SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-K

                  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                   For the fiscal year ended December 31,1997


                          Commission file number 0-3797

                                  MASTEC, INC.
             (Exact name of registrant as specified in its charter)

            Delaware                                      59-1259279
 (State or other jurisdiction                          (I.R.S. Employer
of incorporation or organization)                     Identification No.)

   3155 N.W. 77th Avenue, Miami, FL                        33122-1205
(Address of principal executive offices)                   (Zip Code)

       Registrant's telephone number, including area code: (305) 599-1800

               Securities registered pursuant to Section 12(b) of
                                    the Act:

                                                   Name of each exchange on
       Title of each class                             which registered

   Common Stock, $.10 Par Value                     New York Stock Exchange

               Securities registered pursuant to Section 12(g) of
                                    the Act:

                                      None

                              (Title of each class)

         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934 during the preceding 12 months (or for such period that the  registrant was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes X No.

         Indicate by check mark if disclosure of delinquent  filers  pursuant to
Item 405 of Regulation S-K is not contained  herein,  and will not be contained,
to the best of  registrant's  knowledge,  in  definitive  proxy  or  information
statements  incorporated  by  reference  in Part  III of this  Form  10-K or any
amendment to this Form 10-K. |_|

         The number of shares of Common Stock  outstanding  as of March 20, 1998
was  27,736,541.  The  aggregate  market  value  of the  voting  stock  held  by
non-affiliates  of the registrant  computed by reference to the closing price of
the  registrant's  Common Stock on the New York Stock Exchange on March 20, 1998
was $428,346,532.  Directors, executive officers and 10% or greater stockholders
are  considered  affiliates  for  purposes  of this  calculation  but should not
necessarily be deemed affiliates for any other purpose.

Documents Incorporated by Reference

         Portions  of the  registrant's  Proxy  Statement  for the  1998  Annual
Meeting of Stockholders to be held on May 14, 1998, which will be filed with the
Commission on or before April 15, 1998, are  incorporated by reference into Part
III.





         Certain statements included in this Annual Report are  forward-looking,
such as  statements  regarding  the future  prospects of the  telecommunications
construction  industry and the Company's growth strategy.  These forward-looking
statements are based on the Company's current  expectations and are subject to a
number of risks and uncertainties  that could cause actual results in the future
to differ significantly from results expressed or implied in any forward-looking
statements  included  in this  Annual  Report.  These  risks  and  uncertainties
include,  but  are not  limited  to,  uncertainties  relating  to the  Company's
relationships  with key customers  and  implementation  of the Company's  growth
strategy.  These and other risks are detailed in this Annual Report and in other
documents filed by the Company with the Securities and Exchange Commission.


                                   1. BUSINESS

General

         MasTec is one of the world's  largest  contractors  specializing in the
design,    installation    and   maintenance   of    infrastructure    for   the
telecommunications and other utilities industry. The Company's business consists
of the  installation of aerial and underground  copper,  coaxial and fiber optic
cable networks as well as wireless antenna networks  ("outside plant services").
The Company believes it is the largest independent  contractor for these systems
in the United  States and Spain,  and one of the largest in  Argentina,  Brazil,
Chile and Peru. The Company also installs  central office  switching  equipment,
and designs,  installs and maintains  integrated voice, data and video local and
wide area networks inside buildings ("inside wiring"). Clients for the Company's
services  include major  domestic and  international  telecommunication  service
providers  such  as the  regional  Bell  operating  companies  ("RBOCs"),  other
incumbent and competitive local exchange carriers,  cable television  operators,
long-distance operators and wireless phone companies.  The Company also provides
infrastructure  construction  services to the electric  power industry and other
public utilities.

         MasTec has experienced significant and consistent growth as a result of
its favorable trends in the telecommunications industry, its ability to identify
and integrate strategic acquisitions and, its competitive position as one of the
largest  providers  of  infrastructure   services.  The  Company's  revenue  has
increased  from $142.6  million in 1994 to $703.4  million in 1997.  The Company
expects to continue to grow through additional strategic acquisitions as well as
through  internal  expansion.  Since January 1996,  the Company has completed 16
domestic  and  three  foreign  acquisitions  and  actively  continues  to pursue
complimentary  acquisitions  in the highly  fragmented  infrastructure  services
industry.  Internal  growth is  expected  to be driven by the  expansion  of the
global  telecommunications and power distribution  industries resulting from (i)
continued global deregulation,  which is allowing numerous new service providers
to enter the marketplace and is increasing the competitive  pressure on existing
participants  to upgrade and expand their  networks;  (ii)  increasing  consumer
demand for  advanced  communications  services  which  require the  upgrading of
existing   infrastructure  to  handle  increased   bandwidth  needs;  and  (iii)
increasing  reliance on  outsourcing  of  infrastructure  needs to full  service
contractors by service providers in an effort to reduce costs and focus on their
core competencies.

Competitive Strengths

          The Company seeks to differentiate itself from its competitors through
the following characteristics:

         Strong  Customer  Relationships.  Founded  in  1929,  the  Company  has
developed  strong   relationships  with  numerous   telecommunications   service
providers  by  providing  high  quality  services  in a cost and time  efficient
manner.  The Company has been providing  services to Telefonica de Espana,  S.A.
("Telefonica") and BellSouth  Telecommunications,  Inc.  ("BellSouth"),  its two
largest  customers,  since 1950 and 1969,  respectively,  and maintains  similar
long-term  relationships  with many of its other  customers.  For the year ended
December 31, 1997, the company derived  approximately 26% and 12% of its revenue
from services  performed for  Telefonica  and  BellSouth,  respectively.  MasTec
currently has 23 multi-year  service  contracts with  Telefonica,  the RBOCs and
other  telecommunications  service  providers for certain of their outside plant
requirements  up  to a  specific  dollar  amount  per  job  and  within  certain
geographic areas.

         Diverse Customer Base.  MasTec provides a full range of  infrastructure
services to a diverse customer base. Domestically,  the Company provides outside
plant  services  to  local  exchange  customers  such  as  BellSouth,   US  West
Communications,  Inc., SBC  Communications,  Inc.,  United Telephone  Company of


                                       2


Florida,   Inc.  (a  subsidiary  of  Sprint  Corporation   ("Sprint"))  and  GTE
Corporation.  The Company also provides  outside plant  services to  competitive
local  exchange  carriers  such  as MFS  Communications  Company,  Inc.,  Sprint
Metropolitan   Networks,   Inc.  and  MCI  Metro,   Inc.  (the  local  telephone
subsidiaries   of   Sprint   and   MCI   Communications   Corporation   ("MCI"),
respectively),  cable  television  operators  such  as  Time  Warner  Inc.,  Cox
Communications,  Inc. and Marcus Cable Company,  long distance  carriers such as
MCI and Sprint, and wireless  communications  providers such as PrimeCo Personal
Communications  LP  and  Sprint  Spectrum,  L.P.  Internationally,  the  Company
provides outside plant services,  turn-key  switching  systems  installation and
inside wiring services primarily to Telefonica,  the principal telephone company
in Spain, and Telefonica's affiliates in Argentina,  Chile and Peru. The Company
also services the local telephone  subsidiaries of Telecomunicacoes  Brasileiras
S.A. ("Telebras"), the Brazilian government-owned  telecommunications system, in
Sao Paulo,  Rio de Janeiro,  Parana and other  states in the more  populous  and
developed  Southern  region of  Brazil,  as well as  Companhia  Riograndense  de
Telecomunicacoes  S/A ("CRT"),  the local telephone company in Rio Grande do Sul
which is partly owned by  Telefonica.  For the year ended December 31, 1997, the
Company  derived  approximately  11% of its revenue from services  performed for
Telebras.

         The  Company  renders  inside  wiring  services   nationwide  to  large
corporate  customers with multiple  locations such as First Union National Bank,
International  Business  Machines  Corporation  ("IBM") and Dean Witter Reynolds
Inc., and to universities and health care providers.

         Turn-key  Capabilities.  The  Company  believes  it is one  of the  few
contractors capable of providing all of the design, installation and maintenance
services  necessary for a cable or wireless network starting from a transmission
point, such as a central office or head-end,  and running  continuously  through
aerial and  underground  cables to the ultimate end users' voice and data ports,
cable outlets or cellular  stations.  The Company can also install the switching
devices at a central office or set up local and wide area voice,  data and video
networks to expand a business'  telecommunications  infrastructure both inside a
specific structure or between multiple structures.

         The  Company  believes  that its  customers  increasingly  are  seeking
comprehensive  solutions  to  their  infrastructure  needs by  turning  to fewer
qualified  contractors  who have the size,  financial  capability  and technical
expertise  to  provide a full  range of  infrastructure  services.  The  Company
believes that this trend will accelerate as industry consolidations increase and
as these  consolidated  entities begin to provide bundled services to end users.
The Company believes it has positioned itself through  acquisitions and internal
growth  as  a  full  service   provider  of  outside  plant  and  inside  wiring
infrastructure services to take advantage of this trend.

         Broad Geographic Presence. The Company has significantly  broadened its
geographic   presence   in  recent   years   through   strategic   acquisitions.
Domestically, MasTec has expanded beyond its historical base in the Southeastern
United  States  and  currently  has  operations  in more  than 30  states in the
Southeast,  mid-Atlantic,  Southwest,  West and  upper  Midwest  regions  of the
country. The Company also substantially  increased its international  operations
through  the  acquisition  in  April  1996  of  Sistemas  e   Instalaciones   de
Telecomunicacion, S.A. ("Sintel"), the largest telecommunications infrastructure
contractor  in Spain,  and  through the  acquisition  in July 1997 of a majority
interest in MasTec Inepar S/A Sistemas de Telecomunicacoes  ("MasTec Inepar"), a
leading  telecommunications  construction  company in  Brazil.  Due to its broad
geographic  presence,  the  Company  believes  that it is well suited to service
customers with operations across the United States as well as companies that are
active in multiple  areas of the world such as  multinational  corporations  and
telecommunications  service  providers  that are  expanding  into  international
markets. In addition,  by developing  business in many geographic  regions,  the
Company believes it is less susceptible to changes in the market dynamics in any
one region.

Growth Strategy

         The  Company  is  pursuing  a   disciplined   strategy  of  growth  and
diversification in its core business through strategic acquisitions and internal
expansion as follows:

         Strategic  Acquisitions.  The  Company  plans  to  continue  to  pursue
strategic  acquisitions  in  the  fragmented  telecommunications  and  utilities
infrastructure  industry that either expand its geographic coverage and customer
base or broaden  the range of  services  it can offer to  clients.  The  Company
focuses its acquisition  efforts  primarily on companies with  successful  track
records  and strong  management.  The Company has  acquired 19  companies  since
January 1996 and has  significant  experience  in  identifying,  purchasing  and
integrating  telecommunications  infrastructure businesses both domestically and
internationally. Management believes that MasTec is able to improve the acquired
companies' operating performance by providing strategic guidance, administrative
support,  greater  access  to  capital  and  savings  in the  cost  of  capital,
purchasing and insurance costs.


                                      3


         Internal Expansion.  The Company believes it is poised to capitalize on
the  anticipated  growth in its industry due to its status as one of the world's
largest  telecommunications  infrastructure  contractors and its strong customer
relationships. The International Telecommunications Union estimates that between
1996 and 2000  telecommunications  infrastructure  investment  will  exceed  $50
billion in the United  States  and $600  billion  worldwide.  In  addition,  the
Company believes that the RBOCs and other utilities in the United States,  which
still conduct a significant  portion of their  construction work in-house,  will
out-source  more  infrastructure  construction  in the  future  in  response  to
competitive  pressures to cut costs,  streamline  their  operations and focus on
their core  competencies.  The Company  believes that its reputation for quality
and reliability,  operating efficiency, financial strength, technical expertise,
presence  in  key  geographic  areas  and  ability  to  offer  a full  range  of
construction  services  make it well  positioned  to compete for this  business,
particularly the larger, more technically complex infrastructure projects.

         The Company also anticipates that its Brazilian  operations will become
a more  significant  part  of  its  operations.  The  Brazilian  government  has
estimated that  approximately  $75 billion will need to be invested over a seven
year  period  in order  to  modernize  and  expand  Brazil's  telecommunications
infrastructure.  To accomplish  this  objective,  the  government has stated its
intention of deregulating and privatizing  Brazil's  telecommunications  system.
The Company  believes  that,  through MasTec  Inepar,  it is well  positioned to
participate in this anticipated expansion.

         In addition to focusing on its core telecommunications  customers,  the
Company   plans  to  achieve   incremental   growth  by  continuing  to  develop
complementary  lines of businesses.  These  businesses  include the provision of
premise wiring services to corporations and infrastructure construction services
to the electric power industry and other public utilities.

Services, Markets and Customers

         The Company's principal business is the provision of telecommunications
and other utilities  infrastructure  construction  services,  consisting of both
outside plant services and inside wiring services. For the years ended, December
31, 1995, 1996 and 1997, the percentage of the Company's total revenue generated
by outside  plant  services was 91%, 84%, and 84%,  respectively,  and by inside
wiring services was 9%, 16% and 16%, respectively. The Company operates in North
America,  Spain,  Argentina,  Chile,  Peru,  and Brazil.  See Note 9 of Notes to
Consolidated Financial Statements for a description of revenue, operating profit
and  identifiable  assets  attributable  to the  Company's  North  American  and
International operations.

Telecommunications Construction - North American Operations

         Outside Plant  Construction.  The Company's principal domestic business
consists of outside plant services for telecommunications  providers,  including
incumbent and competitive local exchange carriers,  cable television  operators,
long-distance  carriers and wireless  communications  providers.  Outside  plant
services  consist  of all of the  services  necessary  to  design,  install  and
maintain the physical  facilities  used to provide  telecommunications  services
from the provider's  central  office,  switching  center or cable headend to the
ultimate  consumer's  home or business.  These services  include the placing and
splicing of cable,  the excavation of trenches in which to place the cable,  the
placing  of  related  structures  such as poles,  anchors,  conduits,  manholes,
cabinets  and  closures,  the  placing of drop lines from the main  transmission
lines to the customer's  home or business,  and the  maintenance  and removal of
these facilities.  The Company has developed  expertise in directional boring, a
highly  specialized  and  increasingly  common  method of placing  buried  cable
networks in congested urban markets without digging a trench.

         The  Company  provides a full range of outside  plant  services  to its
telecommunications   company  customers,   although  certain  of  the  Company's
customers, principally the RBOCs, handle certain of these services in-house. The
Company's  customers  generally  supply  materials  such as cable,  conduit  and
telephone equipment,  and the Company provides the expertise,  personnel,  tools
and equipment  necessary to perform the required  installation  and  maintenance
services.

         The Company  currently  provides  outside plant  services  primarily to
customers in Alabama, Alaska, Arizona,  California,  Colorado, Florida, Georgia,
Iowa, Kansas,  Michigan,  Minnesota,  Montana,  Nebraska,  North Carolina, North
Dakota, South Dakota, South Carolina, Tennessee, Texas, Virginia and Wyoming, as
well as Ontario,  Canada.  Principal  customers for  telecommunications  outside


                                       4


plant  services   include   BellSouth,   US  West   Communications,   Inc.,  SBC
Communications,  Inc., the long distance and local exchange subsidiaries of both
MCI and Sprint, GTE Corp., MFS Communications  Company,  Inc., Time Warner Inc.,
Cox Communications, Inc. and Marcus Cable Company.

         Services rendered to the Company's  incumbent local exchange customers,
including  BellSouth,  are performed  primarily  under master  contracts,  which
typically  are  exclusive  service  contracts  to provide  all of the  carrier's
outside  plant  requirements  up to a  specified  dollar  amount  per job within
certain  geographic areas. These contracts generate revenue ranging between $3.0
million and $30.0 million over their  respective  terms,  generally two to three
years.  Such contracts are typically  subject to termination at any time upon 90
to 180 days prior  notice to the  Company.  Each  master  contract  contemplates
hundreds of individual construction and maintenance projects generally valued at
less than $100,000 each. These contracts  typically are awarded on a competitive
bid basis,  although  customers  are  sometimes  willing to  negotiate  contract
extensions  beyond  their  original  terms  without  opening them up to bid. The
Company  currently has 20 master  contracts  with  telecommunications  customers
covering defined regions within the United States, including 12 with BellSouth.

         In addition  to services  rendered  pursuant to master  contracts,  the
Company  provides  outside plant  services on individual  projects  awarded on a
competitive  bid basis or through  individual  negotiation.  While such projects
generally  are  substantially  larger than the  individual  projects  covered by
master contracts,  they typically require the provision of services identical to
those rendered under master contracts.

         The  Company  also   provides   turn-key  site   acquisition,   design,
installation and maintenance services to the wireless  communications  industry,
including  site  acquisition  and   preparation,   design  and  construction  of
communications  towers,   placement  of  antennas  and  associated  wiring,  and
construction of equipment huts.

         The Company  provides outside plant  construction  services to electric
power  companies  and  other  public  utilities,  including  the City of  Austin
Electric   Department,   City  Public  Service  of  San  Antonio,   Duke  Energy
Corporation,  Florida  Power  and  Light  Company,  Florida  Power  Corporation,
Jacksonville  Electric Authority,  Memphis Light, Gas and Water Division,  Texas
Utilities  Company,  Carolina  Power & Light Co.,  and Georgia  Power Co., and a
number  of  regional  electrical   cooperatives.   These  services,   which  are
substantially    similar   to   the   outside   plant   services   provided   to
telecommunications  companies, include directional boring for conduit and pipes,
trenching,  placing of electric  cables,  and  restoring  asphalt  and  concrete
surfaces.  Services to many of these  customers  are  provided  under  exclusive
master contracts with two to three year initial terms expiring at various dates.

         Inside Premises Construction. The Company provides design, installation
and maintenance of integrated  voice,  data and video networks inside  buildings
for large  companies with multiple  locations such as First Union National Bank,
IBM and Dean Witter  Reynolds Inc., for college  campuses such as the University
of  California  at  Riverside  and the  University  of Miami and for health care
providers  such as Carolina  Medical Center and Kaiser  Permanente.  The Company
provides  these  services  primarily  on the east and west  coasts of the United
States although the Company is capable of providing these services nationwide.

         Inside wiring services consist of designing, installing and maintaining
local  area  networks  and wide  area  networks  linking  the  customers'  voice
communications  networks  at  multiple  locations  with  their  data  and  video
services.  This type of work is  similar  to outside  plant  construction;  both
involve  the placing and  splicing  of copper,  coaxial and fiber optic  cables.
Inside  wiring is less capital  intensive  than outside plant  construction  but
requires a more technically proficient work force.

         The Company  contracts with primary  contractors to provide services to
First Union National Bank and IBM under  subcontracts that are similar to master
contracts  in the  outside  plant  business  because  they grant the Company the
exclusive  right to provide  inside wiring  services to these  customers  within
certain geographic regions.  The Company also provides inside wiring services on
individual  projects  that are  awarded  on a  competitive  bid basis or through
individual   negotiation.   The  Company   intends  to  take  advantage  of  the
fragmentation  of the inside wiring industry by marketing a full range of inside
wiring  services  to large  corporations  with  multiple  locations  across  the
country.  The Company  believes that these types of customers  increasingly  are
seeking a single vendor to provide all of their inside wiring.

         The Company is one of two distributors in the United States, Canada and
Mexico of a fiber optic cable installation technology known as FutureFlex.  This
technology  allows the  installation  of individual  strands of optical fiber by


                                       5


means of compressed gas blown through  flexible  tubing without the necessity of
cutting or splicing the cable except at the terminal  points.  As a result,  the
network can be expanded, changed or moved more easily and cost-effectively.

Telecommunications Construction - International Operations

         Overview.  The Company is engaged in the  telecommunications  and other
utility construction business internationally,  a wholly owned subsidiary of the
Company,  primarily in Argentina,  Brazil,  Chile, Peru and Spain through Sintel
and its  affiliates  and MasTec  Inepar.  Sintel is a Spanish  company  that has
provided telecommunications construction services to Telefonica and Telefonica's
affiliates  since 1950.  Telefonica is the principal  provider of local and long
distance telephony in Spain.  Through its affiliate,  Telefonica  Internacional,
S.A.,  Telefonica  owns  interests  in  certain  local  telephone  companies  in
Argentina,  Brazil,  Chile and Peru.  Through Sintel, the Company is the leading
provider of  telecommunications  infrastructure  services to Telefonica  and its
affiliates  in Spain,  and one of the  leading  providers  of these  services to
Telefonica's affiliates in Argentina, Chile and Peru.

         The Company renders telecommunications  construction services in Brazil
through MasTec Inepar,  a Brazilian  company owned 51% by the Company and 49% by
Inepar SA Industrias e Construcoes ("Inepar"), a leading  telecommunications and
power  infrastructure and equipment company in Brazil.  MasTec Inepar was formed
in July 1997 to take  advantage  of  construction  opportunities  created by the
privatization,    de-monopolization    and   deregulation   of   the   Brazilian
telecommunications market.

         Spanish Operations.  In Spain, Sintel's principal business is providing
outside plant  services,  inside wiring  services and equipment  installation to
Telefonica and its affiliates. These services are substantially similar to those
provided by the Company in the United  States.  Sintel also installs  Telefonica
telephone  equipment in residences and businesses.  Sintel's Spanish  operations
are  concentrated  in Spain's largest  commercial  centers,  Madrid,  Barcelona,
Seville  and  Valencia,  and  surrounding  areas,  although  Sintel  maintains a
presence throughout Spain.

         Sintel provides the largest  percentage of  Telefonica's  outside plant
services  requirements.  Sintel  provides the bulk of these services under three
separate  multi-year  comprehensive  services  contracts,  which are  similar to
master  contracts  in the United  States,  for distinct  types of outside  plant
services: (i) placement and splicing of communications lines; (ii) trenching and
placing  of  conduits;  and  (iii)  placing  of drop  lines  to  residences  and
businesses.  These  agreements  set the unit prices at which  Sintel will render
services to Telefonica and establish the percentage of Telefonica's requirements
in these  categories  that will be satisfied by Sintel in particular  geographic
areas of Spain.  These three  contracts  expire at the end of 1998;  the Company
expects to  negotiate  new  comprehensive  services  contracts  with  Telefonica
beginning  in October  1998.  Telefonica  enters into  similar  agreements  with
Sintel's  principal  competitors in Spain.  The Company believes that Telefonica
considers  various  factors in awarding these contracts and setting their terms,
including   price,   quality,   technical   proficiency  and  the   contractor's
relationship with Telefonica. Telefonica also awards individual projects through
a competitive bidding process or through individual negotiation.

         In addition to outside plant  services,  Sintel  provides inside wiring
services to Telefonica that are  substantially  similar to those provided by the
Company in the United  States.  Sintel  also  installs  transmission  equipment,
central office  switching  equipment,  power  generating  equipment and cellular
equipment for telecommunications systems for Telefonica. This equipment includes
multiplexers,   carrier  systems  and  microwave  systems,  and  central  office
equipment  such as frames,  protectors,  connector  blocks,  batteries and power
systems,  and cellular  antennas and cell sites. The contracts for this work are
awarded on a competitive bid basis or through individual negotiation.

         Telefonica  is the  principal  provider  of  local  and  long  distance
telephony  in Spain.  As a result of  European  Union  initiatives,  Spain  must
liberalize  its  telecommunications  industry  by  December  1,  1998 to  permit
competitors  to  Telefonica.  In July 1997, a second  license to provide  public
switched  telephony was awarded to  Retevision,  S.A.  ("Retevision"),  which is
owned  partly by the Spanish  government,  Societa  Finanziaria  Telefonica  per
Azioni SpA  ("STET"),  an Italian  telephone  company,  and Empresa  Nacional de
Electricidad,  S.A., a Spanish electric  utility  company.  Retevision has begun
providing  local telephony in Spain in 1998, and a third local and long distance
telephony  license is  expected  to be awarded by may 30,  1998.  By December 1,
1998, it is expected that the industry will be completely  open to  competition.
The Company  believes that the increased  competition  in the Spanish  telephony
market will increase  demand for outside plant  services in Spain as new service
providers  build  competing  networks.   The  Company  has  commenced  providing
telecommunications construction services to Retevision.


                                       6


         Sintel also  installs  and  maintains  cable  television  networks  for
Telefonica and its affiliates and for Retevision.  The Spanish cable  television
market  has been  underdeveloped  due to the lack of a legal  structure  for the
provision  of cable  telecommunications  services  in  Spain.  In 1997,  a legal
structure for the provision of these  services was completed and 21 new licenses
to provide cable  television  services have been awarded and applications for 13
additional  licenses are  pending.  In  addition,  as of January 1, 1998,  cable
operators are entitled to provide local telephony  within their service areas as
well as long distance  telephony.  The Company  anticipates  that the demand for
construction   services  to  the  cable   television   industry   will  increase
significantly  as  new  networks  are  constructed  and  existing  networks  are
upgraded.  Sintel  also  has  begun  providing  infrastructure  services  to the
electric  power  industry  through  a  recently  formed  joint  venture  with  a
Portuguese electrical contractor.

         Argentina,  Chile, Peru Operations.  The Company operates in Argentina,
Chile and Peru through unconsolidated  subsidiaries in which the Company holds a
50%  interest.  The  other  50%  interests  in  these  subsidiaries  are held by
established local infrastructure  construction companies and operational control
is shared by the Company and its local  partner.  In  Argentina  and Chile,  the
Company's  partner  is a  subsidiary  of  Sociedad  Macri,  one of  the  largest
commercial  groups in Argentina.  In Peru, the Company's partner is a subsidiary
of Grana y Montero,  S.A., a leading construction company in Peru. The principal
shareholder  of Grana y  Montero,  S.A.,  is a  shareholder  and a  director  of
Telefonica del Peru. The Company's Latin American  affiliates  primarily provide
outside plant services,  cable  television  installation and similar services to
Telefonica's local telephone company affiliate in each of the countries in which
the  affiliate is located:  Telefonica  de Argentina in  Argentina;  Compania de
Telefonos de Chile in Chile;  and  Telefonica  del Peru in Peru.  As part of the
agreement  with Sociedad  Macri for the  acquisition of its interest in Sintel's
Argentine affiliate,  Sociedad Macri has contributed to the affiliate certain of
its telecommunications  construction contracts with Telecom de Argentina,  S.A.,
the principal provider of local telephony in northern Argentina.

         Brazilian Operations. MasTec Inepar, a Brazilian company, was formed in
July  1997  by  the  Company  and  Inepar.  As  part  of the  formation,  Inepar
transferred   the   personnel,   qualifications   and   other   assets   of  its
telecommunications   construction   division  to  MasTec  Inepar  together  with
contracts for specific projects with prices totaling approximately $280 million.
These  contracts  cover the  provision of outside  plant  services for the local
exchange    subsidiaries   of   Telebras,    the   Brazilian    government-owned
telecommunications  company,  particularly in Sao Paulo, Rio de Janeiro,  Parana
and other states in the more populous and developed  southern  region of Brazil.
MasTec Inepar also provides  services to CRT, the local telephone company in Rio
Grande do Sul which is partly owned by  Telefonica.  The  services  provided are
principally outside plant services for wireless communications networks.

Telecommunications Investments

         The  Company  has  invested  in certain  telecommunications  businesses
located in or servicing  Latin  America.  These  include  minority  interests in
Supercanal Holding,  S.A.  ("Supercanal") and related entities,  which operate a
cable  television  system  in  Argentina,   and  in  Consorcio   Ecuatoriano  de
Telecomunicaciones,  S.A.  ("Conecel"),  an  Ecuadorian  cellular  company.  See
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations."  The  Company  also  recently  acquired  a license in  Paraguay  to
construct and operate a nationwide personal  communication  system ("PCS"),  and
has  reached  agreement  with  Inepar,  its partner in MasTec  Inepar,  and with
Sociedad  Macri,  its partner in Argentina and Chile, to share in development of
the system.  The agreement  with Inepar and Sociedad  Macri  regarding  Paraguay
provides that MasTec Inepar will construct the system.

Sales and Marketing

         Executives of the Company's outside plant  subsidiaries  market outside
plant  services to existing and potential  telecommunications  and other utility
customers in order to negotiate  new  contracts or be placed on lists of vendors
invited  to  submit  bids  for  master  contracts  and  individual  construction
projects.  Inside  premises  services are marketed both by the executives of the
subsidiaries  that provide these services and through  commissioned  salespeople
employed by the Company. The Company is developing a company-wide marketing plan
to emphasize the "MasTec" brand name to national and international customers.


                                       7


Suppliers

         The  Company's  customers  supply the majority of the raw materials and
supplies  necessary to carry out the Company's  contracted  work. The Company is
not  dependent on any one supplier  for any raw  materials or supplies  that the
Company  obtains for its own account other than the  FutureFlex  airblown  fiber
product that the Company distributes for Sumitomo Electric Lightwave Co.

Competition

         The industry in which the Company  competes is highly  competitive  and
fragmented.  The Company competes with a number of contractors in the markets in
which it operates,  ranging from small independent firms servicing local markets
to larger firms servicing  regional markets,  as well as with large national and
international   equipment   vendors  on  turn-key   projects   who   subcontract
construction work to contractors other than the Company. These equipment vendors
typically are better  capitalized  and have greater  resources than the Company.
Most  companies  engaged  in the same or similar  business  tend to operate in a
specific,  limited  geographic  area,  although larger  competitors may bid on a
particular project without regard to location.  Although the Company believes it
is the largest provider of infrastructure services to the telecommunications and
other  utilities  industry in the United States and Spain and one of the largest
in  Argentina,  Brazil,  Chile  and Peru,  neither  the  Company  nor any of its
competitors  can  be  considered  dominant  in the  industry  on a  national  or
international  basis.  The  Company  also faces  competition  from the  in-house
construction  and  maintenance  departments  of RBOCs  and other  customers  and
potential  customers,  which employ personnel who perform some of the same types
of services as those provided by the Company.

Employees

         As of December  31, 1997,  the Company  (excluding  its  unconsolidated
companies)  had  approximately  7,850  employees,  4,600 of whom are employed in
domestic operations and 3,250 of whom are employed in international  operations.
Approximately 100 of the Company's domestic employees and approximately 3,200 of
Sintel's employees are unionized.  See "Management's  Discussion and Analysis of
Financial  Condition  and Results of  Operations  Overview"  for a discussion of
Sintel's labor relations.


                                  2. PROPERTIES

         The  Company's  corporate  headquarters  are located in a 60,000 square
foot  building  owned by the Company in Miami,  Florida.  The  Company  also has
regional offices in owned facilities located in Tampa,  Florida,  Austin,  Texas
and Charlotte, North Carolina.  Sintel's principal executive offices are located
in leased  premises in Madrid,  Spain and MasTec  Inepar's  principal  executive
offices are located in leased premises in Sao Paulo, Brazil.

         The Company's  principal  operations  are conducted from field offices,
equipment  yards and  temporary  storage  locations,  none of which the  Company
believes is material to its  operations  because most of the Company's  services
are  performed  on the  customers'  premises  or on  public  rights  of way.  In
addition,  the Company believes that equally suitable alternative  locations are
available in all areas where it currently does business.


                              3. LEGAL PROCEEDINGS

         The following is a summary of legal proceedings involving the Company.

         In December 1990, Albert H. Kahn, a stockholder of the Company, filed a
class action and  derivative  suit in Delaware  state court against the Company,
the  then-members  of its Board of Directors and National  Beverage  Corporation
("NBC"), the Company's  then-largest  stockholder.  The complaint alleges, among
other  things,  that the  Company's  Board of Directors  and NBC breached  their
respective fiduciary duties in approving certain transactions. The lawsuit seeks
to rescind these transactions and to recover damages in an unspecified amount.

         In  November  1993,  Mr.  Kahn  filed a  class  action  and  derivative
complaint against the Company,  the then members of its Board of Directors,  and
Jorge L. Mas, Jorge Mas and Juan Carlos Mas, the principal  shareholders  of the
Company.  The lawsuit alleges,  among other things,  that the Company's Board of
Directors and NBC breached their  respective  fiduciary  duties by approving the
terms of the  acquisition  of the  Company by the Mas  family,  and that the Mas
family had knowledge of the fiduciary duties owed by NBC and the Company's Board


                                       8


of Directors and knowingly and substantially participated in the breach of these
duties.  The lawsuit also claims  derivatively that each member of the Company's
Board of  Directors  engaged in  mismanagement,  waste and  breach of  fiduciary
duties in managing the  Company's  affairs prior to the  acquisition  by the Mas
family.

         There has been no activity in either of these lawsuits in more than one
year.  The Company  believes that the  allegations in each of these lawsuits are
without merit and intends to defend these lawsuits vigorously.

         In November 1997,  Church & Tower,  Inc., a wholly-owned  subsidiary of
the Company ("Church & Tower"),  filed a lawsuit against  Miami-Dade County (the
"County") in Florida state court alleging breach of contract and seeking damages
exceeding  $3.0 million in connection  with the County's  refusal to pay amounts
due to Church & Tower under a multi-year  agreement to perform road  restoration
work for the Miami-Dade Water and Sewer Department ("MWSD"), a department of the
County, and the County's wrongful  termination of the agreement.  The County has
refused to pay amounts due to Church & Tower under the  agreement  until alleged
overpayments  under the agreement  have been  resolved,  and has  counterclaimed
against Church & Tower seeking damages.  The Company believes the  counterclaim,
if  successful,  will not exceed  $2.1  million.  The County also has refused to
award a new road restoration agreement for MWSD to Church & Tower, which was the
low bidder for the new agreement.  The Company  believes that any amounts due to
the County under the existing  agreement are not material and may be recoverable
in whole or in part from Church & Tower  subcontractors  who actually  performed
the work and whose bills were submitted directly to the County.

         The Company is a party to other  pending legal  proceedings  arising in
the normal course of business, none of which the Company believes is material to
the Company's financial position or results of operations.


             4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         There was no vote of security  holders during the fourth quarter of the
last fiscal year.


                      EXECUTIVE OFFICERS OF THE REGISTRANT

         The  following is a list of the names and ages of all of the  executive
officers of the Company,  indicating  all positions and offices with the Company
held by each  such  person,  and each  such  person's  principal  occupation  or
employment  during the past five years.  The executive  officers hold office for
one year or until their successors are elected by the Board of Directors.


    Name                 Age                    Position

Jorge Mas                35      Chairman of the Board of Directors,
                                    President and Chief Executive Officer
Henry N. Adorno          50      Executive Vice President and Special Counsel
Ismael Perera            49      Senior Vice President-Operations
Edwin D. Johnson         41      Senior Vice President-Chief Financial Officer
Carlos A. Valdes         34      Senior Vice President-Corporate Development
Jose M. Sariego          43      Senior Vice President-General Counsel

         Jorge Mas has been President, Chief Executive Officer and a director of
the Company since March 1994 and was elected  Chairman of the Board of Directors
of the Company in January 1998. Prior to that time and during the preceding five
years,  Mr. Mas served as the President and Chief Executive  Officer of Church &
Tower.  In  addition,  Mr. Mas is the Chairman of the Board of Directors of Neff
Corporation,  a company that sells and leases construction  equipment,  Atlantic
Real Estate  Holding  Corp., a real estate  holding  company,  U.S.  Development
Corp., a real estate  development  company and Santos Capital,  Inc., a merchant
banking firm (all private companies controlled by Mr. Mas) and, during all, or a
portion of the past five years,  has served as the President and Chief Executive
Officer of these corporations.


                                       9


         Henry N.  Adorno was  elected  Executive  Vice  President  and  Special
Counsel of the Company in January 1998. Prior to joining the Company, Mr. Adorno
was President and Chief Executive  Officer of Adorno & Zeder,  P.A., a Miami law
firm that he co-founded in 1986.

         Ismael Perera has been Senior Vice  President-Operations of the Company
since  March 1994.  From  August  1993 until  March 1994,  he served as the Vice
President-Operations  of Church & Tower.  From 1970 until July 1993,  Mr. Perera
served in various capacities in network operations for BellSouth, including most
recently as a Senior Director of Network Operations from 1985 to 1993.

         Edwin D. Johnson has been Senior Vice President-Chief Financial Officer
of the  Company  since  March  1996.  During the 10 years  prior to joining  the
Company,  Mr. Johnson served in various  capacities with Attwoods plc, a British
waste services  company,  including  Chief  Financial  Officer and member of the
Board of Directors during the final three years of his employment with Attwoods.

         Carlos A. Valdes has been Senior Vice  President-Corporate  Development
of the Company since March 1996.  Prior to that time, Mr. Valdes was Senior Vice
President-Finance  of the  Company  from  March  1994 to March  1996  and  Chief
Financial Officer of Church & Tower from 1991 to 1994.

         Jose M. Sariego has been Senior Vice  President-General  Counsel of the
Company since  September  1995.  Prior to joining the Company,  Mr.  Sariego was
Senior  Corporate  Counsel and  Secretary  of Telemundo  Group,  Inc., a Spanish
language television network,  from August 1994 to August 1995. From January 1990
to August 1994,  Mr.  Sariego was a partner in the Miami office of Kelley Drye &
Warren, an international law firm.


                  5. MARKET FOR THE REGISTRANT'S COMMON EQUITY
                         AND RELATED STOCKHOLDER MATTERS

         The  Company's  Common Stock  currently is listed on the New York Stock
Exchange  under the symbol MTZ. Prior to February 14, 1997, the Common Stock was
listed on the Nasdaq  National  Market under the symbol  MASX.  The high and low
closing  prices of the  Common  Stock for each  quarter  of the last two  fiscal
years,  as reported  by the New York Stock  Exchange  and Nasdaq,  are set forth
below:
1997 1996 High Low High Low First Quarter $ 68 7/8 $ 23 $ 12 5/8 $ 9 1/2 Second Quarter $ 47 15/16 $ 26 1/2 $ 35 3/4 $ 11 3/8 Third Quarter $ 54 3/8 $ 39 $ 38 3/8 $ 21 1/2 Fourth Quarter $ 45 1/16 $ 20 3/4 $ 57 3/4 $ 32 5/8
The above quotations reflect interdealer prices, without retail mark up, mark down or commission, and may not necessarily represent actual transactions. The Company's Board of Directors declared a three-for-two stock split in the form of a stock dividend for stockholders of record on February 3, 1997 payable on February 28, 1997. The prices set forth in the preceding table have not been adjusted for the stock split. The Company did not declare any cash dividends for the years ended December 31, 1997 and 1996. At March 20, 1998, there were 4,752 stockholders of record of the Common Stock. On January 30, 1998, the Company issued $200 million of its 7 3/4% Senior Subordinated Notes due 2008 (the "Senior Notes") to qualified institutional buyers and institutional accredited investors in reliance on Rule 144A and pursuant to exemptions from registration under Section 4(2) of the Securities Act of 1933, as amended. The initial purchasers for the Senior Notes sold to the qualified institutional buyers and institutional accredited investors were Jefferies & Company, Inc., BancBoston Securities Inc., CIBC Oppenheimer Corp. and NationsBanc Montgomery Securities LLC. The net proceeds from the offering of the Senior Notes were approximately $194.2 million after underwriting discounts and commissions of approximately $5.0 million and other transaction costs. 10 6. SELECTED FINANCIAL INFORMATION The following table presents selected consolidated financial information of the Company as of the dates and for each of the periods indicated. The selected financial data set forth below should be read in conjunction with the Consolidated Financial Statements, the notes thereto and "Management's Discussion and Analysis of Financial Condition and Results of Operations" included elsewhere in this Annual Report on Form 10-K.
Year Ended December 31, (1) --------------------------- 1993 1994 (2) 1995 1996 (3) 1997 -------------------------------------------------------------- (Amounts in thousands except per share amounts) -------------------------------------------------------------- Statement of Income Data: Revenue $ 74,728 $ 142,583 $ 218,859 $ 534,068 $ 703,369 Cost of revenue 51,763 105,451 158,598 394,497 522,470 Depreciation and amortization 1,520 5,545 8,178 13,686 24,127 General and administrative expenses 15,681 20,595 28,918 72,392 90,995 ------ ------- ------- ------- ------- Operating income 5,764 10,992 23,165 53,493 65,777 Interest expense 302 3,846 5,306 11,940 11,920 Interest and dividend income 359 1,550 3,501 3,480 1,921 Special charges-real estate and investment write-downs (4) 0 0 23,086 0 0 Other income, net (5) 355 1,348 2,250 2,553 8,221 Equity in earnings (losses) of unconsolidated companies and minority interest (6) 1,177 247 (139) 3,133 (449) Provision for income taxes (7) 2,765 3,541 148 17,492 23,610 Income from continuing operations (7) 4,588 6,750 237 33,227 39,940 Discontinued operations 0 825 2,531 (111) 129 ------ ------- ------- ------- ------- Net income $ 4,588 $ 7,575 $ 2,768 $ 33,116 $ 40,069 ====== ======= ======= ======= ======= Pro forma basic earnings per share: Continuing operations (7) $ 0.27 $ 0.26 $ 0.01 $ 1.27 $ 1.46 weighted average common shares outstanding (8) 16,746 25,487 25,263 26,074 27,294 Pro forma diluted earnings per share: Continuing operations (7) $ 0.27 $ 0.26 $ 0.01 $ 1.25 $ 1.43 weighted average common shares outstanding (8) 16,746 25,487 25,440 26,499 27,853
As of December 31, ------------------ 1993 1994 1995 1996 1997 --------------------------------------------------------- (Amounts in thousands) Balance Sheet Data: Property and equipment, net $ 8,038 $ 44,157 $ 50,572 $ 67,177 $ 86,109 Total assets 32,988 155,969 191,272 511,154 587,598 Total debt 5,545 46,977 77,668 164,934 149,057 Total stockholders' equity 16,396 57,270 60,614 116,983 180,731 (1) Amounts have been restated to reflect the 1997 acquisitions of Wilde Construction, Inc. and two related companies and AIDCO, Inc. and one related company, which were accounted for as poolings of interest. See Note 2 of Notes to Consolidated Financial Statements. (2) Includes the results of Burnup & Sims Inc. from March 11, 1994. (3) Includes the results of Sintel from May 1, 1996. (4) As a result of the disposal of non-core real estate assets and other investments, the Company recorded $23.1 million in special charges in the year ended December 31, 1995. See "Management's Discussion and Analysis of Financial Condition and Results of Operations". (5) In 1997, the Company sold a portion of its indirect interest in Conecel for a gain of $7.1 million. See Note 2 of Notes to Consolidated Financial Statements. 11 (6) Included in 1997 results is the minority interest related to the Company's Brazilian operation. See Note 2 to Notes to the Consolidated Financial Statements. (7) Provision for income taxes and income from continuing operations have been adjusted to reflect a pro forma tax provision for companies that were previously S Corporations. (8) Amounts have been adjusted to reflect the three-for-two stock split effected February 28, 1997 and shares issued in connection with two acquisitions accounted for under the pooling of interest method.
7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Overview MasTec is one of the world's largest contractors specializing in the build-out of telecommunications and other utilities infrastructure. The Company's business consists of the design, installation and maintenance of the outside physical plant for telephone and cable television communications systems and of integrated voice, data and video local and wide area networks inside buildings, and the installation of central office telecommunications equipment. The Company also provides infrastructure construction services to the electric power industry and other public utilities. MasTec was formed in March 1994 through the combination of Church & Tower and Burnup & Sims Inc. ("Burnup & Sims"), two established names in the U.S. telecommunications and other utilities construction services industry. In April 1996, the Company purchased Sintel, a company engaged in telecommunications infrastructure construction services in Spain, Argentina, Chile and Peru, from Telefonica. The Sintel acquisition gave the Company a significant international presence and more than doubled the size of the Company in terms of revenue and number of employees. In Argentina, Chile and Peru, the Company operates through incorporated entities in which it holds a 50% interest and which are accounted under the equity method. Operational control of these entities is shared by the Company and its local partner. See Notes 2 and 9 of Notes to Consolidated Financial Statements for pro forma financial information and geographic information, respectively. In July and August 1997, the Company acquired Wilde Construction, Inc. and two related companies and AIDCO, Inc. and one related company (collectively, the "Pooled Companies") through an exchange of common stock. The acquisitions were accounted for as poolings of interest. Accordingly, the Company's consolidated financial statements include the results of the Pooled Companies for all periods presented. See Note 2 of Notes to Consolidated Financial Statements. In July 1997, the Company acquired a 51% interest in MasTec Inepar, a Brazilian telecommunications infrastructure construction company. At the time of the acquisition, MasTec Inepar had a backlog of construction contracts of approximately $280.0 million. The results of MasTec Inepar are consolidated in the results of the Company, net of a 49% minority interest, beginning August 1997. During the year ended December 31, 1997, the Company completed nine other acquisitions that have been accounted for under the purchase method of accounting and the results of operations of which have been included in the Company's consolidated financial statements from the respective acquisition dates. The Company's pro forma results of operations for 1997 giving effect to these acquisitions would not differ materially from actual results. On September 3, 1997, Sintel filed a petition with the Spanish labor authorities to approve a restructuring of its workforce. In response to the Company's petition, the unionized employees declared work stoppages during the latter part of September 1997 and continued with half day strikes through the first week in October 1997. In March 1998, Sintel entered into an agreement with its unions to resolve the labor dispute. Under the agreement, the Company is entitled to permanently reduce its workforce, beginning with the placement of 209 employees on unemployment partly paid by the Spanish government for up to six months. Additional voluntary terminations and the results of certain agreed upon restructuring activities will allow the Company to quantify final severance arrangements over that period. In addition, the agreement calls for reductions in certain non-wage compensation and increases in productivity benchmarks. The agreement also contemplates an increase in base wage rates for remaining union workers. While management anticipates a reduction in ongoing operating costs to result from these negotiations, the Company recognizes that it services an 12 increasingly competitive telephony industry in the Spanish market and a substantial portion of any savings may be offset by more competitive prices to Telefonica and other communication service customers. As of December 31, 1997, the Company had not reserved for possible restructuring costs associated with a settlement of the Sintel labor situation in its consolidated financial statements. The Company is currently negotiating with its unions to determine the final number of employees and related severance amounts. The ultimate amount to be paid, which is expected to be significant, cannot be presently quantified. Results of Operations Revenue is generated primarily from telecommunications and other utilities infrastructure services. Infrastructure services are provided to telephone companies, public utilities, cable television operators, other telecommunications providers, governmental agencies and private businesses. Costs of revenue includes subcontractor costs and expenses, materials not supplied by the customer, fuel, equipment rental, insurance, operations payroll and employee benefits. General and administrative expenses include management salaries and benefits, rent, travel, telephone and utilities, professional fees and clerical and administrative overhead. The following table sets forth certain historical consolidated financial data as a percentage of revenue for the years ended December 31, 1995, 1996 and 1997.
Years Ended December 31, ---------------------------------- 1995 1996 1997 ---- ---- ---- Revenue 100.0% 100.0% 100.0% Costs of revenue 72.5 73.9 74.3 Depreciation and amortization 3.7 2.6 3.4 General and administrative expenses 13.2 13.6 12.9 ---- ---- ---- Operating income 10.6 9.9 9.4 Interest expense 2.4 2.2 1.7 Interest and dividend income, other income, net, equity in earnings of unconsolidated companies and minority interest 2.6 1.7 1.4 Special charges-real estate and investment write-downs 10.6 0.0 0.0 ---- ---- ---- Income from continuing operations before provision for income taxes 0.2 9.4 9.1 Provision for income taxes (1) 0.1 3.2 3.4 ---- ---- ---- Income from continuing operations (1) 0.1% 6.2% 5.7% ==== ==== ==== (1) Provision for income taxes and income from continuing operations has been adjusted to reflect a tax provision for companies that were S corporations.
Year Ended December 31, 1997 Compared to Year Ended December 31, 1996 Revenue from domestic operations increased $75.1 million, or 21.7%, to $421.0 million in 1997 as compared to $345.9 million in 1996. Domestic growth was generated by acquisitions. Revenue generated by international operations increased $94.2 million, or 50.1%, to $282.4 million in 1997 as compared to $188.2 million in 1996 due primarily to the inclusion of Sintel's results for the entire period in 1997 compared to eight months in the 1996 period and the results of MasTec Inepar for five months ended December 31, 1997, which totaled $74.9 million. Sintel's revenue was negatively impacted in 1997 by an 18% devaluation in the Spanish peseta and by work stoppages in the second half of 1997 as discussed in "Overview". Gross profit (revenue less cost of revenue), excluding depreciation and amortization, increased $41.3 million, or 29.6%, to $180.9 million, or 25.7% of revenue in 1997 as compared to $139.6 million, or 26.1% of revenue in 1996. The decrease in gross profit as a percentage of revenue was due primarily to lower margins generated by international operations. Domestic gross margins (gross profit as a percentage of revenue) increased to 27.4% in 1997 from 25.1% in 1996 primarily due to the performance of certain higher margin domestic jobs during 1997 and domestic cost reductions. There can be no assurance that the Company will be able to obtain higher margin jobs and implement further cost reductions in the future. International gross margins decreased to 23.2% in 1997 as compared to 28.0% in 1996 due to overall lower margins from the Company's newly formed Brazilian operations (15.0%) and lower productivity in the second half of 1997 from the Company's Spanish operations. 13 Depreciation and amortization increased $10.4 million, or 75.9%, to $24.1 million in 1997 from $13.7 million in 1996. The increase in depreciation and amortization was a result of increased capital expenditures in the latter part of 1996, as well as depreciation and amortization associated with acquisitions. As a percentage of revenue, depreciation and amortization was 3.4% and 2.6% of revenue for 1997 and 1996, respectively. General and administrative expenses increased $18.6 million, or 25.7%, to $91.0 million, or 12.9% of revenue for 1997 from $72.4 million, or 13.6% of revenue for 1996. Domestic general and administrative expenses were $49.9 million, or 11.9% of domestic revenue in 1997, compared to $41.4 million, or 12.0% of domestic revenue for 1996. The increase in dollar amount of domestic general and administrative expenses is due primarily to acquisitions. The decline as a percentage of domestic revenue is due primarily to the higher revenue volume. International general and administrative expenses increased $10.1 million, or 32.6%, to $41.1 million, or 14.6% of international revenue in 1997 from $31.0 million, or 16.5% of international revenue for 1996. The increase in international general and administrative expenses was due to the inclusion of Sintel's results for the entire 1997 period, compared to only eight months during the 1996 period. The decline in international general and administrative expenses as a percentage of international revenue is due to a lower general and administrative expense for the Brazilian operations, which was 2.2% of Brazilian revenue. Operating income increased $12.3 million, or 23.0%, to $65.8 million, or 9.4% of revenue in 1997 from $53.5 million, or 9.9% of revenue in 1996. Interest expense remained constant at $ 11.9 million for both periods, primarily due to the lower interest rates on Spanish and domestic borrowings and the conversion of the Company's 12% Subordinated Convertible Debentures into Common Stock on June 30, 1996. Offsetting the decline was the inclusion of interest expense associated with Sintel's working capital needs for the entire 1997 period compared to eight months for the 1996 period. The Company anticipates increased interest expense as a result of its recently completed bond offering. See -"Financial Condition, Liquidity and Capital Resources." Included in other income for 1997, is a $7.1 million gain on sale of the Company's indirect interest in Conecel (See Note 2 of Note to Consolidated Financial Statements). Provision for income taxes on a pro forma basis was $23.6 million, or 36.9% of income from continuing operations before equity in earnings of unconsolidated companies, taxes and minority interests in 1997, compared to $17.5 million, or 36.8% of income from continuing operations before equity in earnings of unconsolidated companies, taxes and minority interests in 1996. Income from continuing operations on a pro forma basis increased $6.7 million, or 20.2%, from $33.2 million in 1996 to $39.9 million in 1997. Income from continuing operations on a pro forma basis as a percentage of revenue decreased to 5.7% in 1997 from 6.2% in 1996. Year Ended December 31, 1996 Compared to Year Ended December 31, 1995 Revenue increased $315.2 million, or 144.0%, to $534.1 million for the year ended December 31, 1996 from $218.9 million for the year ended December 31, 1995. Domestic revenue increased $127.0 million, or 58.0%, to $345.9 million for 1996 from $218.9 million for 1995, primarily due to growth in revenue generated from existing contracts and to domestic acquisitions completed in 1996 which generated $23.5 million in revenue. International revenue, comprised of revenue from Sintel, which the Company acquired in April 1996, contributed $ 188.2 million of revenue for the year ended December 31, 1996. Gross profit (revenue less costs of revenue), excluding depreciation and amortization, increased $79.3 million, or 131.5%, to $139.6 million, or 26.1% of revenue, for the year ended December 31, 1996 from $60.3 million, or 27.5% of revenue, for the year ended December 31, 1995. Domestic gross margins (gross profit as a percentage of revenue) decreased to 25.1% for the year ended December 31, 1996 from 27.5% for the year ended December 31, 1995. The decline in domestic gross margins was primarily due to additional start-up and expansion costs relating to the rapid growth in revenue. International gross margins were 28.0% for the year ended December 31, 1996. 14 Depreciation and amortization increased $5.5 million, or 67.1%, to $13.7 million for the year ended December 31, 1996 from $8.2 million for the year ended December 31, 1995. Domestic depreciation and amortization as a percentage of domestic revenue decreased to 3.4% for 1996 from 3.7% for 1995 due to economies of scale obtained over a larger domestic revenue base. International depreciation and amortization was 1.1% of international revenue for the year ended December 31, 1996, as the Company's international operations are less capital intensive than the Company's domestic operations. General and administrative expenses increased $43.5 million, or 150.5%, to $72.4 million, or 13.6% of revenue for the year ended December 31, 1996 from $28.9 million, or 13.2% of revenue for the year ended December 31, 1995. Domestic general and administrative expenses increased $12.5 million, or 43.3%, to $41.4 million, or 12.0% of domestic revenue, for 1996 from $28.9 million, or 13.2% of domestic revenue in 1995. The decrease in domestic general and administrative expenses as a percentage of domestic revenue is primarily the result of spreading overhead expenses over a broader revenue base. Included in domestic general and administrative expenses for 1996 and 1995 are salaries and bonuses for employees of the Pooled Companies of approximately $6.1 million and $3.8 million, respectively. International general and administrative expenses were $31.0 million, or 16.5% of international revenue, for the year ended December 31, 1996. Operating income increased $30.3 million, or 130.6%, to $53.5 million, or 9.9% of revenue, for the year ended December 31, 1996 from $23.2 million, or 10.6% of revenue, for the year ended December 31, 1995. The decline in operating income as a percentage of revenue was due to the decline in domestic gross margins in 1996 and bonuses earned by employees of the Pooled Companies. Interest expense increased $6.6 million, or 124.5%, to $11.9 million for the year ended December 31, 1996 from $5.3 million for the year ended December 31, 1995 primarily due to borrowings used for equipment purchases and to fund investments in unconsolidated companies, offset in part by the conversion of the Company's 12% Subordinated Convertible Debentures into Common Stock on June 30, 1996. As a result of the decision to accelerate the disposal of certain non-core real estate assets and other investments, the Company recorded $23.1 million in special charges during the year ended December 31, 1995. The Company recorded a special charge of $15.4 million in the third quarter of 1995 to adjust the carrying values of its real estate investments to estimated net realizable value based on offers received by the Company to dispose of certain real estate in a bulk transaction. The original value assigned to the real estate investments contemplated the disposition of the properties on an individual basis and no consideration had previously been given to a bulk sale. In the fourth quarter of 1995, the Company recorded an additional charge of $7.7 million to reflect the value realized upon a sale of certain real estate and the Company's preferred stock investment in early 1996. These assets were sold at prices and in a manner designed to facilitate their immediate disposal so that the Company could concentrate its resources on its core telecommunications construction business. Income from continuing operations after a pro forma tax provision increased to $33.2 million, or 6.2% of revenue, for the year ended December 31, 1996 from $0.2 million for the year ended December 31, 1995 which included the special charge of $23.1 million. In the third quarter of 1995, the Company adopted a plan to dispose of certain non-core businesses acquired as a result of the acquisition of Burnup & Sims in March 1994. See Note 13 of Notes to Consolidated Financial Statements. These businesses included the operations of a printing company, a theater chain and an uninterrupted power supply device assembler. During 1995, the Company sold the assets of the theater chain and the assembler. The two transactions netted a gain of $7.4 million after tax. The remaining theater operations have been closed and are currently being marketed for sale for the underlying real estate value. Based on the estimated net realizable value of these businesses, a loss on disposition of approximately $6.4 million, net of tax, relating to the remaining discontinued operations was recorded in 1995. The Company sold the printing company in January 1997 for its carrying value. Financial Condition, Liquidity and Capital Resources The Company's primary liquidity needs are for working capital, to finance acquisitions and capital expenditures and to service the Company's indebtedness. The Company's primary sources of liquidity have been cash flow 15 from operations, borrowings under revolving lines of credit and the proceeds from the sale of investments and non-core assets. Net cash provided by operating activities for the year ended December 31, 1997 was $23.1 million, compared to $41.9 million for the year ended 1996. This decrease was due to fluctuations in working capital, particularly a reduction of accounts payable balances companywide and an increase in accounts receivable and unbilled revenue from Brazilian operations, offset by an increase in net income to $42.7 million as compared to net income of $35.9 million in the comparative 1996 period. Net cash provided by the sale of investments and non-core assets amounted to $29.6 million for 1997 compared to $9.4 million for 1996. The Company invested cash, net of cash acquired, in acquisitions and investments in unconsolidated companies totaling $50.2 million during 1997 compared to $6.2 million in 1996. During 1997, the Company made capital expenditures of $23.6 million, primarily for machinery and equipment used in the production of revenue, compared to $8.4 million in 1996. As of December 31, 1997, working capital totaled $123.7 million, compared to working capital of $136.2 million at December 31, 1996 excluding a note receivable of $29.0 million which was converted into an investment, a portion of which was sold in December 1997. See Note 2 of Notes to Consolidated Financial Statements. Included in working capital are net assets of discontinued operations of $4.2 million and real estate held for sale totaling $10.9 million. In December 1997, the Company sold its indirect investment in Conecel for $20.0 million in cash and the right to receive shares of Conecel non-voting common stock. The Company will have certain registration rights with respect to the Conecel common stock that it receives. A gain of $4.4 million, net of tax, was recognized based on the percent of cash received to the total transaction value. In September 1997, the Company agreed to sell a portion of its interest in Supercanal for $20.0 million in cash. In January 1998, the Company elected to retain its entire interest in Supercanal and terminated the agreement. The Company continues to pursue a strategy of growth through acquisitions and internal expansion. In July 1997, the Company closed its acquisition of 51% of MasTec Inepar for stock and $29.4 million in cash payable over eleven months. In addition, in connection with its acquisition of Sintel, the Company is required to make payments of 1.8 billion pesetas (approximately $11.8 million at the exchange rate in effect at December 31, 1997) on each of December 31, 1997 and 1998. The Company has paid a portion of the December 31, 1997 payment, with the remaining amounts to be paid pending resolution of offsetting amounts between the Company and Telefonica. See Note 2 of Notes to Consolidated Financial Statements. The Company believes that cash generated from operations, borrowings under its $125.0 million revolving credit facility with a syndicate of banks led by BankBoston, N.A. (the "Credit Facility"), and proceeds from the sale of investments and non-core assets will be sufficient to finance these payments, as well as the Company's working capital needs, capital expenditures and debt service obligations for the foreseeable future. Future acquisitions are expected to be financed from these sources, as well as other external financing sources to the extent necessary, including the issuance of equity securities and additional borrowings. In June 1997, the Company refinanced its domestic credit facility with the Credit Facility. Borrowings under this facility may be used for domestic acquisitions, working capital, capital expenditures and general corporate purposes. At December 31, 1997, borrowings under this facility totaled approximately $83.0 million and standby letters of credit issued pursuant to this facility totaled approximately $3.5 million. In January 1998, the Company sold $200.0 million principal amount of 7.75% Senior Subordinated Notes (the "Notes") due 2008 with interest due semi-annually. The Company repaid all outstanding borrowings under the Credit Facility other than outstanding letters of credit with a portion of the proceeds of the Notes, as a result of which the Company has approximately $121.5 million of borrowing capacity under the Credit Facility. The Credit Facility and the Notes contain certain covenants which, among other things, restrict the payment of dividends, limit the Company's ability to incur additional debt, create liens, dispose of assets, merge or consolidate with another entity or make other investments or acquisitions, and provide that the Company must maintain minimum amounts of stockholders' equity and financial ratio coverages, requiring, among other things, minimum ratios at the end of each fiscal quarter of debt to earnings, earnings to interest expense and accounts receivable to trade payables. See Note 5 of Notes to Consolidated Financial Statements. The Company conducts business in several foreign currencies that are subject to fluctuations in the exchange rate relative to the U.S. dollar. The 16 Company does not enter into foreign exchange contracts. It is the Company's intent to utilize foreign earnings in the foreign operations for an indefinite period of time. In addition, the Company's results of operations from foreign activities are translated into U.S. dollars at the average prevailing rates of exchange during the period reported, which average rates may differ from the actual rates of exchange in effect at the time of the actual conversion into U.S. dollars. The Company currently has no plans to repatriate significant earnings from its international operations. The Company's current and future operations and investments in certain foreign countries are generally subject to the risks of political, economic or social instability, including the possibility of expropriation, confiscatory taxation, hyper-inflation or other adverse regulatory or legislative developments, or limitations on the repatriation of investment income, capital and other assets. The Company cannot predict whether any of such factors will occur in the future or the extent to which such factors would have a material adverse effect on the Company's international operations. Year 2000 Management believes that a significant portion of its computer systems are year 2000 compliant and is in the process of assessing the balance of its systems. The Company intends to communicate with its customers, suppliers, financial institutions and others with which it does business to ensure that any year 2000 issue will be resolved timely. This issue affects computer systems that have time-sensitive programs that may not properly recognize the year 2000. If necessary modifications and conversions by those with which the Company does business are not completed timely or if all of the Company's systems are not year 2000 compliant, the year 2000 issue may have a material adverse effect on the Company's consolidated financial position, results of operations or liquidity. Seasonality The Company's domestic operations have historically been seasonally weaker in the first and fourth quarters of the year and have produced stronger results in the second and third quarters. Sintel has experienced seasonal weakness in the first quarter, but has produced relatively strong results in the fourth quarter. This seasonality is primarily the result of customer budgetary constraints and preferences and, to a lesser extent, the effect of winter weather on outside plant activities. Certain U.S. customers, particularly the RBOCs, tend to complete budgeted capital expenditures before the end of the year and defer additional expenditures until the following budget year. Telefonica, the Company's principal international customer, has historically rushed to complete budgeted expenditures in the last quarter. Revenue from MasTec Inepar is not expected to fluctuate seasonally. Impact of Inflation The primary inflationary factor affecting the Company's operations is increased labor costs. The Company has not experienced significant increases in labor costs to date. Competition for qualified personnel could increase labor costs for the Company in the future. As a result, of the Company's recent increase in international activities, it may, at times in the future, operate in countries that may experience high inflation. 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA See index to Consolidated Financial Statements. 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE None. 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT The information concerning directors and nominees for director of the Company set forth under the caption "Election of Directors" of the Company's Proxy Statement for the 1998 Annual Meeting of Stockholders (the "Proxy 17 Statement") is incorporated by reference into this Annual Report on Form 10-K. Information concerning the executive officers of the Company is included under the caption "Executive Officers of the Registrant" in reliance upon General Instruction G to Form 10-K and Instruction 3 of Item 40 l(b) of Regulation S-K. 11. EXECUTIVE COMPENSATION The information concerning executive compensation set forth under the caption "Executive Compensation" of the Company's Proxy Statement is incorporated by reference into this Annual Report on Form 10-K. 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT The information concerning security ownership set forth under the caption "Security Ownership of Certain Beneficial Owners and Management" of the Company's Proxy Statement is incorporated by reference into this Annual Report on Form 10-K. 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS The information set forth under the caption "Certain Relationships and Related Transactions" of the Company's Proxy Statement is incorporated by reference into this Annual Report on Form 10-K.
14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K Page Number Report of Independent Accountants F-1 Report of Independent Accountants F-2 (a)(i) Consolidated Financial Statements Statements of Income for the three years ended December 31, 1997 F-3 Balance Sheets at December 31, 1996 and 1997 F-5 Statements of Stockholders' Equity for the three years ended December 31, 1997 F-6 Statements of Cash Flows for the three years ended December 31, 1997 F-7 Notes to Consolidated Financial Statements F-12 (b) Report on Form 8-K On October 16, 1997, the Company filed a Form 8-K current report dated September 30, 1997 with the Securities and Exchange Commission reporting information under Item 5 thereof regarding the sale of 5.5% of Supercanal Holding, S.A. See Note 2 of Notes to Consolidated Financial Statements. On October 16, 1997, the Company filed a Form 8-K current report dated October 6, 1997 with the Securities and Exchange Commission reporting information under Item 5 thereof regarding the sale of its indirect equity interest in Consorcio Ecuatoriano de Telecomunicaciones S.A. (Conecel). Index to Exhibits E-1
18 REPORT OF INDEPENDENT ACCOUNTANTS To the Board of Directors and Stockholders of MasTec, Inc. Miami, Florida We have audited the accompanying consolidated balance sheets of MasTec, Inc. and subsidiaries as of December 31, 1997 and 1996, and the related consolidated statements of income, stockholders' equity, and cash flows for each of the three years in the period ended December 31, 1997. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits. We did not audit the financial statements of Sistemas e Instalaciones de Telecomunicacion, S.A. ("Sintel"), a wholly owned subsidiary, as of December 31, 1997 and for the year then ended which statements reflect total assets and revenue constituting 33.2% and 29.5%, respectively, of the related consolidated totals. Those statements were audited by other auditors whose report has been furnished to us, and our opinion, insofar as it relates to the amounts included for Sintel is based solely on the report of the other auditors. We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits and the report of the other auditors provides a reasonable basis for our opinion. In our opinion, based on our audits and the report of the other auditors, the consolidated financial statements referred to above present fairly, in all material respects, the consolidated financial position of MasTec, Inc. and subsidiaries as of December 31, 1997 and 1996, and the consolidated results of their operations and their cash flows for each of the three years in the period ended December 31, 1997, in conformity with generally accepted accounting principles. COOPERS & LYBRAND L.L.P. Miami, Florida March 10, 1998 F-1 REPORT OF INDEPENDENT ACCOUNTANTS To the Board of Directors and Stockholders of Sintel, S.A. We have audited the consolidated balance sheet of SINTEL, S.A. and subsidiaries ("Sintel") as of December 31,1997, the related consolidated statements of income and cash flows for the year then ended, and the notes to the financial statements, all expressed in Spanish pesetas. These financial statements are the responsibility of Sintel's management. Our responsibility is to express an opinion on these financial statements based on our audit. We conducted our audit in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion. Note 18 of the notes to the consolidated financial statements details Sintel's significant transactions with its main customer, Telefonica de Espana, S.A., performed under a contract in force for 1996-1998. Certain accounting practices of Sintel used in preparing the consolidated financial statements of Sintel conform with generally accepted accounting principles in Spain, but do not conform with accounting principles generally accepted in the United States. A description of these differences and the adjustments required to conform the consolidated financial statements to accounting principles generally accepted in the United States are set forth in Note 22. In our opinion, the consolidated financial statements referred to above present fairly, in all materials respects, the consolidated financial position of SINTEL, S.A. and subsidiaries as of December 31,1997, and the results of their operations and changes in financial position for the year then ended, in conformity with generally accepted accounting principles in the United States as set forth in Note 22. ARTHUR ANDERSEN L.L.P. Madrid, Spain February 25, 1998 F-2
MASTEC, INC. CONSOLIDATED STATEMENTS OF INCOME (In thousands except per share amounts) For the Years Ended December 31, (3) ------------------------------------ 1995 1996 1997 ---- ---- ---- Revenue $ 218,859 $ 534,068 $ 703,369 Costs of revenue 158,598 394,497 522,470 Depreciation and amortization 8,178 13,686 24,127 General and administrative expenses 28,918 72,392 90,995 ------- ------- ------- Operating income 23,165 53,493 65,777 Interest expense 5,306 11,940 11,920 Interest and dividend income 3,501 3,480 1,921 Special charges-real estate and investment write-downs 23,086 0 0 Other income, net 2,250 2,553 8,221 ------- ------- ------- Income from continuing operations before equity in (losses) earnings of unconsolidated companies, (benefit) provision for income taxes and minority interest 524 47,586 63,999 Equity in (losses) earnings of unconsolidated companies (300) 3,040 2,897 (Benefit) provision for income taxes (1,115) 14,665 21,015 Minority interest 161 93 (3,346) ------- ------- ------- Income from continuing operations 1,500 36,054 42,535 Discontinued operations: Income (loss) from discontinued operations, (net of applicable income taxes) 38 (177) 129 Net gain on disposal of discontinued operations net of a provision of $6,405 for 1995 to write down related assets to realizable values and including operating losses during phase-out period, net of applicable income taxes 2,493 66 0 ------- ------- ------- Net income $ 4,031 $ 35,943 $ 42,664 ======= ======= ======= Pro forma data (1): Income from continuing operations before equity in (losses) earnings of unconsolidated companies, pro forma provision for income taxes and minority interest $ 524 $ 47,586 $ 63,999 Equity in (losses) earnings of unconsolidated companies (300) 3,040 2,897 Pro forma provision for income taxes (1) 148 17,492 23,610 Minority interest 161 93 (3,346) Discontinued operations 2,531 (111) 129 ------- ------- ------- Pro forma net income $ 2,768 $ 33,116 $ 40,069 ======= ======= ======= Basic earnings per share: Weighted average common shares outstanding (2) 25,263 26,074 27,294 Pro forma earnings per share (1) (2): Continuing operations $ 0.01 $ 1.27 $ 1.46 Discontinued operations 0.10 0.00 0.01 ------- ------- ------- $ 0.11 $ 1.27 $ 1.47 ======= ======= ======= Diluted earnings per share: Weighted average common shares outstanding (2) 25,440 26,499 27,853 Pro forma earnings per share (1) (2): Continuing operations $ 0.01 $ 1.25 $ 1.43 Discontinued operations 0.10 0.00 0.01 ------- ------- ------- $ 0.11 $ 1.25 $ 1.44 ======= ======= ======= (1) Provision for income taxes and net income have been adjusted to reflect a tax provision for companies which were previously S corporations. F-3 (2) Amounts have been adjusted to reflect the three-for-two stock split effected on February 28, 1997 and shares issued in connection with two acquisitions accounted for under the pooling of interest method. (3) The historical amounts have been restated to reflect the results of operation of two 1997 acquisitions accounted for under the pooling of interest method.
The accompanying notes are an integral part of these consolidated financial statements. F-4
MASTEC, INC. CONSOLIDATED BALANCE SHEETS (In thousands) December 31, ------------ 1996 1997 ---- ---- ASSETS Current assets: Cash and cash equivalents $ 10,989 $ 6,063 Accounts receivable-net and unbilled revenue 318,967 346,596 Notes receivable 29,549 682 Inventories 5,737 8,746 Other current assets 35,529 32,109 ------- ------- Total current assets 400,771 394,196 ------- ------- Property and equipment-at cost 95,467 129,968 Accumulated depreciation (28,290) (43,859) ------- ------- Property and equipment-net 67,177 86,109 ------- ------- Investments in unconsolidated companies 30,209 48,160 Other assets 12,997 59,133 ------- ------- TOTAL ASSETS $ 511,154 $ 587,598 ======= ======= LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Current maturities of debt $ 39,916 $ 54,562 Accounts payable 166,993 166,843 Other current liabilities 28,651 49,043 ------- ------- Total current liabilities 235,560 270,448 ------- ------- Other liabilities 33,593 41,924 ------- ------- Long-term debt 125,018 94,495 ------- ------- Commitments and contingencies Stockholders' equity: Common stock 2,780 2,805 Capital surplus 149,083 99,235 Retained earnings 49,070 86,921 Accumulated translation adjustments (802) (3,466) Treasury stock (83,148) (4,764) ------- ------- Total stockholders' equity 116,983 180,731 ------- ------- TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 511,154 $ 587,598 ======= =======
The accompanying notes are an integral part of these consolidated financial statements. F-5
MASTEC, INC. CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY For the three years ended December 31, 1997 (In thousands) Common Stock Accumulated Issued Capital Retained Translation Treasury Shares Amount Surplus Earnings Adjustments Stock Total - --------------------------------------------------------------------------------------------------------------- Balance December 31, 1994 27,806 $ 2,780 $134,094 $ 12,531 $ 0 $(92,135) $ 57,270 Net income 4,031 4,031 Distributions by Pooled Companies (926) (926) Stock issued to 401(k) Retirement savings plan from treasury shares 92 146 238 Accumulated translation adjustment 1 1 - --------------------------------------------------------------------------------------------------------------- Balance December 31, 1995 27,806 2,780 134,186 15,636 1 (91,989) 60,614 Net income 35,943 35,943 Distributions by Pooled Companies (2,509) (2,509) Cumulative effect of translation (803) (803) Stock issued from treasury stock for options exercised 48 523 571 Tax benefit for stock option plan 513 513 Stock issued from treasury stock for an acquisition 8,844 2,201 11,045 Stock issued for debentures from treasury stock 5,492 6,117 11,609 - --------------------------------------------------------------------------------------------------------------- Balance December 31, 1996 27,806 2,780 149,083 49,070 (802) (83,148) 116,983 Net income 42,664 42,664 Distributions by Pooled Companies (4,813) (4,813) Cumulative effect of translation (2,664) (2,664) Stock issued from treasury stock for options exercised 206 979 1,185 Tax benefit for stock option plan exercises 1,538 1,538 Stock issued for acquisition 250 25 6,600 6,625 Stock issued from treasury stock for an acquisition 4,479 1,603 6,082 Stock issued for stock dividend from treasury stock (75,802) 75,802 0 Treasury stock sold 3,007 3,007 Tax benefit for pooling treated as asset sales for income tax purposes 10,124 10,124 - --------------------------------------------------------------------------------------------------------------- Balance December 31,1997 28,056 $ 2,805 $ 99,235 $86,921 $ (3,466) $ 4,764 $180,731 - ---------------------------------------------------------------------------------------------------------------
The accompanying notes are an integral part of these consolidated financial statements. F-6
MASTEC, INC. CONSOLIDATED STATEMENTS OF CASH FLOWS (In thousands) For the Years Ended December 31, ------------------------------------------- 1995 1996 1997 ---- ---- ---- Cash flows from operating activities: Net income $ 4,031 $ 35,943 $ 42,664 Adjustments to reconcile net income to net cash provided by operating activities: Minority interest (161) (93) 3,346 Depreciation and amortization 8,178 13,686 24,127 Equity in losses (earnings) of unconsolidated companies 300 (3,040) (2,897) Special charges-real estate and investments write downs 23,086 0 0 Gain on sale of assets (2,823) (365) (6,848) Changes in assets and liabilities net of effect of acquisitions and divestitures: Accounts receivable-net and unbilled revenue (24,760) (13,057) (39,950) Inventories and other current assets (2,207) (2,574) (331) Other assets (2,617) (4,657) (7,994) Accounts payable 10,807 26,460 12,188 Income and deferred taxes (8,338) 2,574 (4,276) Other current liabilities 451 (9,151) 8,208 Net assets of discontinued operations 963 1,148 (394) Other liabilities 1,032 (4,943) (4,740) ------- ------- ------- Net cash provided by operating activities 7,942 41,931 23,103 ------- ------- ------- Cash flows from investing activities: Capital expenditures (17,202) (8,386) (23,585) Cash acquired in acquisitions 148 1,130 2,106 Cash paid for acquisitions (1,750) (6,164) (48,910) Distributions from unconsolidated companies 245 1,365 2,130 Investments in unconsolidated companies (7,408) (1,212) (3,364) Investments in notes receivable (25,000) 0 0 Repayment of notes receivable 443 1,273 565 Repayment of stockholders loans receivable 1,800 0 780 Net proceeds from sale of assets and other non-core assets 24,269 9,404 29,628 ------- ------- ------- Net cash used in investing activities (24,455) (2,590) (40,650) ------- ------- -------
The accompanying notes are an integral part of these consolidated financial statements. F-7
MASTEC, INC. CONSOLIDATED STATEMENTS OF CASH FLOWS (continued) (In thousands) For the Years Ended December 31, ------------------------------------------- 1995 1996 1997 ---- ---- ---- Cash flows from financing activities: Proceeds from revolving credit facilities $ 46,125 $ 17,476 $ 57,321 Other borrowings 10,200 28,888 19,936 Repayment of notes payable to stockholders (2,500) 0 0 Debt repayments (40,091) (75,280) (65,147) Distributions by Pooled Companies (926) (2,509) (4,813) Proceeds from common stock issued from treasury 238 792 6,264 Financing costs (516) 0 (587) ------- ------- ------- Net cash provided by (used in) financing activities 12,530 (30,633) 12,974 ------- ------- ------- Net (decrease) increase in cash and cash equivalents (3,983) 8,708 (4,573) Net effect of translation on cash 0 (803) (353) Cash and cash equivalents - beginning of period 7,067 3,084 10,989 ------- ------- ------- Cash and cash equivalents - end of period $ 3,084 $ 10,989 $ 6,063 ======= ======= ======= Supplemental disclosures of cash flow information: Cash paid during the period for: Interest $ 5,302 $ 10,530 $ 9,058 Income taxes $ 7,527 $ 12,867 $ 10,432
The accompanying notes are an integral part of these consolidated financial statements. F-8
MASTEC, INC. CONSOLIDATED STATEMENTS OF CASH FLOWS (continued) (In thousands) Supplemental disclosure of non-cash investing and financing activities: For the Years Ended December 31, ------------------------------------------- 1995 1996 1997 ---- ---- ---- Acquisitions accounted for under purchase method of accounting: Fair value of assets acquired: Accounts receivable $ 167 $ 248,087 $ 20,482 Inventories 0 2,980 955 Other current assets 67 12,661 1,618 Property and equipment 2,688 13,148 19,257 Investments in unconsolidated companies 0 9,373 0 Real estate and other assets 50 6,385 3,820 ------- ------- ------- Total non-cash assets 2,972 292,634 46,132 ------- ------- ------- Liabilities 71 162,928 20,299 Long-term debt 93 78,966 2,153 ------- ------- ------- Total liabilities assumed 164 241,894 22,452 ------- ------- ------- Net non-cash assets acquired 2,808 50,740 23,680 Cash acquired 148 1,130 2,106 ------- ------- ------- Fair value of net assets acquired 2,956 51,870 25,786 Excess over fair value of assets acquired 0 4,956 44,905 ------- ------- ------- Purchase price $ 2,956 $ 56,826 $ 70,691 ======= ======= ======= Notes payable issued in acquisitions $ 800 $ 36,561 $ 130 Cash paid and common stock issued for acquisitions 1,750 17,340 60,354 Contingent consideration 406 2,250 9,907 Acquisition costs 0 675 300 ------- ------- ------- Purchase price $ 2,956 $ 56,826 $ 70,691 ======= ======= ======= Property acquired through financing arrangements $ 9,452 $ 8,550 $ 413 ======= ======= =======
The accompanying notes are an integral part of these consolidated financial statements. F-9 MASTEC, INC CONSOLIDATED STATEMENTS OF CASH FLOWS (continued) (In thousands) Supplemental disclosure of non-cash investing and financing activities (cont.) December 31, 1995 ---- Disposals: Assets sold: Accounts receivable $ 2,158 Inventories 1,770 Other current assets 22 Property and equipment 1,832 Other assets 4 ------- Total non-cash assets 5,786 Liabilities 1,878 Long-term debt 343 ------- Total liabilities 2,221 ------- Net non-cash assets sold $ 3,565 ======= Sale price $ 12,350 Transaction costs (521) Note receivable (450) ======= Net cash proceeds $ 11,379 ======= The accompanying notes are an integral part of these consolidated financial statements. F-10 MASTEC, INC. CONSOLIDATED STATEMENTS OF CASH FLOWS (continued) for the three years ended December 31, 1997 Supplemental disclosure of non-cash investing and financing activities: In 1995, the Company's purchase of a 33% interest in Supercanal was financed in part by the seller for $7 million. (See Note 2.) During 1995, MasTec issued $146,000 of common stock from treasury stock for purchases made by The MasTec, Inc. 401 (k) Retirement Savings Plan. Capital surplus was increased by $92,000. In 1996, the Company issued approximately 198,000 shares of common stock for an acquisition. Common stock was issued from treasury at a cost of $2.2 million. In 1996, the Company converted $11.6 million of its 12% convertible subordinated debentures into common stock. Common stock was issued from treasury at a cost of $6.1 million. (See Note 5.) In 1996, the Company's purchase of an additional 3% interest in Supercanal was financed in part by the sellers for $2 million. (See Note 2.) During 1996, MasTec issued $523,000 of common stock from treasury for stock option exercises. Capital surplus was increased by $48,000. In 1997, the Company issued approximately 173,000 shares of common stock for domestic acquisitions. Common stock was issued from treasury stock at a cost of approximately $1.6 million. (See Note 2 for non-cash transactions related to MasTec Inepar.) In July 1997, the Company converted a note receivable and accrued interest thereon totaling $29 million into stock of Conecel. (See Note 2.) The accompanying notes are an integral part of these consolidated financial statements. F-11 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS DECEMBER 31, 1997, 1996 AND 1995 1. NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES Nature of Business MasTec, Inc. (the "Company" or "MasTec") is one of the world's 1eading contractors specializing in the build-out of telecommunications and other utilities infrastructure. The Company's business consists of the design, installation and maintenance of the outside physical plant ("outside plant") for telephone and cable television communications systems, including the installation of aerial, underground and buried copper, coaxial and fiber optic cable networks and the construction of wireless antenna networks for telecommunications service companies such as local exchange carriers, competitive access providers, cable television operators, long-distance carriers, and wireless phone companies. The Company also installs central office equipment and designs, installs and maintains integrated voice, data and video local and wide area networks inside buildings ("inside wiring"). The Company believes it is the largest independent contractor providing telecommunications infrastructure construction services in the United States and Spain and one of the largest in Argentina, Chile, Brazil and Peru. The Company also provides infrastructure construction services to the electric power industry and other public utilities. The Company is able to provide a full range of infrastructure services to its telecommunications company customers. Domestically, the Company provides outside plant services to local exchange carriers such as BellSouth Telecommunications, Inc. ("BellSouth"), U.S. West Communications, Inc., SBC Communications, Inc., United Telephone of Florida, Inc. (a subsidiary of Sprint Corporation) and GTE Corp. At December 31, 1997, MasTec had 20 multi-year service contracts ("master contracts") with regional bell operating companies ("RBOCs") and other local exchange carriers to provide all of their outside plant requirements up to a specific dollar amount per job and within certain geographic areas. Internationally, the Company provides through its wholly owned subsidiary Sistemas e Instalaciones de Telecomunicacion, S.A. ("Sintel") outside plant services, turn-key switching system installation and inside wiring services to Telefonica de Espana, S.A. ("Telefonica") under three separate multi-year contracts similar to those in the U.S. which expire in 1998. In July 1997, the Company also began servicing the local telephone subsidiaries of Telecomunicacoes Brasileiras S.A., the Brazilian government-owned telecommunications system ("Telebras"), in Sao Paulo, Rio de Janeiro, Parana and other states in the more populous and developed Southern region of Brazil, as well as Companhia Riograndense de Telecomunicacoes, S.A. ("CRT"), the local telephone company in Rio Grande do Sul which is partly owned by Telefonica. The Company was formed through the combination of Church & Tower, Inc. ("Church and Tower") and Burnup & Sims Inc. ("Burnup & Sims"), two established names in the U.S. telecommunications and other utilities construction services industry. On March 11, 1994, the shareholders of Church & Tower acquired 65% of the outstanding common stock of Burnup & Sims in a reverse acquisition (the "Burnup Acquisition"). Following the change in control, the senior management of Burnup & Sims was replaced by Church & Tower management and the name of Burnup & Sims was changed to "MasTec, Inc." Church & Tower is considered the predecessor company to MasTec and, accordingly, the results of Burnup & Sims subsequent to March 11, 1994 are included in the results of the Company. In July and August 1997, Wilde Construction, Inc. and two related companies ("Wilde") and AIDCO, Inc. ("Aidco") and one related company were merged with and into the Company through an exchange of common stock. The mergers were accounted for as poolings of interest. Accordingly, the Company's consolidated financial statements include the results of Wilde and Aidco for all periods presented (see Note 2). Management's Estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Principles of Consolidation The Consolidated Financial Statements include MasTec, Inc. and its subsidiaries. All material intercompany accounts and transactions have been eliminated. Certain prior year amounts have been reclassified to conform to the current presentation. F-12 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS DECEMBER 31, 1997, 1996 AND 1995 (continued) Foreign Currency The financial position and results of operations of the Company's foreign subsidiaries are measured using local currency as the functional currency. The Company translates foreign currency financial statements by translating balance sheet accounts at the exchange rate on the balance sheet date and income statement accounts at the average exchange rate for the period. Translation gains and losses are recorded in stockholders' equity, and transaction gains and losses are reflected in income. Revenue Recognition Revenue and related costs for short-term construction projects (i.e., projects with duration of less than one month) are recognized as the projects are completed. Revenue generated by certain long-term construction contracts are accounted for by the percentage-of-completion method under which income is recognized based on the ratio of estimated cost incurred to total estimated contract cost. Losses, if any, on such contracts are provided for in full when they become known. Billings in excess of costs and estimated earnings on uncompleted contracts are classified as current liabilities. Any costs in excess of billings are classified as current assets (See Note 3). Work in process on contracts is based on work performed but not billed to customers as per individual contract terms. The Company also provides management, coordination, consulting and administration services for construction projects. Compensation for such services is recognized ratably over the term of the service agreement. Earnings Per Share In 1997, the Company adopted Statement of Financial Standards ("SFAS") No. 128, "Earnings per Share" issued by the Financial Accounting Standards Board "FASB" SFAS No. 128 requires the presentation of basic earnings per common share and diluted earnings per common share. Basic earnings per common share is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding. Diluted earnings per common share includes the diluting effect of stock options and warrants using the treasury stock method. The difference between the weighted average common shares outstanding used to calculate basic and diluted earnings relates to options assumed exercised which were 177,000, 425,000 and 559,000 at December 31, 1995, 1996 and 1997, respectively. Cash and Cash Equivalents The Company considers all short-term investments with maturities of three months or less when purchased to be cash equivalents. The Company places its temporary cash investments with high credit quality financial institutions. At times, such investments may be in excess of the F.D.I.C. insurance limits. The Company has not experienced any loss to date on these investments. Inventories Inventories (consisting principally of material and supplies) are carried at the lower of first-in, first-out cost or market. Property and Equipment, Net Property and equipment are recorded at cost, less accumulated depreciation. Depreciation is provided using the straight-line method over the estimated useful life of the assets as follows: buildings and improvements -- 5 to 20 years, and machinery and equipment -- 3 to 7 years. Leasehold improvements are amortized over the shorter of the term of the lease or the estimated useful lives of the improvements. Expenditures for repairs and maintenance are charged to expense as incurred. Expenditures for betterments and major improvements are capitalized. The carrying amounts of assets sold or retired and related accumulated depreciation are eliminated in the year of disposal and the resulting gains and losses are included in income. F-13 Investments The Company's investment in real estate located primarily in Florida, acquired in connection with the Burnup Acquisition, is stated at its estimated net realizable value. Investments in unconsolidated companies are accounted for following the equity method of accounting when significant influence by the Company exists (see Note 2). Accrued Insurance The Company is self-insured for certain property and casualty and worker's compensation exposure and, accordingly, accrues the estimated losses not otherwise covered by insurance. Income Taxes The Company records income taxes using the liability method. Under this method, the Company records deferred taxes based on temporary taxable and deductible differences between the tax bases of the Company's assets and liabilities and their financial reporting bases. A valuation allowance is established when it is more likely than not that some or all of the deferred tax assets will not be realized. Recent Accounting Pronouncements In June 1997, the FASB issued SFAS No. 130 "Reporting Comprehensive Income" which establishes standards for reporting and display of comprehensive income and its components (revenues, expenses, gains and losses) in a full set of general-purpose financial statements. This statement requires that an enterprise classify items of other comprehensive income by their nature in a financial statement and display the accumulated balance of other comprehensive income separately from retained earnings and additional paid-in capital in the equity section of a statement of financial position. This statement is effective for fiscal years beginning after December 15, 1997. The Company anticipates the effects of SFAS No. 130 will result in the disclosure of foreign currency translation adjustment as part of comprehensive income. In June 1997, the FASB issued SFAS No. 131 "Disclosure about Segments of an Enterprise and Related Information" which establishes standards for public business enterprises to report information about operating segments in annual financial statements and requires those enterprises to report selected information about operating segments in interim financial reports issued to shareholders. It also establishes the standards for related disclosures about products and services, geographic areas, and major customers. This statement requires a public business enterprise report financial and descriptive information about its reportable operating segments. The financial information is required to be reported on the basis that it is used internally for evaluating segment performance and deciding how to allocate resources to segments. Operating segments are components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. This statement is effective for financial statements for periods beginning after December 15, 1997. Management is currently evaluating the requirements of SFAS No. 131 to determine the extent of additional disclosure. 2. ACQUISITIONS AND INVESTING ACTIVITIES Domestic In July 1997, the Company completed the acquisition of Wilde, which provides telecommunications and cable television infrastructure services in Minnesota, North and South Dakota, Iowa, Nebraska and other bordering states. In August 1997, the Company completed the acquisition of Aidco, a company engaged in the installation and maintenance of voice, data and video local-area networks in the Western and Midwestern states. These acquisitions were consummated through stock-for-stock exchanges in which the Company issued approximately 1,371,000 shares of common stock. The Company has accounted for these mergers under the pooling of interest method. Accordingly, historical financial information has been restated to reflect the mergers as though they occurred as of the earliest period presented. These acquisitions are collectively referred to as the "Pooled Companies." F-14 During 1996 and 1997, the Company completed certain other acquisitions which have been accounted for under the purchase method of accounting and the results of operations have been included in the Company's consolidated financial statements from the respective acquisition dates. If the acquisitions had been made at the beginning of 1996 or 1997, pro forma results of operations would not have differed materially from actual results. Acquisitions made in 1997 were Kennedy Cable Construction, Inc., GJS Construction Co. d/b/a Somerville Construction and Shanco Corporation, three contractors servicing multiple systems operators such as Time Warner, Inc., Marcus Cable Company and Cox Communications, Inc. in a number of states including Alabama, Arizona, Florida, Georgia, New Jersey, New York, North Carolina, South Carolina and Texas; and R.D. Moody Associates, Inc., B&D Contractors of Shelby, Inc., Tele-Communications Corporation of Virginia, E.L. Dalton & Company, Inc., R.D. Moody Associates of Virginia, Inc. and Weeks Construction, Inc., six telecommunications and utility contractors with operations primarily in the southeastern and southwestern United States. Acquisitions made in 1996 were Carolina ComTec, Inc., a privately held company engaged in installing and maintaining voice, data and video networks, and Harrison-Wright Company Inc., one of the oldest telecommunications contractors in the southeastern United States. Intangible assets of approximately $23.6 million resulting from domestic business acquisitions are included in other long-term assets and principally consist of the excess acquisition cost over the fair value of the net assets acquired (goodwill). Goodwill associated with domestic acquisitions is being amortized on a straight-line basis over a range of 15-20 years. The Company periodically reviews goodwill to assess recoverability. Separate results of the Pooled Companies for the periods prior to the consummation of the combinations, including a pro forma adjustment for income taxes related to the Subchapter S status of certain Pooled Companies are as follows:
Pooled MasTec Companies Combined -------- --------- -------- Year ended December 31, 1995 Total revenue $174,583 $ 44,276 $218,859 Pro forma net (loss) income $ (609) $ 3,377 $ 2,768 Year ended December 31, 1996 Total revenue $472,800 $ 61,268 $534,068 Pro forma net income $ 30,065 $ 3,051 $ 33,116 Year ended December 31, 1997 Total revenue $659,439 $ 43,930 $703,369 Pro forma net income $ 35,398 $ 4,671 $ 40,069
International On April 30, 1996, the Company purchased from Telefonica 100% of the capital stock of Sintel, a company engaged in telecommunications infrastructure construction services in Spain, Argentina, Chile, and Peru. In Argentina, Chile and Peru, the Company currently operates through unconsolidated corporations in which it holds 50% interests. The purchase price for Sintel was Spanish Pesetas ("Pesetas") 4.9 billion (US$39.5 million at the then exchange rate of 124 Pesetas to one U.S. dollar). An initial payment of Pesetas 650 million ($5.1 million) was made at closing. An additional Pesetas 650 million ($4.9 million) was paid on December 31, 1996, with the balance of the purchase price, Pesetas 3.6 billion (US$27.5 million), due in two equal installments on December 31, 1997 and 1998. The Company has paid a portion of the December 31, 1997 installment in connection with the acquisition debt, with the remaining amount to be paid pending resolution of the offsetting amounts between the Company and Telefonica. Prior to April 30, 1996, as part of the terms of the purchase and sale agreement with Telefonica, Sintel sold certain buildings to Telefonica and Telefonica repaid certain tax credits and made a capital contribution to Sintel (collectively referred to as the "Related Transactions"). The total proceeds from the Related Transactions were approximately $41.0 million and resulted in an increase in equity of $28.1 million prior to the purchase. The assets and liabilities resulting from the acquisition are disclosed in the supplemental schedule of non-cash investing and financing activities in the Consolidated Statements of Cash Flows. The Sintel acquisition gave the Company a significant international presence. See Note 9 regarding geographic information. The following information presents the unaudited pro forma condensed results of operations for the year ended December 31, 1996 as if the Company's acquisition of Sintel and the Related Transactions had occurred on January 1, F-15 1996. The Sintel acquisition has been treated as a "purchase" as the term is used under generally accepted accounting principles. Management's estimate of fair value approximated that of the carrying value of the net assets acquired after reflecting a reserve for involuntary employee terminations of $12.4 million and deferred taxes of $4.3 million. The pro forma results, which include adjustments to increase interest expense resulting from the debt incurred pursuant to the Sintel acquisition ($700,000), offset by the reduction in interest and depreciation expenses resulting from the Related Transactions ($1 million) and a tax benefit at 35% is presented for informational purposes only and are not necessarily indicative of the future results of operations or financial position of the Company or the results of operations or financial position of the Company had the Sintel acquisition and the Related Transactions occurred January 1, 1996. Pro forma results of operations for the year ended December 31, 1996 (in thousands) Revenue $ 617,763 Income from continuing operations 36,423 Net income 36,312 Basic earnings per share: Continuing operations $ 1.40 Discontinued operations 0.00 -------- Net income $ 1.40 ======== Diluted earnings per share: Continuing operations $ 1.37 Discontinued operations .00 -------- Net income $ 1.37 ======== The pro forma results for the year ended December 31, 1996, include special charges incurred by Sintel related to a restructuring plan of $1.4 million. On July 31, 1997, the Company completed its acquisition of 51% of MasTec Inepar S/A-Sistemas de Telecomunicacoes ("MasTec Inepar"), a newly formed Brazilian telecommunications infrastructure contractor, for $29.4 million in cash payable over eleven months and 250,000 shares of common stock. Goodwill related to this acquisition at December 31, 1997 is $16.5 million and is included in other long-term assets. Goodwill is being amortized over 15 years. Investing Activities In July 1996, the Company contributed its 36% ownership interest in Supercanal, S.A. ("Supercanal"), a cable television operator in Argentina, to a holding company which also held the other shares of Supercanal. Concurrently, Multicanal, S.A., one of the leading cable television operators in Argentina acquired a 20% interest in the holding company for approximately $17 million in cash and provided significant additional financing to fund pending acquisitions. As a result of the Multicanal investment, the shareholders entered into an agreement whereby Multicanal was granted veto powers over certain fundamental board and stockholder decisions and, along with the majority shareholder, was given operational control of Supercanal. The Company's interest in the holding company was reduced to approximately 28.8% by this transaction and the Company no longer exercised significant influence in the operations of Supercanal. Accordingly, its investment is accounted for at cost and is included in investments in unconsolidated companies. At December 31, 1997, the Company's investment in Supercanal was $16.0 million. Based on the most recent available financial information, for the nine months ended September 30, 1997, Supercanal incurred losses of $19.5 million (unaudited) and reflected a shareholders' deficiency of $7.2 million (unaudited). In July 1995, the Company made a $25 million non-recourse term loan to Devono Company Limited, a British Virgin Islands corporation ("Devono"). The loan was collateralized by 40% of the capital stock of a holding company that owned 52.6% of the capital stock of Consorcio Ecuatoriano de Telecomunicaciones, S.A. ("Conecel"), one of two cellular phone operators in the Republic of Ecuador. In June 1997, the Company converted its loan and accrued interest into the stock of the holding company. In December 1997, the Company sold its investment in the holding company for $20.0 million in cash and 7.5 million F-16 shares of Conecel Class B non-voting stock valued at $25.0 million. Accordingly, the Company recognized a gain of $4.4 million net of tax based of the percent of cash received to the total transaction value. 3. ACCOUNTS RECEIVABLE-NET Accounts receivable are presented net of an allowance for doubtful accounts of $1.0 million, $3.1 million, and $3.1 million at December 31, 1995, 1996 and 1997, respectively. The Company recorded a provision for doubtful accounts of $.4 million, $1.2 million, and $0.3 million during 1995, 1996 and 1997 respectively. In addition, the Company recorded write-offs of $0.7 million, $0.1 million, and $0.7 million during 1995, 1996 and 1997, respectively and in 1996 and 1997 transferred from other accounts $0.9 million and $0.4 million, respectively. Accounts receivable include retainage which has been billed but is not due until completion of performance and acceptance by customers, and claims for additional work performed outside original contract terms. Retainage aggregated $4.1 million and $10.2 million at December 31, 1996 and 1997, respectively. Included in accounts receivable is unbilled revenue of $42.4 million and $97.5 million at December 31, 1996 and 1997, respectively. Such unbilled amounts represent work performed but not billable to customers as per individual contract terms. 4. PROPERTY AND EQUIPMENT Property and equipment is comprised of the following as of December 31, 1996 and 1997 (in thousands):
1996 1997 ---- ---- Land $ 7,583 $ 8,430 Buildings and improvements 6,754 9,474 Machinery and equipment 77,254 106,254 Office furniture and equipment 3,876 5,810 -------- -------- 95,467 129,968 Less-accumulated depreciation (28,290) (43,859) -------- -------- $ 67,177 $ 86,109 ======== ========
F-17 5. DEBT Debt is comprised of the following (in thousands):
At December 31, 1996 1997 ---- ---- Revolving Credit Facility, at LIBOR plus 1.00% (6.96% at December 31, 1997) $ 0 $ 83,010 Fleet Credit Facility at LIBOR plus 2.00%-2.25% and 7.75% -7.94% at December 31, 1996) 46,865 0 Revolving Credit Facility, at MIBOR plus 0.30% (7.0% at December 31, 1996 and 5.60% at December 31, 1997 due on November 1, 1998) 43,613 10,894 Other bank facilities, denominated in Spanish pesetas, at interest rates from 8.1% to 9.3% at December 31, 1996 and 5.65% - 6.75% at December 31, 1997 11,048 17,438 Notes payable for equipment, at interest rates from 7.5% to 8.5% due in installments through the year 2000 28,607 14,500 Notes payable for acquisitions, at interest rates from 7% to 8% due in installments through February 2000 32,253 23,215 Real estate mortgage notes, at interest rates from 8.5% to 8.53% 2,548 0 ------- ------- Total debt 164,934 149,057 Less current maturities (39,916) (54,562) ------- ------- Long term debt $ 125,018 $ 94,495 ======= =======
In June 1997, the Company obtained a $125.0 million revolving credit facility (the "Credit Facility"), from a group of financial institutions led by BankBoston, N.A. maturing on June 9, 2000 to replace the Fleet Credit Facility and certain other domestic debt. As a result of the prepayment of the Fleet Credit Facility, deferred financing costs and a termination fee totaling $690,000 were expensed in the second quarter of 1997. The Credit Facility is secured by a pledge of the stock of the Company's principal domestic subsidiaries and a portion of the stock of Sintel. Additionally, the Company has several credit facilities denominated in Pesetas, one of which is a revolving credit facility with a wholly-owned finance subsidiary of Telefonica. Interest on this facility accrues at MIBOR (Madrid interbank offered rate) plus .30%. At December 31, 1996 and 1997, the Company had $82.1 million (11.3 billion Pesetas) and $50.6 million (7.7 billion Pesetas), respectively of debt denominated in Pesetas, including $27.4 million and $22.3 million, respectively, remaining under the acquisition debt incurred pursuant to the Sintel acquisition (see Note 2). The Company has paid a portion of the December 31, 1997 installment in connection with the acquisition debt, with the remaining amount to be paid pending resolution of the offsetting amounts between the Company and Telefonica. On January 30, 1998, the Company sold $200.0 million, 7.75% senior subordinated notes (the "Notes") due in 2008 with interest due semi-annually. The net proceeds were used to repay amounts outstanding under the Credit Facility and for other corporate purposes. The Credit Facility and Notes contain certain covenants which, among other things, restrict the payment of dividends, limit the Company's ability to incur additional debt, create liens, dispose of assets, merge or consolidate with another entity or make other investments or acquisitions, and provide that the Company must maintain minimum amounts of stockholders' equity and financial ratio coverages, requiring, among other things, minimum ratios at the end of each fiscal quarter of debt to earnings, earnings to interest expense and accounts receivable to trade payables. In May 1996, the Company called its 12% convertible subordinated debentures (the "Debentures") effective June 30, 1996. The Debentures were converted into common stock increasing the number of shares outstanding by 690,456. At December 31, 1997 debt matures as follows: 1998 $ 54,562 1999 11,485 2000 83,010 -------- Total $ 149,057 ======= F-18 6. STOCK OPTION PLANS Shares underlying stock options and exercise prices have been adjusted to reflect the three-for-two stock split declared in 1997 by the Board of Directors. The Company's only stock option plan currently in effect is the 1994 Stock Incentive Plan (the "1994 Plan"). However, options which were outstanding under the Company's 1976 and 1978 stock option plans at the time of the Burnup Acquisition remain outstanding in accordance with the terms of the respective plans. Approximately 49,200 shares have been reserved for and may still be issued in accordance with the terms of such plans. Compensation expense of $589,000 and $14,700 was recorded in 1996 and 1997, respectively, related to the 1976 plan. The 1994 Plan authorizes the grant of options or awards of restricted stock up to 2,500,000 shares of the Company's common stock, of which 500,000 shares may be awarded as restricted stock. As of December 31, 1997, options to purchase 1,412,625 shares had been granted. Options become exercisable over a five year period in equal increments of 20% per year beginning the year after the date of grant and must be exercised within ten years from the date of grant. Options are issued with an exercise price no less than the fair market value of the common stock at the grant date. The Company also adopted the 1994 Stock Option Plan for Non-Employee Directors (the "Directors' Plan"). The Directors' Plan authorized the grant of options to purchase up to 600,000 shares of the Company's common stock to the non-employee members of the Company's Board of Directors. Options to purchase 112,500 shares have been granted to Board members through 1997. The options granted become exercisable ratably over a three year period from the date of grant and may be exercised for a period of up to ten years beginning the year after the date of grant at an exercise price equal to the fair market value of such shares on the date the option is granted. In addition, during 1994 options to purchase 150,000 shares of common stock at $3.83 per share were granted to a director outside the Directors' Plan in lieu of the Director's Plan and annual fees paid to the director. Compensation expense of $42,500 in connection with the issuance of this option is being recognized annually over the five year vesting period. The options are exercisable ratably over a five year period beginning the year after the date of grant and may be exercised for a period of up to ten years beginning the year after the date of grant. During 1997, options to purchase 209,000 shares of common stock at prices no less than the fair market value of the common stock at the date of grant ranging from $21.09 to $40.67 were granted to individuals outside the 1994 Plan subject to varying vesting schedules. F-19 The following is a summary of all stock option transactions:
Weighted Avg. Weighted Avg. Exercise Fair Value of Shares Exercise Price Price Options Granted ------ -------------- ----- --------------- Outstanding December 31, 1994 407,700 $ 4.62 $ 0.10 - $ 5.29 Granted 303,000 8.48 $ 6.83 - $ 8.92 $ 4.22 Exercised (3,150) 5.29 $ 0.10 - $ 5.29 Canceled (30,750) 3.94 $ 0.10 - $ 8.92 -------- Outstanding December 31, 1995 676,800 $ 6.33 $ 0.10 - $ 8.92 Granted 306,000 17.05 $ 7.42 - $ 28.58 $ 9.23 Exercised (82,200) 6.38 $ 0.10 - $ 8.92 Canceled (2,700) 5.29 $ 5.29 - $ 8.92 -------- Outstanding December 31, 1996 897,900 9.98 $ .10 - $ 28.58 Granted 992,725 24.96 $ 21.09 - $ 48.19 $ 19.97 Exercised (201,950) 5.58 $ 0.10 - $ 21.83 Canceled (78,850) 23.62 $ 5.29 - $ 31.63 -------- Outstanding December 31, 1997 1,609,825 19.10 $ 1.33 - $ 48.18 =========
The following table summarizes information about stock options outstanding at December 31, 1997:
Options Outstanding Options Exercisable -------------------------------------------- --------------------------- Number Wtd. Avg. Wtd. Avg. Number Wtd. Avg. Range of Outstanding Remaining Exercise Excercisable Exercise Exercise Prices at 12/31/97 Contractual Life Price at 12/31/97 Price --------------- ----------- ---------------- ----- ----------- ----- $ 1.33 - $ 8.16 251,250 6.9 $ 5.73 43,650 $ 5.63 $ 8.67 - $ 9.81 250,200 7.1 $ 9.09 92,550 $ 9.10 $ 21.09 - $ 26.50 839,400 9.7 $ 21.47 26,250 $ 21.52 $ 28.19 - $ 31.62 218,985 9.2 $ 31.55 750 $ 28.58 $ 34.79 - $ 48.19 49,990 9.3 $ 42.05 - $ - ------- ---- ----- ------- ------ $ 1.33 - $ 48.19 1,609,825 8.79 $ 19.10 163,200 $ 10.26 ========= ==== ===== ======= ======
In 1996, the Company adopted the disclosure provisions of SFAS No. 123, "Accounting for Stock-Based Compensation." Accordingly, the Company is required to disclose pro forma net income and earnings per share both for 1996 and 1997 as if compensation expense relative to the fair value of the options granted had been included in earnings. The fair value of each option grant was estimated using the BlackScholes option-pricing model with the following assumptions used for grants in 1996 and 1997, respectively: a five and six year expected life for 1996 and 1997, respectively; volatility factors of 51% and 82%, respectively; risk-free interest rates of 6.13% and 5.5%, respectively; and no dividend payments. Had compensation cost for the Company's options plans been determined and recorded in accordance with SFAS No. 123, the Company's net income and earnings per share would have been reduced to the pro forma amounts as follows: F-20
1996 1997 ---- ---- Net income: As reported, including pro forma tax adjustment $ 33,116 $ 40,069 Pro forma $ 32,262 $ 34,202 Basic earnings per share: As reported, including pro forma tax adjustment $ 1.27 $ 1.47 Pro forma $ 1.24 $ 1.25 Diluted earnings per share: As reported, including pro forma tax adjustment $ 1.25 $ 1.44 Pro forma $ 1.22 $ 1.23
The 1996 and 1997 pro forma effect on net income is not necessarily representative of the effect in future years because it does not take into consideration pro forma compensation expense related to grants made prior to 1995 and does not reflect a tax benefit related to the compensation expense as such benefit would be reflected directly in stockholders' equity given that the options are considered incentive stock options. 7. INCOME TAXES
The provision (benefit) for income taxes consists of the following (in thousands): 1995 1996 1997 ---- ---- ---- Current: Federal $ 5,541 $ 9,896 $ 9,606 Foreign 5,347 6,505 State and local (284) 1,535 1,670 ------ ------- ------- Total current 5,257 16,778 17,781 ------ ------- ------- Deferred: Federal (5,879) (1,895) 2,778 State and local (493) (218) 456 ------- ------- ------ Total deferred (6,372) (2,113) 3,234 ------- ------- ------ (Benefit) provision for income taxes (1,115) 14,665 21,015 Discontinued operations 135 (70) 80 ------- ------- ------ Total $ (980) $ 14,595 $ 21,095 ======= ======= ======
F-21 The tax effects of significant items comprising the Company's net deferred tax liability as of December 31, 1996 and 1997 are as follows (in thousands): 1996 1997 ---- ---- Deferred tax assets: Accrued self insurance $ 3,050 $ 2,100 Operating loss and tax credit carry forward 525 1,565 Accrual for disposal of discontinued operations 1,147 0 Intangible assets 9,471 All other 4,774 7,550 ------ ------- Total deferred tax assets 9,496 20,686 ------ ------- Deferred tax liabilities: Property and equipment 5,817 7,536 Asset revaluations 5,462 6,066 All other 1,718 3,871 ------ ------- Total deferred tax liabilities 12,997 17,473 Valuation allowance 500 1,376 ------- ------- Net deferred tax (liabilities) assets $ (4,001) $ 1,837 ======= =======
The net change in the valuation allowance for deferred tax assets was an increase of $876,000. Such change is attributed to $1,304,000 related to a net operating loss which if not used will expire between 2006-2009, and a decrease of $428,000 related to the utilization of net operating losses. Deferred tax assets of $2,096,000 and $1,164,000 for 1996 and 1997, respectively, have been recorded in current assets in the accompanying consolidated financial statements. A reconciliation of U.S. statutory federal income tax expense on the earnings from continuing operations is as follows: l995 1996 1997 ---- ---- ---- U.S. statutory federal rate applied to pretax income 35% 35% 35% State and local income taxes 0 2 2 Effect of dividend exclusion (49) 0 0 Effect of non-U.S. tax rates 0 (1) (1) Foreign loss producing no tax benefit 62 0 0 Adjustment of prior years' taxes (46) 0 0 Change in federal statutory tax rate 82 0 0 Change in state tax filing status (77) 0 0 Income from S corporations accounted for as poolings (240) (5) (4) Other 20 0 1 --- --- --- (Benefit) provision for income taxes (213)% 31% 33% ==== === ===
No provision was made in 1996 and 1997 for U.S. income taxes on the undistributed earnings of the foreign subsidiaries as it is the Company's intention to utilize those earnings in the foreign operations for an indefinite period of time. At December 31, 1997, undistributed earnings of the foreign subsidiaries amounted to $26.2 million. If the earnings of such foreign subsidiaries were not indefinitely reinvested, a deferred tax liability of $2.3 million would have been required. The Internal Revenue Service (the "IRS") has examined the tax returns of Burnup & Sims for the fiscal years ended April 30, 1989 through April 30, 1993. The Company has filed a protest with the appellate level of the IRS regarding assessments made for the years 1989 through 1991. Adjustments, if any, as a result of this audit will be recorded as an adjustment to purchase accounting. F-22 8. CAPITAL STOCK The Company has authorized 100,000,000 shares of common stock. At December 31, 1996 and 1997, approximately 27,806,000 and 28,056,000 shares of common stock were issued, 26,992,000 and 27,580,000 shares were outstanding (adjusted for the stock split and pooling transactions) (see Note 2), respectively, and 814,000 and 476,000 were held in treasury, at cost (after giving effect to the stock split paid in the form of a dividend from treasury stock), respectively. At December 31, 1996 and 1997, the Company had 5,000,000 shares of authorized but unissued preferred stock. 9. OPERATIONS BY GEOGRAPHIC AREAS The Company's principal source of revenue is derived from telecommunications infrastructure construction services in the United States, Spain and Brazil. The Company did not have significant international operations in 1995 accordingly, geographic information for 1996 and subsequent is presented below:
For the Year Ended December 31, ------------------------------ 1996 1997 ---- ---- Revenue Domestic $ 345,913 $ 420,976 International 188,155 282,393 ------- ------- Total $ 534,068 $ 703,369 ======= ======= Operating income Domestic $ 33,760 $ 44,327 International 19,733 21,450 ------- ------- Total $ 53,493 $ 65,777 ======= ======= Identifiable assets Domestic $ 147,065 $ 206,200 International 258,071 258,105 Corporate 106,018 123,293 ------- ------- Total $ 511,154 $ 587,598 ======= =======
There are no transfers between geographic areas. Operating income consists of revenue less operating expenses, and does not include interest expense, interest and other income, equity in earnings of unconsolidated companies, minority interest and income taxes. Domestic operating income is net of corporate general and administrative expenses. Identifiable assets of geographic areas are those assets used in the Company's operations in each area. Corporate assets include cash and cash equivalents, investments in unconsolidated companies, net assets of discontinued operations, real estate held for sale and notes receivable. 10. SIGNIFICANT CUSTOMERS AND CONCENTRATION OF CREDIT RISK The Company derives a substantial portion of its revenue from providing telecommunications infrastructure services to Telefonica, BellSouth and Telebras. For the year ended December 31, 1995, the Company derived 33% of its revenue from services performed for BellSouth. For the year ended December 31, 1996, approximately 31% and 13% of the Company's revenue was derived from services performed for Telefonica and BellSouth, respectively. For the year ended December 31, 1997, approximately 26%, 12% and 11% of the Company's revenue was derived from services performed for Telefonica, BellSouth and Telebras, respectively. Revenue generated by MasTec Inepar from Telebras is included from August 1, 1997 (See Note 2). Accounts receivable from the Company's two largest customers at December 31, 1996 and three largest for 1997 were $194.2 million and $192.0 million, respectively. Although the Company's strategic plan envisions diversification of its customer base, the Company anticipates that it will continue to derive a significant portion of its revenue in the future from Telefonica and its affiliates, BellSouth and Telebras. F-23 11. COMMITMENTS AND CONTINGENCIES In December 1990, Albert H. Kahn, a stockholder of the Company, filed a purported class action and derivative suit in Delaware state court against the Company, the then-members of its Board of Directors, and National Beverage Corporation ("NBC"), the Company's then-largest stockholder. The complaint alleges, among other things, that the Company's Board of Directors and NBC breached their respective fiduciary duties in approving certain transactions. In November 1993, Mr. Kahn filed a class action and derivative complaint against the Company, the then members of its Board of Directors, and Jorge L. Mas, Jorge Mas and Juan Carlos Mas, the principal shareholders of the Company. The 1993 lawsuit alleges, among other things, that the Company's Board of Directors and NBC breached their respective fiduciary duties by approving the terms of the acquisition of the Company by the Mas family, and that the Mas family had knowledge of the fiduciary duties owed by NBC and the Company's Board of Directors and knowingly and substantially participated in the breach of these duties. The lawsuit also claims derivatively that each member of the Company's Board of Directors engaged in mismanagement, waste and breach of fiduciary duties in managing the Company's affairs prior to the acquisition by the Mas Family. There has been no activity in either of these lawsuits in more than a year. The Company believes that the allegations in each of the lawsuits are without merit and intends to defend these lawsuits vigorously. In August 1997, the Company settled its lawsuit with BellSouth arising from certain work performed by a subcontractor of the Company from 1991 to 1993 for nominal consideration. In November 1997, Church & Tower filed a lawsuit against Miami-Dade County (the "County") in Florida state court alleging breach of contract and seeking damages exceeding $3.0 million in connection with the County's refusal to pay amounts due to Church & Tower under a multi-year agreement to perform road restoration work for the Miami-Dade Water and Sewer Department ("MWSD"), a department of the County, and the County's wrongful termination of the agreement. The County has refused to pay amounts due to Church & Tower under the agreement until alleged overpayments under the agreement have been resolved, and has counterclaimed against the Company seeking damages that the Company believes will not exceed $2.1 million. The County also has refused to award a new road restoration agreement for MWSD to Church & Tower, which was the low bidder for the new agreement. The Company believes that any amounts due to the County under the existing agreement are not material and may be recoverable in whole or in part from Church & Tower subcontractors who actually performed the work and whose bills were submitted directly to the County. The Company is a party to other pending legal proceedings arising in the normal course of business, none of which the Company believes is material to the Company's financial position or results of operations. In 1990, Trilogy Communications, Inc. filed suit against Excom Realty, Inc., a wholly owned subsidiary of the Company, for damages and declaratory relief. The Company counterclaimed for damages. On May 1, 1995, the Company settled its counterclaim for $1.3 million, which is recorded as other income in the accompanying consolidated financial statements. In connection with certain contracts, the Company has signed certain agreements of indemnity in the aggregate amount of approximately $87.5 million, of which approximately $37.3 million relate to the uncompleted portion of contracts in process. These agreements are to secure the fulfillment of obligations and performance of the related contracts. Federal, state and local laws and regulations govern the Company's operation of underground fuel storage tanks. The Company is in the process of removing, restoring and upgrading these tanks, as required by applicable laws, and has identified certain tanks and surrounding soil which will require remedial cleanups. F-24 12. FAIR VALUE For certain of the Company's financial instruments, including cash and cash equivalents, accounts and notes receivable, accounts payable and other liabilities, the carrying amounts approximate fair value due to their short maturities. Long-term floating rate debt is carried at amounts that approximate fair value. The Company uses letters of credit to back certain insurance policies. The letters of credit reflect fair value as a condition of their underlying purpose and are subject to fees competitively determined in the market place. The estimated fair values may not be representative of actual values of the financial instruments that could have been realized as of year end or that will be realized in the future. 13. DISCONTINUED OPERATIONS AND REAL ESTATE HELD FOR SALE In the third quarter of 1995, the Company determined to concentrate its resources and better position itself to achieve its strategic growth objectives by disposing of all of the general products segment that the Company acquired as part of the Burnup Acquisition. These operations and assets included Southeastern Printing Company, Inc. ("Southeastern"), Lectro Products, Inc. ("Lectro") and Floyd Theatres, Inc. ("Floyd Theatres"). As a result of the decision to accelerate disposal of these assets, the Company recorded a special charge in the third quarter of 1996 of $15.4 million to adjust the carrying values of its real estate investment to estimated net realizable value based on offers received by the Company to dispose of certain real estate investments in a bulk transaction. The original value assigned to the real estate investments contemplated the disposition of the properties on an individual basis and no considerations had previously been given to a bulk sale. In the fourth quarter of 1995, the Company recorded an additional charge of $7.7 million to reflect the value realized upon a sale of certain real estate and the Company's preferred stock investment in early 1996. These assets were sold at prices and in a manner designed to facilitate their immediate disposal so that the Company could concentrate its resources on its core telecommunications and other utilities construction business. In March 1995, the Company sold the indoor theater assets of Floyd Theatres for approximately $11.5 million. A gain of $1.5 million, net of tax, resulted from this transaction in the first quarter of 1995. In August 1995, the Company sold the stock of Lectro for $11.9 million in cash and a note receivable of $450,000. A gain of $5.9 million, net of tax, was recorded in the third quarter of 1995 related to the sale of Lectro. A loss of approximately $6.4 million, net of tax, relating to the disposition of these discontinued operations was recorded in the fourth quarter of 1995. In January 1997, the Company sold the assets of Southeastern at its carrying value for approximately $2.1 million in cash and a note for $500,000. As part of the acquisition of Harrison-Wright Company, Inc. (see Note 2), the Company purchased the assets of Utility Pre-cast, Inc. The Company intends to sell the pre-cast business and accordingly has reflected the net assets of approximately $4.2 million as a discontinued operation. Included in other current assets in the accompanying balance sheet is approximately $15.7 million and $10.9 million of real estate held for sale at December 31, 1996 and 1997, respectively. Discontinued operations include management's best estimates of the amounts expected to be realized on the sale of these assets. While the estimates are based on current negotiations, the amounts the Company will ultimately realize could differ materially in the near term from the amounts assumed in arriving at the loss on disposal of the discontinued operations. Summary operating results of discontinued operations, excluding net gains on disposal and estimated loss during the phase-out period, are as follows (in thousands):
1995 1996 1997 ---- ---- ---- Revenue $ 21,952 $ 12,665 $ 4,471 ====== ====== ====== Earnings (loss) before income taxes $ 58 $ (288) $ 209 Provision (benefit) for income taxes 20 (111) 80 ------ ------ ------ Net income (loss) from discontinued operations $ 38 $ (177) $ 129 ====== ====== ======
F-25 14. QUARTERLY FINANCIAL DATA (Unaudited) (Dollars in thousands, except earnings per share) First Second Third Fourth Quarter Quarter (2) Quarter (3) Quarter (4) Total ------- ---------- ---------- ---------- ----- 1996: Revenue $ 70,670 $ 122,964 $ 162,208 $ 178,226 $ 534,068 ======= ======= ======= ======= ======= Operating income $ 5,954 $ 10,194 $ 17,131 $ 20,214 $ 53,493 ======= ======= ======= ======= ======= Income from continuing operations, as reported $ 3,696 $ 5,689 $ 11,586 $ 15,083 $ 36,054 ======= ======= ======= ======= ======= Pro forma income from continuing operations (6) $ 3,371 $ 5,645 $ 10,752 $ 13,459 $ 33,227 (Loss) income from discontinued operations including gain (loss) on disposal, net of taxes (14) 27 163 (287) (111) ------- ------- ------- ------- ------- Pro forma net income $ 3,357 $ 5,672 $ 10,915 $ 13,172 $ 33,116 ======= ======= ======= ======= ======= Pro forma basic earnings per share (1) (5): Continuing operations $ 0.13 $ 0.22 $ 0.41 $ 0.50 $ 1.27 Discontinued operations 0.00 0.00 0.01 (0.01) 0.00 ------- ------- ------- ------- ------- $ 0.13 $ 0.22 $ 0.42 $ 0.49 $ 1.27 ======= ======= ======= ======= ======= Diluted earnings per share (1) (5): Continuing operations $ 0.13 $ 0.22 $ 0.40 $ 0.49 $ 1.25 Discontinued operations 0.00 0.00 0.01 (0.01) 0.00 ------- ------- ------- ------- ------- $ 0.13 $ 0.22 $ 0.41 $ 0.48 $ 1.25 ======= ======= ======= ======= ======= 1997: Revenue $ 138,290 $ 160,726 $ 201,117 $ 203,236 $ 703,369 ======= ======= ======= ======= ======= Operating income $ 15,704 $ 19,818 $ 22,319 $ 7,936 $ 65,777 ======= ======= ======= ======= ======= Income from continuing operations, as reported $ 9,571 $ 12,816 $ 13,832 $ 6,316 $ 42,535 ======= ======= ======= ======= ======= Pro forma income from continuing operations (6) $ 9,478 $ 12,001 $ 12,145 $ 6,316 $ 39,940 (Loss) income from discontinued operations including gain (loss) on disposal, net of taxes) (51) 123 46 11 129 -------- ------- ------- ------- ------- Pro forma net income $ 9,427 $ 12,124 $ 12,191 $ 6,327 $ 40,069 ======== ======= ======= ======= ======= Pro forma: Basic earnings per share (1) (5): Continuing operations $ 0.35 $ 0.44 $ 0.44 $ 0.23 $ 1.46 Discontinued operations 0.00 0.00 0.00 0.00 0.01 -------- ------- ------- ------- ------- $ 0.35 $ 0.44 $ 0.44 $ 0.23 $ 1.47 ======== ======= ======= ======= ======= Diluted earnings per share (1) (5): Continuing operations $ 0.35 $ 0.43 $ 0.43 $ 0.23 $ 1.43 Discontinued operations 0.00 0.00 0.00 0.00 0.01 -------- -------- ------- ------- -------- $ 0.35 $ 0.43 $ 0.43 $ 0.23 $ 1.44 ======== ======= ======= ======= ======== F-26 (1) Earnings per share amounts have been adjusted to reflect the three-for-two stock split declared effected on February 28, 1997 and shares issued in connection with two acquisitions accounted for under the pooling of interest method. (2) The Company acquired Sintel (see Note 2) on April 30, 1996. (3) In the third quarter of 1997, the Company commenced operations in Brazil (see Note 2). (4) In the fourth quarter of 1997, the Company sold, at a gain of $4.4 million net of tax, a portion of its investment in Conecel. See Note 2. (5) Earnings per share are computed independently for each of the quarters presented. Therefore, the sum of the quarterly per share data does not equal the total computed for the year due to changes in the weighted average number of common shares outstanding. (6) Amounts and earnings per share have been adjusted to reflect a pro forma tax provision for two acquisitions accounted for under the pooling of interest method which were previously S corporations.
F-27 SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on March 31, 1998. MasTec, Inc. (Registrant) ------------------------------------ Edwin D. Johnson Senior Vice President - Chief Financial Officer (Principal Financial and Accounting Officer) The undersigned directors and officers of MasTec, Inc. hereby constitute and appoint Edwin D. Johnson and Jose M. Sariego and each of them with full power to act without the other and with full power of substitution and resubstitution, our true and lawful attorneys-in-fact with full power to execute in our name and behalf in the capacities indicated below this Annual Report on Form 10-K and any and all amendments thereto and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission and hereby ratify and confirm all that such attorneys-in-fact, or any of them, or their substitutes shall lawfully do or cause to be done by virtue hereof. Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities indicated on March 31, 1998. _______________________________ ___________________________ Jorge Mas Joel-Tomas Citron Chairman of the Board, President and Director Chief Executive Officer (Principal Executive Officer) _______________________________ Jose S. Sorzano Director _______________________________ Arthur B. Laffer Director _______________________________ Eliot C. Abbott Director S-1 EXHIBIT INDEX 3.1 Certificate of Incorporation and By-laws of the Company, filed as Exhibit 3(i) to Company's Registration Statement on Form S-8 (File No. 33-55237) and incorporated by reference herein. 3.2 Certificate of Amendment to Certificate of Incorporation of the Company. 4.1 7 3/4% Senior Subordinated notes Due 2008 Indenture dated as of February 4, 1998, filed as Exhibit 4.2 to the Company's Registration Statement on Form S-4 (file No. 333-46361) and incorporated by reference herein. 10.1 Stock Option Agreement dated March 11, 1994 between the Company and Arthur B. Laffer as filed as Exhibit 10.6 to the Company's Form 10-K for the year ended December 31, 1995 and incorporated by reference herein. 10.2 Stock Option Agreement dated December 29, 1997 between the Company and Henry N. Adorno. 10.3 Stock Option Agreement dated December 29, 1997 between the Company and Joel-Tomas Citron. 10.4 Revolving Credit Agreement dated as of June 9, 1997 between the Company, certain of its subsidiaries, and Bank Boston, N.A. as agent. 10.5 Agreement dated July 21, 1997 between the Company and Inepar S/A Industrias e Construcoes. 21.1 Subsidiaries of the Company. 23.1 Consent of Arthur Andersen L.L.P. 23.2 Consent of Arthur Andersen L.L.P. 23.3 Consent of Arthur Andersen L.L.P. 23.4 Consent of Arthur Andersen L.L.P. 23.5 Consent of Arthur Andersen L.L.P. 23.6 Consent of Arthur Andersen L.L.P. 23.7 Consent of Arthur Andersen L.L.P. 23.8 Consent of Arthur Andersen L.L.P. 23.9 Consent of Arthur Andersen L.L.P. 23.10 Consent of Coopers & Lybrand L.L.P. 23.11 Consent of Coopers & Lybrand L.L.P. 23.12 Consent of Coopers & Lybrand L.L.P. 23.13 Consent of Coopers & Lybrand L.L.P. 23.14 Consent of Coopers & Lybrand L.L.P. 23.15 Consent of Coopers & Lybrand L.L.P. 23.16 Consent of Coopers & Lybrand L.L.P. 23.17 Consent of Coopers & Lybrand L.L.P. 23.18 Consent of Coopers & Lybrand L.L.P. 27.1 Financial Data Schedule - 1997 27.2 Financial Data Schedule - 1996 27.3 Financial Data Schedule - 1995



Exhibit 23.2

                            CERTIFICATE OF AMENDMENT
                         TO CERTIFICATE OF INCORPORATION
                                 OF MASTEC, INC.


         1. MasTec, Inc., a Delaware corporation (the "Corporation"), amends its

Amended and Restated  Certificate of Incorporation under Sections 141 and 242 of

the Delaware General Corporation Law as follows:

         The first  paragraph  of Article IV of the  Corporation's  Amended  and
         Restated  Certificate of  Incorporation  is deleted in its entirety and
         the following is substituted in its place:

                  The  total  number  of  shares  of  capital  stock  which  the
                  Corporation  shall have authority to issue is One Hundred Five
                  Million  (105,000,000)  shares,  of which One Hundred  Million
                  (100,000,000)  shares,  Ten Cents  ($.10) par value per share,
                  shall be  common  stock  ("Common  Stock"),  and Five  Million
                  (5,000,000)  shares,  One Dollar  ($1.00) par value per share,
                  shall be preferred stock
                  ("Preferred Stock").

         2. The foregoing  amendment to the Amended and Restated  Certificate of

Incorporation  of the Corporation was duly adopted by the Board of Directors and

by vote of the  stockholders  of the  Corporation on May 21, 1997, in accordance

with the applicable provisions of the Delaware General Corporation Law.

         3.       The capital of the Corporation will not be reduced under or by

reason of this amendment.

  EXECUTED: September 4, 1997.

                                  MASTEC, INC.

         [SEAL]

                             By:___________________________________
                                        JOSE M. SARIEGO, Senior Vice President






STATE OF FLORIDA  )
                                    ) SS
COUNTY OF DADE    )

         THE FOREGOING  instrument was  acknowledged and sworn to before me this
4th day of September,  1997 on behalf of MasTec, Inc. by Jose M. Sariego, Senior
Vice-President of the corporation.

                                                 -------------------------------
                                                 Notary Public


Exhibit 10.2


                             STOCK OPTION AGREEMENT

         MASTEC, INC., a Delaware corporation,  (the "Company"), grants to HENRY
N. ADORNO ("Optionee") an option (the "Option") to purchase One Hundred Thousand
(100,000) shares of Common Stock,  $.10 par value, of the Company (the "Stock").
The exercise  price under the Option  shall be $21.0938 per share of Stock.  The
Option to  purchase  the Stock shall vest on each of December  29,  1998,  1999,
2000, 2001 and 2002 in accordance with the following schedule:
First Year Second Year Third Year Fourth Year Fifth Year - ---------- ----------- ---------- ----------- ---------- 20,000 20,000 20,000 20,000 20,000
This option is not being issued under the Company's 1994 Incentive Stock Plan and shall not be treated as an incentive stock option as defined in Section 422A(b) of the Internal Revenue Code of 1986, as amended. 1. TERM OF OPTION. The term of this option shall end at the close of business on the earliest of the following dates: (a) Ten (10) years from the date of grant hereof; or (b) Upon termination of the Optionee's employment with the Company or its subsidiaries for any reason other than retirement, disability or death, or upon the Optionee's voluntary termination of employment with the Company; or (c) At the expiration of three months after termination of the Optionee's employment by reason of retirement or disability, provided that if the Optionee dies within such three month period sub-paragraph (d) shall apply; or (d) Upon the expiration of one year from the date of death of the Optionee. 2. EXERCISE OF OPTION. This option may not be exercised (i) at a time when the exercise hereof or the issuance or transfer of shares hereunder would constitute a violation of any federal or state law or regulation or any listing requirements of any national securities exchange or other appropriate exchange on which the Company's securities may be listed; or (ii) until one year from the date of the grant thereof, as heretofore provided. Thereafter the Optionee may exercise this option in cumulative annual equal installments during the term of the option. The Optionee may, for the term of the option: (a) exercise the option to purchase those number of shares listed under "First Year" beginning on the first year after the date of the grant hereof; (b) exercise the option to purchase those number of shares listed under "Second Year"; beginning on the second year after the date of the grant hereof; (c) exercise the option to purchase those number of shares listed under "Third Year"; beginning on the third year after the date of the grant hereof; (d) exercise the option to purchase those number of shares under "Fourth Year"; beginning on the fourth year after the date of the grant hereof; and (e) exercise the option to purchase those number of shares under "Fifth Year"; beginning on the fifth year after the date of the grant hereof. This option may be exercised at any time and from time to time in full or in part during its term (up to the amount of Stock then exercisable) upon written notice given by the Optionee or, in the event of the Optionee's death, by the person designated in the Optionee's will, or in the absence of such designation, by his legal representatives to the Treasurer of the Company, which shall (i) specify the number of shares to be purchased and (ii) contain, if directed by the Company, a representation by the Optionee that such shares are being acquired for his own account for investment and not with a view to, or for sale in connection with, the distribution of any part thereof and which shall be accompanied by payment in cash of shares of stock having a fair market value equal to the option price for the number of shares with respect to which the option is then exercised. An Optionee shall not be, or have any of the rights or privileges of, a shareholder of the Company in respect of any shares purchasable upon the exercise of an option unless and until a certificate or certificates representing such shares shall have been issued by the Company to or in the name of the Optionee. Certificates representing shares purchased by an Optionee shall be issued upon receipt by the Company of the full amount of the option price. 3. ASSIGNMENT. This option is not transferable by the Optionee otherwise than by will or the laws of descent and distribution, and is exercisable, during his lifetime, only by him. In the event of death of the Optionee, the person designated in his will, or in the absence of such delegation, his legal representative may exercise each option held by the deceased Optionee subject to clause (d) of paragraph 1 and paragraph 2, above. 4. RECAPITALIZATION. In the event of any increase or reduction in the amount of outstanding shares of Stock by reason of a stock split, stock dividend, combination of shares or recapitalization occurring after the effective date hereof the number and class of shares subject to this option and the option price shall be correspondingly adjusted by Compensation and Stock Option Committee of the Board of Directors ("Committee"). No adjustment shall be made by reason of the distribution of subscription rights on outstanding Stock. 5. CORPORATE TRANSACTIONS. In the event of a dissolution or liquidation of the Company or a merger or consolidation in which the Company is not the surviving corporation, the Committee may, at its sole discretion, recommend that the Board of directors take any of the actions specified in the Plan. 6. GOVERNING LAW. This option agreement shall be construed, administered and governed in all respects under and by the laws of the State of Delaware. 7. ADMINISTRATION. This option shall be exercised in accordance with such administration regulations as the Committee shall from time to time adopt. DATED: December 29, 1997. MASTEC, INC. By:______________________________ Jorge Mas, Chairman of the Board, President and Chief Executive Officer ACCEPTED: - ---------------------------- Henry N. Adorno



Exhibit 10.3


                       NONINCENTIVE STOCK OPTION AGREEMENT

                  A  Nonincentive  Stock Option (the "Option") is hereby granted
by MASTEC,  INC., a Delaware  corporation (the "Company"),  to JOEL-TOMAS CITRON
("Optionee"),  for and with respect to common  stock of the  Company,  par value
$.10 per  share  (the  "Common  Stock"),  subject  to the  following  terms  and
conditions:

                  1.     Option Grant.  Subject to the  provisions set forth 
herein, and in  consideration of the agreements of the Optionee herein provided,
the Company hereby grants to the Optionee an Option to purchase from the Company
the number of shares of Common Stock, at the purchase  price per share, and on 
the schedule, all as set forth below.  This  Option  shall not be treated as an
incentive stock option as defined in Section  422A(b) of the  Internal  Revenue
Code of 1986, as amended.

Number of Shares
Subject to Option:   10,000

Option Price Per Share:    $21.0938

Date of Grant:   December 29, 1997

Exercise Schedule:

             Number of Shares       Commencement      Expiration
            Subject to Option            Date            Date
            -----------------       ------------         ----
                  3,334             Dec. 29, 1998    Dec. 29, 2007
                  3,333             Dec. 29, 1999    Dec. 29, 2007
                  3,333             Dec. 29, 2000    Dec. 29, 2007

                  2.       General Terms and Conditions of Option.

                  (a)    The Option shall be subject to the following 
                         restrictions on exercise:

                           i. The Option shall not be  immediately  exercisable.
                  The  Option  shall  not be  exercisable,  in whole or in part,
                  prior to the expiration of one (1) year from the date of grant
                  except  in the  event of the  Optionee's  death,  or after the
                  expiration  of ten years from the date the Option was granted.
                  In  no  event  may  the  Option  be  exercised  prior  to  the
                  expiration  of six (6) months  from the date of grant.  To the
                  extent that the Option is not  exercised  within the  ten-year
                  period  of  exercisability,  it  shall  expire  as to the then
                  unexercised part.

                           ii. The Option shall not be exercisable  with respect
                  to a fractional share or with respect to the lesser of fifty 
                  (50) shares or the full number of shares then subject to the
                  Option.

                          iii. Except as provided in Section 3, the Option shall
                  not be exercisable in whole or in part unless the Optionee, at
                  the time the Optionee exercises the Option, is, and has been 
                  at all times since the date of grant of the Option, a director
                  of the Company.

                  (b)    Written  notice of an election to exercise  any portion
of the Option, specifying  the portion thereof being exercised and the exercised
date,  shall be given by the Optionee, or his personal representative  in the 
event of the Optionee's death, (i) by delivering such notice at the principal
executive  offices of the Company no later than the  exercise  date, or (ii) by 
mailing such notice, postage prepaid, addressed to the Secretary of the Company 
at the principal executive offices of the Company at least three business days
prior to the exercise date.

                  (c)    The Option may be exercised only by making payment in 
full for the shares of Common Stock being acquired thereunder at the time of 
exercise (including applicable withholding taxes, if any) by check or bank 
draft, or by tendering  to the Company Common Stock shares already  owned by the
person exercising the Option, which may include shares received as the result of
a prior exercise of the Option, and having a fair market value equal to the cash
exercise price applicable to such Option, or by tendering a combination of cash
and Common Stock shares as aforesaid.

                  (d)    In the event the Option shall be exercised in whole, 
this agreement shall be surrendered to the Company for cancellation.  In the 
event the Option shall be exercised in part, or a change in the number or 
designation of the Common Stock shall be made, this agreement shall be delivered
by the Optionee to the Company for the purpose of making appropriate notation 
thereon, or of otherwise reflecting, in such manner as the Company shall 
determine, the partial exercise or the change in the number or designation of 
the Common Stock.

                   3.      Termination  of  Service.  The  Option  shall  
terminate upon the termination, for any reason, of the Optionee's directorship 
with the Company, and no shares may thereafter be purchased under such Option,
except as follows:

                  (a)      Upon  retirement  as a director  of the  Company  
                  after at least six years of service,  the  unexpired  part of 
                  the Option held by the Optionee shall, to the extent otherwise
                  exercisable on such date, remain exercisable, in whole or in 
                  part, for a period of three (3) years following such 
                  retirement.

                  (b)      Upon termination of service as a director of the 
                  Company by reason of death or disability, the unexpired part
                  of the Option held by the Optionee, or in the case of death, 
                  the Optionee's executors, administrators, heirs or 
                  distributors, as the case may be, shall become immediately 
                  exercisable and shall remain exercisable, in whole or in part,
                  for a period of three (3) years after such termination.  
                  Disability  shall  mean an  inability  as  determined by the 
                  Board of Directors of the Company ("Board") to perform duties 
                  and services as a director of the Company by reason of a 
                  medically determinable physical or mental impairment, 
                  supported  by  medical evidence, which can be expected to last
                  for a continuous  period  of not  less  than six (6) months.

                  In the  event  the  Option  is  exercised  by  the  executors,
administrators,  heirs or distributees  of the estate of the deceased  Optionee,
the Company shall be under no obligation to issue Common Stock thereunder unless
and until the Company is  satisfied  that the person or persons  exercising  the
Option are the duly appointed legal  representative  of the deceased  Optionee's
estate or the proper legatees or distributees thereof.

                  In no event, however, may the Option be exercised (i) prior to
the  expiration  of six  months  from the date of grant,  or (ii) after ten (10)
years from the date it was granted.

                  4.       Change in Control. (a) Subject to the limitations set
forth in the last paragraph, in the event of a change in control of the Company,
(i) the Option shall immediately become exercisable in full, and (ii) the 
Optionee shall have the right  within one (1) year after such event to exercise 
the Option in full.

                  (b)      For  purposes  of this  Section 4, a "change  in  
                  control" shall be deemed to have occurred if at any time on 
                  or after the date hereof:

                           i.       there shall be consummated:

                                    (1)  any  consolidation  or  merger  of  the
                           Company  in  which the  Company is not the continuing
                           or  surviving   corporation   or   pursuant to which 
                           any shares of Common Stock are to be converted into 
                           cash, securities or other property, provided that the
                           consolidation   or   merger   is   not  with   a
                           corporation  which was a  wholly-owned subsidiary of 
                           the Company immediately before the consolidation or 
                           merger; or

                                    (2)  any  sale,  lease,  exchange  or  other
                                    transfer (in one  transaction or a series of
                                    related    transactions)    of    all,    or
                                    substantially  all,  of  the  assets  of the
                                    Company; or

                           ii.      the  shareholders  of  the  Company  approve
                           any  plan  or  proposal  for  the liquidation or 
                           dissolution of the Company; or

                           iii.     any "person,"  including a "group" as 
                           determined in accordance with  Sections 13(d) and 14
                           (d) of the Securities Exchange Act of 1934, as 
                           amended ("Exchange Act"), becomes the beneficial 
                           owner (within the meaning of Rule 13d-3 under the  
                           Exchange Act), directly or indirectly, of 33% or more
                           of the combined  voting power of the Company's  then
                           outstanding Common Stock,  provided that such person,
                           immediately  before  it  becomes  such  33%  or  more
                           beneficial   owner,   is  not   (a)  a   wholly-owned
                           subsidiary of the Company or (b) an individual,  or a
                           spouse or a child of such  individual,  that on March
                           12,  1994,  owned  greater  than 20% of the  combined
                           voting  power of such Common  Stock,  or (c) a trust,
                           foundation   or  other   entity   controlled   by  an
                           individual  or   individuals   described  in  Section
                           4(b)(3)(iii); or

                           iv.     individuals who constitute the Board on March
                           12, 1994 (the "Incumbent Board") cease for any reason
                           to constitute at least a majority thereof, provided 
                           that any person becoming a director subsequent to 
                           March 12, 1994, whose election, or nomination for 
                           election by the Company's shareholders, was approved
                           by a vote of at least three quarters of the directors
                           comprising the Incumbent  Board (either by a specific
                           vote or by  approval  of the proxy  statement  of the
                           Company  in which  such  person is named as a nominee
                           for director,  without  objection to such nomination)
                           shall be, for purposes of this clause iv,  considered
                           as though such person were a member of the  Incumbent
                           Board.

                  5.       Transferring of Option.  The Optionee's rights and 
interest may not be assigned or transferred in whole or in part either directly 
or by operation of law or otherwise (except in the event of the Optionee's 
death, by will or the laws of descent and distribution), including, but not by 
way of limitation, execution, levy, garnishment, attachment, pledge, bankruptcy
or in any other manner, and no such right or interest of the Optionee shall be 
subject to any obligation or liability of the Optionee.

                  6.       Option  Rights.  Neither the  Optionee nor any other 
person entitled to exercise the Option under the terms hereof shall be, or have 
any of the rights or privileges of, a shareholder of the Company in respect of 
any of the shares of Common Stock issuable on exercise of the Option, unless and
until the Option has been exercised  pursuant  to the terms hereof and the 
purchase price for such shares shall have been paid in full.

                  7.       Adjustment in the Event of Change in Stock. In the 
event of changes  in the outstanding Common Stock of the Company by reason of 
stock dividends, reverse split, subdivision, recapitalizations, mergers,
consolidations  (whether  or  not  the  Company  is  a  surviving  corporation),
split-ups,  combinations or exchanges of shares,  reorganization or liquidation,
an extraordinary dividend payable in cash or property, and the like, the number,
class and the price of shares of Common Stock subject to this outstanding Option
shall be  appropriately  adjusted  by the Board,  whose  determination  shall be
conclusive.

                  8.       Administration  of Option.  (a) The Option shall be 
exercised  in  accordance  with such administrative regulations as the Board 
shall from time to time reasonably adopt.

                  (b)  If  at  any  time  the  Board  shall  determine,  in  its
reasonable discretion, that the listing, registration or qualification of shares
upon any national  securities exchange or under any state or federal law, or the
consent or  approval  of any  governmental  regulatory  body,  is  necessary  or
desirable as a condition of, or in  connection  with the exercise of this option
hereunder,  the Option may not be exercised in whole or in part unless and until
such listing, registration,  qualification,  consent or approval shall have been
effected or obtained,  or otherwise  provided  for, free of any  conditions  not
acceptable to the Board in the exercise of its reasonable judgment.

                  9.       Investment Representation.  The  Board  may require  
the Optionee to furnish to the Company, prior to the issuance of any shares upon
the exercise of all or part of this Option, an agreement stating that the shares
acquired by him upon exercise are being  acquired for  investment and not with a
view to the sale or distribution hereof.

                  10.      Governing Law. The Option, and this agreement shall 
be construed, administered and governed in all respects under and by the laws of
the State of Delaware.





                  EXECUTED: December 29, 1997.

                                  MASTEC, INC.



                                   By: _________________________
                                       Jorge Mas, Chairman of the Board,
                                       President and Chief Executive Officer


                  The  undersigned  hereby accepts the foregoing  Option and the
terms and conditions hereof.



                                                   -----------------------------
                                                     Joel-Tomas Citron


such state or (B) have filed a notice of  business  activities  report  with the
appropriate  office or agency of such state for the current year; (vii) that are
payable in Dollars;  and (viii) that are not payable  from an office  outside of
the United States.

     Real Property.  All real property  heretofore,  now, or hereafter  owned or
leased by the Borrowers.

     Reimbursement Obligation.  The Borrowers' obligation to reimburse the Agent
and the Banks on account of any  drawing  under any Letter of Credit as provided
in ss.3.2.

     RCRA. See definition of Release.

     Release.   Shall  have  the   meaning   specified   in  the   Comprehensive
Environmental  Response,  Compensation  and  Liability  Act of 1980,  42  U.S.C.
ss.ss.9601 et seq. ("CERCLA") and the term "Disposal" (or "Disposed") shall have
the meaning specified in the Resource  Conservation and Recovery Act of 1976, 42
U.S.C.  ss.ss.6901  et seq.  ("RCRA") and  regulations  promulgated  thereunder;
provided,  that in the event  either  CERCLA or RCRA is amended so as to broaden
the meaning of any term defined thereby,  such broader meaning shall apply as of
the effective  date of such amendment and provided  further,  to the extent that
the  laws of a state  wherein  the  property  lies  establishes  a  meaning  for
"Release"  or  "Disposal"  which is broader than  specified in either  CERCLA or
RCRA, such broader meaning shall apply.

     Reserve  Rate.  For any day with respect to a LIBOR Loan,  the maximum rate
(expressed as a decimal) at which any lender  subject  thereto would be required
to maintain reserves under Regulation D of the Board of Governors of the Federal
Reserve System (or any subsequent or similar regulation relating to such reserve
requirements)  against  "Eurocurrency  Liabilities"  (as such term is defined in
Regulation D), if such liabilities were  outstanding.  The Reserve Rate shall be
adjusted  automatically  on and as of the  effective  date of any  change in the
Reserve Rate.

     Revolving Credit Loans.  Loans made by the Banks to the Borrowers  pursuant
to ss.2.1.

     Revolving Credit Notes.  The promissory  notes of the Borrowers  evidencing
the Revolving Credit Loans hereunder, dated as of the date of this Agreement and
in substantially the form of Exhibit A hereto.

     Senior Debt. Funded Debt minus Subordinated Debt.

     Sintel. Sistemas e Instalaciones de Telecomunicacion, S.A.

     Sintel Group. Sintel,  Sietel, S.A., Sintelar,  S.A., Sintel Peru, S.A. and
any Subsidiary of Sintel.

     Sintel  Stock  Pledge  Agreement.   The  stock  pledge  agreement  and  the
International   Pledge  Documents  (defined  therein)  among  the  International
Signatories  and the Agent for the  benefit  or in the name of the Banks in form
and substance satisfactory to the Agent.

     Stock Pledge  Agreements.  The U.S.  Stock Pledge  Agreement and the Sintel
Stock Pledge Agreement.

     Subordinated  Debt.  Indebtedness  incurred  by the  Parent  which has been
subordinated to the Obligations; provided that (a) at the time such Subordinated
Debt is  incurred,  no Default or Event of Default  has  occurred or would occur
(including under ss.8.1 hereof) as a result of such  incurrence,  and the Parent
shall have provided the Banks with a calculation of the Leverage Ratios required
by ss.8.1 hereof showing  compliance  therewith on a pro forma basis taking into
account the  incurrence of such  Subordinated  Debt,  and (b) the  documentation
evidencing  such  Subordinated  Debt shall have been  delivered to the Agent and
shall contain all of the following  characteristics:  (i) it shall be unsecured,
(ii) it shall  bear a market  rate of  interest,  (iii) it shall have an average
weighted  maturity  of at least  seven  (7)  years,  (iv) it shall  not  require
principal  repayments  thereof  prior to the  Maturity  Date,  (v) it shall have
financial covenants (including covenants relating to incurrence of indebtedness)
which are meaningfully  less  restrictive  than those set forth herein,  (vi) it
shall have no restrictions on the Parent's or any of its  Subsidiaries'  ability
to grant liens securing  indebtedness  ranking senior to such Subordinated Debt,
(vii) it shall permit the  incurrence of senior  indebtedness  under this Credit
Agreement  (and under any  refinancings  hereof) in a principal  amount at least
equal  to the  Total  Commitment  hereunder  at the time of  incurrence  of such
Subordinated  Debt minus any  mandatory  or  optional  reductions  thereof  plus
$25,000,000,  (viii) it may be cross-accelerated  with the Obligations and other
senior  indebtedness of the Borrowers (but shall not be  cross-defaulted  except
for  payment  defaults  which the senior  lenders  have not  waived)  and may be
accelerated upon bankruptcy,  (ix) it shall provide that (A) upon any payment or
distribution of the assets of the Parent or its  Subsidiaries  (including  after
the  commencement of a bankruptcy  proceeding) of any kind or character,  all of
the  Obligations  (including  interest  accruing after the  commencement  of any
bankruptcy  proceeding  at the rate  specified  for the  applicable  Obligation,
whether or not such interest is an allowable claim in any such proceeding) shall
be paid in full  prior to any  payment  being  received  by the  holders  of the
Subordinated  Debt and (B) until all of the Obligations  (including the interest
described in subclause (A) above) are paid in full, any payment or  distribution
to which the  holders of the  Subordinated  Debt would be  entitled  but for the
subordination  provisions  of the type  described in clauses (x) and (xi) hereof
shall be made to the holders of the  Obligations,  (x) it shall  provide that in
the event of a payment default under ss.12.1(a) or (b) hereof,  the Parent shall
not be required to pay the  principal  of, or any  interest,  fees and all other
amounts payable with respect to the Subordinated Debt until the Obligations have
been paid in full in cash,  (xi) it shall provide that in the event of any other
Event of Default,  the Banks shall be permitted to block  payments of principal,
interest,  fees and all other amounts  payable with respect to the  Subordinated
Debt for a period of 180 days, and (xii) it shall  acknowledge  that none of the
provisions  outlined in part (b) of this definition can be amended,  modified or
otherwise altered without the prior written consent of the Banks.

     Subsidiary. Any corporation,  association,  trust, or other business entity
of which the  designated  parent  shall at any time own  directly or  indirectly
through a  Subsidiary  or  Subsidiaries  at least a majority of the  outstanding
capital stock or other interest entitled to vote generally.

     Swing  Line  Loans.  Loans  made  by  BKB  to  the  Borrowers  pursuant  to
ss.2.11(a).

     Swing Line Note. The promissory note of the Borrowers to BKB evidencing the
Swing  Line  Loans  hereunder,  dated  as of the date of this  Agreement  and in
substantially the form of Exhibit B hereto.

     Swing Line Settlement.  The making or receiving of payments, in immediately
available  funds,  by the Banks to or from the Agent in accordance  with ss.2.11
hereof  to the  extent  necessary  to  cause  each  Bank's  actual  share of the
outstanding amount of the Loans to be equal to such Bank's Commitment Percentage
of the outstanding amount of such Loans, in any case when, prior to such action,
the actual share is not so equal.

     Swing Line Settlement Amount. See ss.2.11(b).

     Swing Line Settlement Date. See ss.2.11(b).

     Swing Line Settling Bank. See ss.2.11(b).

     Total Commitment. See ss.2.1.

     U.S. Stock Pledge  Agreement.  The stock pledge agreement among the Parent,
its U.S.  Subsidiaries (other than Excluded  Subsidiaries) and the Agent for the
benefit or in the name of the Banks in form and  substance  satisfactory  to the
Agent.

     U.S. Subsidiaries. Subsidiaries of the Parent which are organized under the
laws of the United  States of  America,  any state  thereof or the  District  of
Columbia.

     ss.1.2. Rules of Interpretation.

                  (a) A reference  to any document or  agreement  shall  include
         such document or agreement as amended,  modified or  supplemented  from
         time to  time in  accordance  with  its  terms  and the  terms  of this
         Agreement.

                  (b) The singular  includes the plural and the plural  includes
the singular.

                  (c)  A  reference  to  any  law  includes  any   amendment  or
modification to such law.

                  (d)  A  reference  to  any  Person   includes  its   permitted
successors and permitted assigns.

                  (e) Accounting  terms  capitalized  but not otherwise  defined
         herein  have  the  meanings  assigned  to  them by  generally  accepted
         accounting  principles  applied on a consistent basis by the accounting
         entity to which they refer.

                  (f) The words  "include,"  "includes" and  "including" are not
limiting.

                  (g) All terms not specifically  defined herein or by generally
         accepted accounting principles,  which terms are defined in the Uniform
         Commercial Code as in effect in the Commonwealth of Massachusetts, have
         the meanings assigned to them therein.

                  (h) Reference to a particular  "ss." refers to that section of
this Agreement unless otherwise indicated.

                  (i) The words  "herein,"  "hereof,"  "hereunder"  and words of
         like  import  shall refer to this  Agreement  as a whole and not to any
         particular section or subdivision of this Agreement.

     ss.2. THE REVOLVING CREDIT FACILITY.

     ss.2.1.  Commitment to Lend.  Subject to the terms and conditions set forth
in this Agreement,  each of the Banks severally  agrees to lend to the Borrowers
and the Borrowers may borrow,  repay,  and reborrow from time to time commencing
on the Closing Date and prior to the Maturity Date, upon notice by the Borrowers
to the Agent given in accordance with ss.2.6, its Commitment  Percentage of such
sums as are requested by the Borrowers,  provided that the outstanding amount of
Loans  (including  the Swing Line Loans) and the Maximum  Drawing  Amount of the
Letters of Credit shall not exceed a maximum  aggregate  amount  outstanding  of
$125,000,000  at any time,  as such  amount  may be reduced  pursuant  to ss.2.2
hereof (the  "Total  Commitment").  Each  request for a Loan or Letter of Credit
hereunder shall constitute a  representation  and warranty by the Borrowers that
the  conditions  set  forth in ss.9 and  ss.10,  as the case may be,  have  been
satisfied on the date of such request.

     ss.2.2. Reduction of Total Commitment.

                  (a) The  Borrowers  shall  have the right at any time and from
         time to time upon two (2) Business  Days' prior  written  notice to the
         Agent to reduce by  $10,000,000  or an  integral  multiple  thereof  or
         terminate  entirely the Total Commitment,  whereupon the Commitments of
         the Banks shall be reduced pro rata in accordance with their respective
         Commitment  Percentages  of the amount  specified in such notice or, as
         the case may be,  terminated.  The Agent will notify the Banks promptly
         after receiving any notice of the Borrowers  delivered pursuant to this
         ss.2.2.  Notwithstanding  the  foregoing,  at no  time  may  the  Total
         Commitment be reduced to an amount less than the sum of (i) the Maximum
         Drawing Amount, and (ii) all Loans then outstanding.

                  (b) No reduction or termination of the  Commitments  once made
         may be revoked;  the portion of the  Commitments  reduced or terminated
         may not be  reinstated;  and  amounts  in  respect  of such  reduced or
         terminated portion may not be reborrowed.

     ss.2.3. The Revolving Credit Notes; the Swing Line Note.

                  (a) The Revolving  Credit Loans shall be evidenced by separate
         promissory notes of the Borrowers in substantially  the form of Exhibit
         A hereto (each a "Revolving Credit Note"), dated as of the date hereof.
         One Revolving Credit Note shall be payable to the order of each Bank in
         a principal  amount equal to such Bank's  Commitment  or, if less,  the
         outstanding  amount of all  Revolving  Credit  Loans made by such Bank,
         plus interest accrued thereon, as set forth herein.

                  (b) The Swing Line Loans shall be  evidenced  by a  promissory
         note of the  Borrowers  in  substantially  the form of Exhibit B hereto
         (the "Swing Line Note"),  dated as of the date  hereof.  The Swing Line
         Note shall be payable to BKB in the principal  amount of $5,000,000 or,
         if less,  the  outstanding  amount of all Swing Line Loans made by BKB,
         plus interest accrued thereon, as set forth herin.

                  (c) The Borrowers  irrevocably  authorize each Bank to make or
         cause to be made, in connection with a Drawdown Date of any Loan, or at
         the time of receipt of any payment of principal on such Bank's Note(s),
         an appropriate notation on such Bank's records reflecting the making of
         such Loan or the  receipt  of such  payment  (as the case may be).  The
         outstanding  amount of the Loans set forth on such Bank's  record shall
         be prima  facie  evidence of the  principal  amount  thereof  owing and
         unpaid to such Bank,  but the  failure  to  record,  or any error in so
         recording,  any such  amount  shall not limit or  otherwise  affect the
         obligations  of the  Borrowers  hereunder  or  under  any  Note to make
         payments of principal of or interest on any Note when due.

     ss.2.4. Interest on Loans.

                  (a) The outstanding  principal  amount of the Revolving Credit
         Loans  shall bear  interest at the rate per annum equal to (i) the Base
         Rate, or (ii) at the Borrowers'  option as provided  herein,  the LIBOR
         Rate plus the Applicable LIBOR Margin.

                  (b) The outstanding  principal  amount of the Swing Line Loans
         shall bear interest at the rate per annum equal to the Applicable Swing
         Line Rate.

                  (c) Interest  shall be payable (i) quarterly in arrears on the
         first Business Day of the next succeeding  quarter,  commencing July 1,
         1997, on Base Rate Loans and Swing Line Loans,  (ii) on the last day of
         the applicable  Interest Period,  and if such Interest Period is longer
         than  three  (3)  months,  also  on the  last  day of the  third  month
         following the commencement of such Interest Period, on LIBOR Loans, and
         (iii) on the Maturity Date for all Loans.

     ss.2.5.  Election  of LIBOR Rate;  Notice of  Election;  Interest  Periods;
Minimum Amounts.

                  (a) At the Borrowers'  option,  so long as no Default or Event
         of Default has occurred and is then  continuing,  the Borrowers may (i)
         elect to convert any Revolving  Credit Loan or a portion thereof from a
         Base Rate Loan to a LIBOR Loan, (ii) at the time of any Loan and Letter
         of Credit Request,  specify that such requested  Revolving  Credit Loan
         shall be a LIBOR  Loan,  or (iii)  upon  expiration  of the  applicable
         Interest  Period,  elect to maintain  an  existing  LIBOR Loan as such,
         provided  that the  Borrowers  give  notice  to the Agent  pursuant  to
         ss.2.5(b)  hereof.  Upon  determining  any LIBOR Rate,  the Agent shall
         forthwith  provide notice  thereof to the Borrowers and the Banks,  and
         each such notice to the  Borrowers  and the Banks  shall be  considered
         prima facie correct and binding, absent manifest error.

                  (b) Three (3) LIBOR  Business  Days prior to the making of any
         LIBOR Loan or the conversion of any Base Rate Loan to a LIBOR Loan, or,
         in the case of an outstanding  LIBOR Loan,  the expiration  date of the
         applicable  Interest Period, the Borrowers shall give telephonic notice
         (confirmed by telecopy on the same LIBOR Business Day) to the Agent not
         later  than  11:00  a.m.  (Boston  time) of its  election  pursuant  to
         ss.2.5(a).  Each such notice  delivered to the Agent shall  specify the
         aggregate principal amount of the Revolving Credit Loans to be borrowed
         or maintained as or converted to LIBOR Loans and the requested duration
         of the Interest  Period that will be applicable to such LIBOR Loan, and
         shall be irrevocable  and binding upon the Borrowers.  If the Borrowers
         shall  fail to give  the  Agent  notice  of  their  election  hereunder
         together with all of the other  information  required by this ss.2.5(b)
         with respect to any Revolving  Credit Loan, such Loan shall be deemed a
         Base Rate Loan.  In the event that the  Borrowers  fail to provide  any
         such notice with respect to the continuation of any LIBOR Loan as such,
         then such LIBOR Loan shall be  automatically  converted  to a Base Rate
         Loan at the end of the then expiring Interest Period relating thereto.

                  (c)  Notwithstanding  anything  herein  to the  contrary,  the
         Borrowers  may not specify an Interest  Period that would extend beyond
         the Maturity Date.

                  (d)      All  Revolving  Credit  Loans  shall be in a  minimum
         amount of not less than $5,000,000 and in integral multiples of 
         $500,000 above such amount.

                  (e)      In no event shall the Borrowers have more than seven 
         (7) different  maturities of LIBOR Loans outstanding at any time.

     ss.2.6.  Requests for Revolving  Credit Loans.  The Borrowers shall give to
the Agent written notice in the form of Exhibit C hereto (or  telephonic  notice
confirmed by telecopy on the same  Business Day in the form of Exhibit C hereto)
of each Revolving Credit Loan requested  hereunder (a "Loan and Letter of Credit
Request") not later than (a) 9:00 a.m.  (Boston  time) on the proposed  Drawdown
Date of any Base Rate Loan,  or (b) three (3) LIBOR  Business  Days prior to the
proposed Drawdown Date of any LIBOR Loan. Each such notice shall be given by the
Parent as agent for the Borrowers and shall specify the principal  amount of the
Revolving  Credit Loan  requested and shall include a current Loan and Letter of
Credit  Request,  reflecting the Maximum Drawing Amount of all Letters of Credit
outstanding.  Each Loan and Letter of Credit  Request shall be  irrevocable  and
binding  on the  Borrowers  and shall  obligate  the  Borrowers  to  accept  the
Revolving  Credit Loan requested  from the Banks on the proposed  Drawdown Date.
Each of the  representations  and warranties  made by or on behalf of any of the
Borrowers to the Banks or the Agent in this Agreement or any other Loan Document
shall be true and correct in all material  respects when made and shall, for all
purposes  of this  Agreement,  be deemed to be repeated on and as of the date of
the  submission  of any Loan and Letter of Credit  Request  and on and as of the
Drawdown Date of any Loan  (including  Swing Line Loans) or the date of issuance
or renewal of any  Letter of Credit  (except to the extent of changes  resulting
from transactions contemplated or permitted by this Agreement and the other Loan
Documents and changes  occurring in the ordinary  course of business that do not
in the aggregate  have a material  adverse  effect on the  Borrowers  taken as a
whole,  or to the extent  that such  representations  and  warranties  expressly
relate to an earlier date).  The Agent shall  promptly  notify each Bank of each
Loan and Letter of Credit Request received by the Agent (i) not later than 12:00
p.m.  (Boston time) on the proposed  Drawdown  Date of any Base Rate Loan,  (ii)
three (3) LIBOR  Business Days prior to the proposed  Drawdown Date of any LIBOR
Loan to be made to the  Borrowers.  or (iii) on a monthly  basis with respect to
Letters of Credit.

     ss.2.7. Funds for Revolving Credit Loans.

                  (a) Not later  than 1:00 p.m.  (Boston  time) on the  proposed
         Drawdown  Date of any Revolving  Credit  Loans,  each of the Banks will
         make  available  to the  Agent,  at its  Head  Office,  in  immediately
         available funds, the amount of such Bank's Commitment Percentage of the
         amount of the requested  Revolving Credit Loans. Upon receipt from each
         Bank of such  amount,  and upon  receipt of the  documents  required by
         ss.ss.9 and 10 and the  satisfaction of the other  conditions set forth
         therein, to the extent applicable, the Agent will make available to the
         Borrowers  the  aggregate  amount of such  Revolving  Credit Loans made
         available to the Agent by the Banks on the Drawdown  Date.  The failure
         or refusal of any Bank to make  available to the Agent at the aforesaid
         time  and  place on any  Drawdown  Date the  amount  of its  Commitment
         Percentage  of the requested  Revolving  Credit Loans shall not relieve
         any other Bank from its several obligation  hereunder to make available
         to the Agent the amount of such other Bank's  Commitment  Percentage of
         any requested Revolving Credit Loans.

                  (b) The Agent may, unless notified to the contrary by any Bank
         prior to a Drawdown  Date,  assume that such Bank has made available to
         the Agent on such  Drawdown  Date the amount of such Bank's  Commitment
         Percentage  of the  Revolving  Credit Loans to be made on such Drawdown
         Date,  and the Agent may (but it shall not be required to), in reliance
         upon such  assumption,  make available to the Borrowers a corresponding
         amount.  If any Bank makes available to the Agent such amount on a date
         after such Drawdown Date, such Bank shall pay to the Agent on demand an
         amount equal to the product of (i) the average  computed for the period
         referred to in clause (iii) below,  of the  weighted  average  interest
         rate paid by the Agent for federal  funds  acquired by the Agent during
         each day included in such period,  times (ii) the amount of such Bank's
         Commitment  Percentage of such  Revolving  Credit Loans,  times (iii) a
         fraction, the numerator of which is the number of days that elapse from
         and  including  such  Drawdown  Date to the date on which the amount of
         such Bank's Commitment  Percentage of such Revolving Credit Loans shall
         become immediately available to the Agent, and the denominator of which
         is 365. A statement of the Agent submitted to such Bank with respect to
         any amounts owing under this paragraph  shall be prima facie  evidence,
         absent manifest error, of the amount due and owing to the Agent by such
         Bank.  If the  amount  of such  Bank's  Commitment  Percentage  of such
         Revolving  Credit Loans is not made available to the Agent by such Bank
         within three (3) Business Days  following such Drawdown Date, the Agent
         shall be entitled to recover such amount from the  Borrowers on demand,
         with interest thereon at the rate per annum applicable to the Revolving
         Credit Loans made on such Drawdown Date.

     ss.2.8.  Maturity  of  the  Loans;  Annual  Option  to  Extend.  The  Total
Commitment  shall  terminate  and all  Loans  shall  be due and  payable  on the
Maturity Date; provided,  however,  that such Total Commitment and Maturity Date
may be extended for  successive  annual  periods up to a final  Maturity Date of
June 9, 2002,  as provided  in this  ss.2.8 and at each Bank's sole  discretion,
upon the written request of the Borrowers.  A written  request,  if any, for the
extension  of the  Total  Commitment  and  Maturity  Date  shall be given by the
Borrowers to the Agent and the Banks not less than one-hundred twenty (120) days
prior to the Extension  Date.  Except as expressly  provided in this ss.2.8,  no
extension of the Total  Commitment  and then current  Maturity  Date pursuant to
this ss.2.8 shall be effective  unless all of the Banks shall have approved such
extension  by written  notice to the Agent.  If on or prior to ninety  (90) days
prior  to the  applicable  Extension  Date,  all of the  Banks  consent  to such
extension by written notice to the Agent, the Total Commitment and Maturity Date
automatically  shall be  extended  to that date which is one year later than the
then  current  Maturity  Date.  If on or prior to ninety  (90) days prior to the
applicable  Extension Date, any Bank (a "Declining Bank") shall have objected to
such  requested  extension  by  written  notice  to the  Agent or shall not have
delivered  written notice to the Agent  consenting to such requested  extension,
then the Borrowers or the Agent may, no later than such Extension Date,  replace
each such Declining  Bank if necessary so that, as of such  Extension  Date, the
Total Commitment is not less than  $100,000,000.  In no event shall the Maturity
Date be extended  beyond June 9, 2002;  nor shall the Total  Commitment  of such
extended facility be less than $100,000,000.

     ss.2.9.  Mandatory  Repayments of the Loans. If at any time the outstanding
amount of the Loans plus the Maximum Drawing Amount of all  outstanding  Letters
of Credit  exceeds  the Total  Commitment,  whether  by  reduction  of the Total
Commitment or otherwise,  then the Borrowers shall immediately pay the amount of
such excess to the Agent for  application to the Loans,  or if no Loans shall be
outstanding,   to  be  held  by  the  Agent  as  collateral   security  for  the
Reimbursement  Obligations,  provided,  however,  that  if the  amount  of  cash
collateral  held by the Agent  pursuant to this ss.2.9 exceeds the amount of the
Obligations, the Agent shall return such excess to the Borrowers.

     ss.2.10.  Optional  Prepayments or Repayments of Loans.  Subject to ss.4.8,
the Borrowers shall have the right,  at their  election,  to repay or prepay the
outstanding  amount of the  Loans,  as a whole or in part,  at any time  without
penalty or premium,  provided that such repayments or prepayments  shall be in a
minimum amount of not less than $5,000,000 and in integral multiples of $500,000
above such amount.  The Borrowers shall give the Agent, no later than 11:00 a.m.
(Boston  time) on the Business Day of such  proposed  prepayment  or  repayment,
written  notice (or  telephonic  notice  confirmed  in writing) of any  proposed
prepayment or repayment  pursuant to this ss.2.10,  specifying the proposed date
of prepayment or repayment of Loans and the principal amount to be paid.

     ss.2.11. Swing Line Loans; Settlements.

                  (a) Solely for ease of  administration  of the Loans, BKB may,
         but shall not be required  to, fund Base Rate Loans made in  accordance
         with the provisions of this  Agreement in amounts less than  $5,000,000
         ("Swing Line Loans") provided that the outstanding amount of Swing Line
         Loans  advanced by BKB  hereunder  shall not exceed  $5,000,000  at any
         time. Each Bank shall remain  severally and  unconditionally  liable to
         fund its  Commitment  Percentage of such Swing Line Loans on each Swing
         Line Settlement Date and, in the event BKB chooses not to fund all Base
         Rate Loans requested on any date, to fund its Commitment  Percentage of
         the  Base  Rate  Loans  requested,   subject  to  satisfaction  of  the
         provisions  hereof relating to the making of Base Rate Loans.  Prior to
         each Swing Line Settlement, all payments or repayments of the principal
         of, and  interest on, Swing Line Loans shall be credited to the account
         of BKB.

                  (b) The Banks  shall  effect a Swing Line  Settlement  of each
         Swing Line Loan on (i) the Business Day  immediately  following any day
         on which the Agent gives  notice of a Swing Line  Settlement,  (ii) the
         Business Day  immediately  following the Agent's  becoming aware of the
         existence of any Default or Event of Default,  (iii) the Maturity Date,
         and (iv) the Business Day  immediately  following  any day on which the
         outstanding  amount  of  Swing  Line  Loans  advanced  by  BKB  exceeds
         $5,000,000  (each such date, a "Swing Line Settlement  Date").  One (1)
         Business Day prior to each such Swing Line  Settlement  Date, the Agent
         shall  give  telephonic  notice  to the  Banks  of (A)  the  respective
         outstanding  amount  of  Loans  made by each  Bank as at the  close  of
         business on the prior day, (B) the amount that any Bank,  as applicable
         (a "Swing  Line  Settling  Bank"),  shall  pay to  effect a Swing  Line
         Settlement (a "Swing Line  Settlement  Amount") and (C) the portion (if
         any) of the aggregate Swing Line  Settlement  Amount to be paid to each
         Bank. A statement  of the Agent  submitted to the Banks with respect to
         any amounts owing hereunder shall be prima facie evidence of the amount
         due and owing. Each Swing Line Settling Bank shall, not later than 1:00
         p.m.  (Boston time) on each Swing Line Settlement  Date,  effect a wire
         transfer of immediately available funds to the Agent at its Head Office
         in the amount of such Bank's Swing Line  Settlement  Amount.  The Agent
         shall, as promptly as practicable  during normal business hours on each
         Swing Line  Settlement  Date,  effect a wire  transfer  of  immediately
         available funds to each Bank of the Swing Line Settlement  Amount to be
         paid to such  Bank.  All  funds  advanced  by any Bank as a Swing  Line
         Settling  Bank  pursuant to this  ss.2.11(b)  shall for all purposes be
         treated as a Base Rate Loan made by such Swing  Line  Settling  Bank to
         the  Borrowers,  and all funds  received  by any Bank  pursuant to this
         ss.2.11(b)  shall for all  purposes be treated as  repayment of amounts
         owed by the  Borrowers  with  respect  to Base Rate  Loans made by such
         Bank.  In the event  that any  Bankruptcy  Event  prevents a Swing Line
         Settling  Bank from making any Swing Line  Settlement  as  contemplated
         hereby,  such Swing Line Settling Bank will make such  dispositions and
         arrangements,   either   by  way   of   purchase   of   participations,
         distribution,  pro tanto assignment of claims, subrogation or otherwise
         as shall  result  in each  Bank's  share of the  outstanding  Revolving
         Credit  Loans  being  equal,  as  nearly  as may  be,  to  such  Bank's
         Commitment Percentage of the outstanding amount of the Revolving Credit
         Loans.

                  (c) The Agent may  (unless  notified  to the  contrary  by any
         Swing Line  Settling  Bank by 12:00 noon (Boston time) one (1) Business
         Day prior to the Settlement  Date) assume that each Swing Line Settling
         Bank has made  available (or will make  available by the time specified
         in ss.2.11(b)) to the Agent its Swing Line Settlement  Amount,  and the
         Agent  may (but  shall  not be  required  to),  in  reliance  upon such
         assumption,  make available to each  applicable Bank its share (if any)
         of the  aggregate  Swing  Line  Settlement  Amount.  If the Swing  Line
         Settlement Amount of such Swing Line Settling Bank is made available to
         the Agent by such Swing Line  Settling  Bank on a date after such Swing
         Line Settlement Date, such Swing Line Settling Bank shall pay the Agent
         on demand an amount equal to the product of (i) the  average,  computed
         for the period  referred  to in clause  (iii)  below,  of the  weighted
         average  annual  interest  rate  paid by the Agent  for  federal  funds
         acquired  by the Agent  during each day  included in such period  times
         (ii) such Swing Line  Settlement  Amount  times (iii) a  fraction,  the
         numerator of which is the number of days that elapse from and including
         such Swing Line  Settlement Date to but not including the date on which
         such Swing Line Settlement Amount shall become immediately available to
         the Agent,  and the  denominator  of which is 365. Upon payment of such
         amount such Swing Line Settling Bank shall be deemed to have  delivered
         its Swing Line Settlement  Amount on the Swing Line Settlement Date and
         shall become entitled to interest payable by the Borrowers with respect
         to such Swing Line Settling Bank's Swing Line  Settlement  Amount as if
         such share were  delivered on the Swing Line  Settlement  Date. If such
         Swing Line Settlement Amount is not in fact made available to the Agent
         by such Swing Line Settling Bank within three (3) Business Days of such
         Swing Line Settlement Date, the Agent shall be entitled to recover such
         amount from the Borrowers, with interest thereon at the Base Rate.

                  (d) After any Swing Line  Settlement  Date, any payment by the
         Borrowers of Swing Line Loans  hereunder  shall be allocated  among the
         Banks,  in  amounts  determined  so  as  to  provide  that  after  such
         application  and the related  Swing Line  Settlement,  the  outstanding
         amount of Loans of each Bank  equals,  as nearly as  practicable,  such
         Bank's Commitment Percentage of the aggregate amount of Loans.

     ss.3. LETTERS OF CREDIT.

     ss.3.1. Letter of Credit Commitments.

                  (a)  Subject  to the  terms  and  conditions  hereof  and  the
         execution and receipt of a Loan and Letter of Credit Request reflecting
         the  Maximum  Drawing  Amount of all Letters of Credit  (including  the
         requested  Letter of Credit)  and a Letter of Credit  Application,  the
         Agent, on behalf of the Banks and in reliance upon the agreement of the
         Banks  set  forth  in  ss.3.1(b)  and  upon  the   representations  and
         warranties of the Borrowers contained herein, subject to the provisions
         of ss.ss.2.6 and 19.2 hereof, agrees to issue, extend and renew for the
         account of the Borrowers one or more standby or documentary  letters of
         credit  (individually,  a "Letter of  Credit"),  in such form as may be
         requested  from  time to time by the  Borrowers  and  agreed  to by the
         Agent;  provided,  however,  that, after giving effect to such request,
         the aggregate Maximum Drawing Amount of all Letters of Credit issued at
         any time under this  ss.3.1(a)  shall not  exceed  $10,000,000,  and no
         Letter of Credit shall have an  expiration  date later than the earlier
         of (i) one (1) year after the date of  issuance of the Letter of Credit
         (which may incorporate  automatic renewals for periods of up to one (1)
         year,  provided  that  the  Agent  may,  upon 30  days'  notice  to the
         beneficiary, cancel such Letter of Credit which has been renewed beyond
         its initial  one (1) year term),  or (ii) thirty (30) days prior to the
         Maturity Date.

                  (b) Each Bank  severally  agrees  that it shall be  absolutely
         liable,  without  regard to the  occurrence  of any Default or Event of
         Default or any other condition precedent  whatsoever,  to the extent of
         such Bank's Commitment  Percentage  thereof,  to reimburse the Agent on
         demand for the amount of each draft paid by the Agent under each Letter
         of  Credit to the  extent  that such  amount is not  reimbursed  by the
         Borrowers  pursuant to ss.3.2 (such  agreement  for a Bank being called
         herein the "Letter of Credit Participation" of such Bank).

                  (c) Each such  payment  made by a Bank shall be treated as the
         purchase by such Bank of a  participating  interest  in the  Borrowers'
         Reimbursement  Obligation  under  ss.3.2  in an  amount  equal  to such
         payment.  Each Bank shall share in  accordance  with its  participating
         interest in any interest which accrues pursuant to ss.3.2.

     ss.3.2.  Reimbursement  Obligation of the Borrowers. In order to induce the
Agent to  issue,  extend  and  renew  each  Letter  of  Credit  and the Banks to
participate therein, the Borrowers hereby agree to reimburse or pay to the Agent
with respect to each Letter of Credit  issued,  extended or renewed by the Agent
hereunder as follows:

                  (a) on each date that any draft  presented under any Letter of
         Credit is honored  by the Agent or the Agent  otherwise  makes  payment
         with  respect  thereto,  (i) the amount paid by the Agent under or with
         respect  to such  Letter of  Credit,  and (ii) the amount of any taxes,
         fees,  charges or other costs and expenses  whatsoever  incurred by the
         Agent or any Bank in  connection  with any payment made by the Agent or
         any Bank under,  or with  respect to, such Letter of Credit,  provided,
         however,  that if the  Borrowers do not reimburse the Agent on the date
         the Agent makes  payment  with  respect to such Letter of Credit,  such
         amount shall, provided that a Bankruptcy Event has not occurred, become
         automatically a Revolving Credit Loan which is a Base Rate Loan; and

                  (b)  upon  the  Maturity  Date  or  the  acceleration  of  the
         Reimbursement  Obligations  with  respect  to all  Letters of Credit in
         accordance  with ss.12,  an amount  equal to the then  Maximum  Drawing
         Amount  of  all   Letters  of  Credit  and  any  unpaid   Reimbursement
         Obligations, which amount shall be held by the Agent for the benefit of
         the  Banks  and the  Agent  as cash  collateral  for all  Reimbursement
         Obligations,  provided,  however, that if the amount of cash collateral
         held by the Agent  pursuant  to this  ss.3.2  exceeds the amount of the
         Obligations, the Agent shall return such excess to the Borrowers.

     ss.3.3.  Obligations Absolute.  The Borrowers'  obligations under this ss.3
shall  be  absolute  and  unconditional  under  any  and all  circumstances  and
irrespective  of the  occurrence  of any  Default  or  Event of  Default  or any
condition precedent whatsoever or any setoff, counterclaim or defense to payment
which the  Borrowers  may have or have had  against  the Agent,  any Bank or any
beneficiary  of a Letter of Credit.  The Borrowers  further agree with the Agent
and the Banks that the Agent and the Banks shall not be responsible for, and the
Borrowers'  Reimbursement  Obligations  under  ss.3.2  shall not be affected by,
among  other  things,  the  validity  or  genuineness  of  documents  or of  any
endorsements  thereon,  even if such documents should in fact prove to be in any
or all respects  invalid,  fraudulent or forged, or any dispute between or among
the  Borrowers,  the  beneficiary  of any  Letter  of  Credit  or any  financing
institution  or other party to which any Letter of Credit may be  transferred or
any claims or defenses  whatsoever of the Borrowers  against the  beneficiary of
any Letter of Credit or any such  transferee.  The Agent and the Banks shall not
be  liable  for any  error,  omission,  interruption  or delay in  transmission,
dispatch  or  delivery  of  any  message  or  advice,  however  transmitted,  in
connection with any Letter of Credit.  The Borrowers agree that any action taken
or omitted by the Agent or any Bank under or in  connection  with each Letter of
Credit and the related  drafts and  documents,  if done in good faith,  shall be
binding upon the  Borrowers and shall not result in any liability on the part of
the Agent or any Bank to the Borrowers.

     ss.3.4.  Reliance by Agent. To the extent not inconsistent with ss.3.4, the
Agent shall be entitled to rely,  and shall be fully  protected in relying upon,
any Letter of Credit, draft, writing, resolution,  notice, consent, certificate,
affidavit,  letter,  cablegram,  telegram,  telecopy, telex or teletype message,
statement,  order or other document believed by it to be genuine and correct and
to have been  signed,  sent or made by the  proper  Person or  Persons  and upon
advice  and  statements  of legal  counsel,  independent  accountants  and other
experts selected by the Agent.

     ss.4. FEES, PAYMENTS, AND COMPUTATIONS; JOINT AND SEVERAL LIABILITY.

     ss.4.1. Fees.

                  (a) Commitment  Fee. The Borrowers  agree to pay to the Agent,
         for the accounts of the Banks,  a fee (the  "Commitment  Fee") equal to
         the Applicable  Commitment  Rate multiplied by the amount of the unused
         portion of the Total Commitment during each calendar quarter or portion
         thereof  from the date hereof to the  Maturity  Date (or to the date of
         termination  in  full  of  the  Total  Commitment,   if  earlier).  The
         Commitment  Fee shall be payable  quarterly in arrears on the first day
         of each calendar quarter for the immediately preceding calendar quarter
         commencing on July 1, 1997, with a final payment on the Maturity Date.

                  (b) Letter of Credit Fees. The Borrowers  shall pay in advance
         on the date of issuance of each Letter of Credit an issuance fee to the
         Agent for its  account  equal to one eighth of one  percent  (1/8%) per
         annum on the  Maximum  Drawing  Amount of each  Letter  of Credit  (the
         "Issuance  Fee").  The Borrowers shall also pay quarterly in advance on
         the first  Business Day of each fiscal quarter a fee to the Agent equal
         to the Applicable L/C Margin  multiplied by the Maximum  Drawing Amount
         of all  outstanding  Letters of Credit  (the  "Letter of Credit  Fee"),
         which fee shall be for the  accounts  of the Banks in  accordance  with
         their respective  Commitment  Percentages.  In addition to the Issuance
         Fee and the Letter of Credit Fee, the Borrowers shall pay to the Agent,
         for its own  account,  all  related  customary  administrative  fees in
         accordance with customary practice.

     ss.4.2. Payments.

                  (a)  All  payments  of  principal,   interest,   Reimbursement
         Obligations,  fees and any other  amounts due hereunder or under any of
         the other Loan Documents shall be made to the Agent, for the respective
         accounts of the Banks and the Agent, to be received at the Agent's Head
         Office in immediately  available  funds by 12:00 p.m.  (Boston time) on
         any due date.  If a payment  (other  than with  respect  to Swing  Line
         Loans) is received by the Agent at or before 12:00 p.m.  (Boston  time)
         on any Business  Day, the Agent shall on the same Business Day transfer
         in  immediately  available  funds to each of the  Banks  their pro rata
         portion of such payment in accordance with their respective  Commitment
         Percentages.  If such payment is received by the Agent after 12:00 p.m.
         (Boston time) on any Business  Day, such transfer  shall be made by the
         Agent to the applicable  Bank(s) on the next Business Day. In the event
         that the  Agent  fails to make such  transfer  to any Bank as set forth
         above,  the Agent  shall pay to such Bank on demand an amount  equal to
         the product of (i) the average,  computed for the period referred to in
         clause (iii) below, of the weighted  average interest rate paid by such
         Bank for funds  acquired by such Bank during each day  included in such
         period,   times  (ii)  the  amount  equal  to  such  Bank's  Commitment
         Percentage  of such payment,  times (iii) a fraction,  the numerator of
         which is the number of days that elapse from and  including the date of
         payment to and  including the date on which the amount due to such Bank
         shall become immediately available to such Bank, and the denominator of
         which is 365.

                  (b) All payments by the  Borrowers  hereunder and under any of
         the other Loan Documents  shall be made without setoff or  counterclaim
         and free and clear of and  without  deduction  for any  taxes,  levies,
         imposts,  duties, charges, fees, deductions,  withholdings,  compulsory
         loans,  restrictions  or  conditions  of any  nature  now or  hereafter
         imposed  or levied by any  jurisdiction  or any  political  subdivision
         thereof or taxing or other  authority  therein unless the Borrowers are
         compelled  by law to make such  deduction or  withholding.  If any such
         obligation  is imposed  upon the  Borrowers  with respect to any amount
         payable by them hereunder or under any of the other Loan Documents, the
         Borrowers  will pay to the Agent,  for the  account of the Banks or (as
         the case may be) the Agent, on the date on which such amount is due and
         payable  hereunder or under such other Loan Document,  such  additional
         amount in  Dollars  as shall be  necessary  to enable  the Banks or the
         Agent to receive the same net amount which the Banks or the Agent would
         have received on such due date had no such obligation been imposed upon
         the Borrowers,  provided  however that the foregoing  obligation to pay
         such additional amounts shall not apply:

                           (i) to any  payment to a Bank if such Bank is not, on
                  the date  hereof  (or on the date it becomes a Bank under this
                  Agreement) and on the date of any change in the lending office
                  of such Bank  identified  after  its  execution,  entitled  by
                  virtue of its status as a non-resident  alien to submit either
                  a Form  1001  (relating  to such  Bank and  entitling  it to a
                  complete  exemption  from  withholding  on all  interest to be
                  received by it  hereunder in respect of the  Revolving  Credit
                  Loans) or Form 4224  (relating  to all interest to be received
                  by such Bank  hereunder in respect of Revolving  Credit Loans)
                  of the U.S. Department of Treasury, or

                           (ii)  to  any  item  referred  to  in  the  preceding
                  sentence  that would not have been imposed but for the failure
                  by  such  Bank  to  comply  with   applicable   certification,
                  information,  documentation  or other  reporting  requirements
                  concerning the nationality, residence, identity or connections
                  of such Bank with the  United  States  if such  compliance  is
                  required by statute or  regulation  of the United  States as a
                  precondition to relief or exemption from such item.

                  The Borrowers will deliver promptly to the Agent  certificates
         or other valid vouchers for all taxes or other charges deducted from or
         paid with respect to payments made by the Borrowers  hereunder or under
         such other Loan Document.

     ss.4.3.  Computations.  All computations of interest on Base Rate Loans and
of Commitment Fees, Letter of Credit Fees or other fees shall,  unless otherwise
expressly  provided  herein,  be based on a 365-day  year (or 366-day  year,  as
applicable) and paid for the actual number of days elapsed.  All computations of
interest on LIBOR Loans shall,  unless otherwise  expressly  provided herein, be
based on a 360-day year and paid for the actual number of days elapsed. Whenever
a payment  hereunder or under any of the other Loan  Documents  becomes due on a
day that is not a Business Day or LIBOR  Business Day (as  applicable),  the due
date for such payment shall be extended to the next  succeeding  Business Day or
LIBOR  Business  Day (as  applicable),  and interest  shall  accrue  during such
extension;  provided that,  for any Interest  Period for any LIBOR Loan, if such
next succeeding  LIBOR Business Day falls in the next succeeding  calendar month
or after the Maturity  Date,  it shall be deemed to end on the  preceding  LIBOR
Business Day.

     ss.4.4.  Additional  Costs,  Etc. If, after the date hereof,  any change in
present  applicable  law or adoption of any applicable law after the date hereof
(including, in either case, without limitation,  statutes, rules and regulations
thereunder  and  interpretations  thereof  by  any  competent  court  or by  any
governmental   or  other   regulatory   body  or  official   charged   with  the
administration  or  the   interpretation   thereof  and  requests,   directives,
instructions and notices at any time or from time to time hereafter made upon or
otherwise  issued to any Bank by any central bank or other  fiscal,  monetary or
other authority, whether or not having the force of law) shall:
                 
                  (a) subject such Bank to any tax, levy, impost,  duty, charge,
         fee,  deduction  or  withholding  of any  nature  with  respect to this
         Agreement,  the other Loan Documents,  such Bank's  Commitment,  or the
         Loans (other than taxes based upon or measured by the income or profits
         of such Bank or any  franchise tax imposed by the  jurisdiction  of its
         incorporation or  organization,  or the location of its lending office,
         hereinafter referred to as "Income Taxes"); or

                  (b)  materially  change  the  basis of  taxation  (except  for
         changes in Income  Taxes) of payments to such Bank of the  principal or
         of the interest on any Loans or any other amounts  payable to such Bank
         under this Agreement or the other Loan Documents; or

                  (c) except as provided in ss.4.5 or as otherwise  reflected in
         the  Base  Rate  or the  LIBOR  Rate,  impose  or  increase  or  render
         applicable  (other  than  to  the  extent  specifically   provided  for
         elsewhere in this Agreement) any special deposit, reserve,  assessment,
         liquidity,  capital adequacy or other similar requirements  (whether or
         not having the force of law) against  assets held by, or deposits in or
         for the  account of, or loans by, or  commitments  of, an office of any
         Bank with  respect to this  Agreement,  the other Loan  Documents,  the
         Commitment, or the Loans; or

                  (d) impose on such Bank any other  conditions or  requirements
         with respect to this Agreement,  the other Loan  Documents,  the Loans,
         such Bank's  Commitment,  or any class of loans or commitments of which
         any of the Loans or such Bank's Commitment forms a part, and the result
         of any of the foregoing is

                           (i) to  increase  the  cost to such  Bank of  making,
                  funding, issuing, renewing, extending or maintaining the Loans
                  or such  Bank's  Commitment,  or issuing or  participating  in
                  Letters of Credit;

                           (ii) to reduce the amount of  principal,  interest or
                  other amount payable to such Bank hereunder on account of such
                  Bank's Commitment or the Loans;

                           (iii) to require  such Bank to make any payment or to
                  forego any interest or other sum payable hereunder, the amount
                  of  which  payment  or  foregone  interest  or  other  sum  is
                  calculated  by  reference  to the  gross  amount  of  any  sum
                  receivable  or deemed  received by such Bank from the Borrower
                  hereunder,

then,and in each such case,  the Borrowers  will,  upon demand made by such
Bank at any time and from time to time as often as the  occasion  therefore  may
arise (which demand shall be accompanied by a statement  setting forth the basis
of such demand), pay such reasonable additional amounts as will be sufficient to
compensate such Bank for such additional costs,  reduction,  payment or foregone
interest or other sum.

     ss.4.5. Capital Adequacy. If any Bank shall have determined that, after the
date hereof,  the adoption of any applicable  law, rule or regulation  regarding
capital  adequacy,  or any change in any such law, rule, or  regulation,  or any
change in the  interpretation  or  administration  thereof  by any  governmental
authority,  central bank or comparable agency charged with the interpretation or
administration  thereof,  or any request or directive regarding capital adequacy
(whether or not having the force of law) of any such authority,  central bank or
comparable  agency,  has or would have the effect of reducing the rate of return
on  capital  of such  Bank  (or any  corporation  controlling  such  Bank)  as a
consequence  of such Bank's  obligations  hereunder  to a level below that which
such Bank (or any corporation controlling such Bank) could have achieved but for
such  adoption,  change,  request or directive  (taking into  consideration  its
policies  with respect to capital  adequacy) by an amount deemed by such Bank to
be  material,  then from time to time,  within  thirty (30) days after demand by
such Bank (which demand shall be  accompanied  by a statement  setting forth the
basis of such  demand),  the  Borrower  shall pay to such  Bank such  additional
amount or amounts  as will,  in such  Bank's  reasonable  determination,  fairly
compensate  such  Bank  (or any  corporation  controlling  such  Bank)  for such
reduction.

     ss.4.6. Certificate.

     A certificate  setting forth any  additional  amounts  payable  pursuant to
ss.ss.4.4 or 4.5 and a  reasonable  explanation  of such amounts  which are due,
submitted  by any Bank or the  Agent  to the  Borrowers,  shall  be prima  facie
correct and binding, absent manifest error.

     ss.4.7.  Reasonable Efforts to Mitigate.  Each Bank agrees that as promptly
as  practicable  after it  becomes  aware of the  occurrence  of an event or the
existence of a condition that would cause it to be affected under ss.ss.4.4, 4.5
or 4.11, such Bank will give notice thereof to the Borrower,  with a copy to the
Agent, and, to the extent so requested by the Borrower and not inconsistent with
such Bank's internal  policies,  such Bank shall use reasonable efforts and take
such actions as are reasonably appropriate if as a result thereof the additional
moneys  which would  otherwise  be required to be paid to such Bank  pursuant to
such subsections would be materially reduced, or the illegality or other adverse
circumstances which would otherwise require a conversion of such Loans or result
in the  inability to make such Loans  pursuant to such  sections  would cease to
exist,  and in each case if, as determined by such Bank in its sole  discretion,
the taking such actions  would not  adversely  affect such Loans or such Bank or
otherwise  be  disadvantageous  to such  Bank.  To the  extent  practicable  and
applicable,  each Bank shall allocate such cost increases among its customers in
good faith and on an equitable basis.

     ss.4.8. LIBOR Indemnity. The Borrowers agree to indemnify the Banks and the
Agent and to hold them  harmless  from and  against  any loss,  cost or expenses
(including loss of anticipated profits) that the Banks and the Agent may sustain
or incur as a  consequence  of (a)  default by the  Borrowers  in payment of the
principal  amount  of or any  interest  on any  LIBOR  Loans as and when due and
payable,  including  any such loss or  expense  arising  from  interest  or fees
payable by any Bank or the Agent to lenders of funds  obtained by it in order to
maintain its LIBOR Loans,  or (b) default by the Borrowers in making a borrowing
or  conversion  after the  Borrowers  have given (or are  deemed to have  given)
notice  pursuant to ss.2.5 or ss.2.6,  the making of any payment of a LIBOR Loan
or the making of any  conversion of any such LIBOR Loan to a Base Rate Loan on a
day that is not the last day of the  applicable  Interest  Period  with  respect
thereto,  including  interest  or fees  payable  by any Bank to lenders of funds
obtained  by it in  order  to  maintain  any  such  LIBOR  Loans.  Such  loss or
reasonable  expense  shall  include an amount  equal to the  excess,  if any, as
reasonably  determined  by each Bank of (i) its cost of obtaining  the funds for
the LIBOR Loan being paid, prepaid,  converted,  not converted, or not borrowed,
as the case may be  (based on the LIBOR  Rate) for the  period  from the date of
such payment,  prepayment,  conversion,  or failure to borrow or convert, as the
case may be, to the last day of the  Interest  Period for such Loan (or,  in the
case of a failure to borrow,  the Interest  Period for the Loan which would have
commenced  on the date of such  failure  to  borrow)  over  (ii) the  amount  of
interest (as reasonably  determined by such Bank) that would be realized by such
Bank in re-employing  the funds so paid,  prepaid,  converted,  or not borrowed,
converted,  or prepaid for such period or Interest  Period,  as the case may be,
which determinations  shall be prima facie correct and binding,  absent manifest
error.

     ss.4.9.  Interest on Overdue Amounts.  Overdue principal and (to the extent
permitted by applicable law) interest on the Loans and all other overdue amounts
payable  hereunder or under any of the other Loan Documents  shall bear interest
compounded  monthly  and payable on demand at a rate per annum equal to the Base
Rate plus two (2) percent  until such amount  shall be paid in full  (after,  as
well as before, judgment).

     ss.4.10.  Interest  Limitation.  Notwithstanding  any  other  term  of this
Agreement or any Note or any other document  referred to herein or therein,  the
maximum  amount of interest which may be charged to or collected from any person
liable  hereunder or under any Note by any Bank shall be absolutely  limited to,
and shall in no event  exceed,  the  maximum  amount  of  interest  which  could
lawfully be charged or collected under applicable law (including,  to the extent
applicable, the provisions of Section 5197 of the Revised Statutes of the United
States of America,  as amended, 12 U.S.C.  Section 85, as amended),  so that the
maximum of all amounts  constituting  interest under  applicable law,  howsoever
computed,  shall  never  exceed as to any Person  liable  therefor  such  lawful
maximum,  and any term of this  Agreement,  the  Notes,  the  Letter  of  Credit
Applications, or any other document referred to herein or therein which could be
construed as providing  for interest in excess of such lawful  maximum  shall be
and hereby is made  expressly  subject to and modified by the provisions of this
paragraph,  and in the event any  amount in  excess  of the  lawful  maximum  is
charged or  collected  by the Agent or the Banks or paid by the  Borrowers,  the
Borrowers  shall be entitled to the  reimbursement  of such excess together with
interest thereon at the highest lawful rate at the time of such overcharge.

     ss.4.11. Illegality; Inability to Determine LIBOR Rate. Notwithstanding any
other provision of this Agreement, if (a) the introduction of, any change in, or
any change in the  interpretation  of, any law or  regulation  applicable to the
Agent  or any  Bank  shall  make it  unlawful,  or any  central  bank  or  other
governmental  authority  having  jurisdiction  thereof  shall  assert that it is
unlawful, for any Bank or the Agent to perform its obligations in respect of any
LIBOR Loans,  or (b) if the Banks or the Agent shall  reasonably  determine with
respect to LIBOR Loans that (i) by reason of  circumstances  affecting any LIBOR
interbank market,  adequate and reasonable methods do not exist for ascertaining
the LIBOR Rate which would otherwise be applicable  during any Interest  Period,
or (ii)  deposits of Dollars in the relevant  amount for the  relevant  Interest
Period  are not  available  to the  Banks or the  Agent in any  LIBOR  interbank
market, or (iii) the LIBOR Rate does not or will not accurately reflect the cost
to the Banks or the Agent of obtaining or maintaining the applicable LIBOR Loans
during any  Interest  Period,  then the Banks or the Agent shall  promptly  give
telephonic,  telex or cable notice of such determination to the Borrowers (which
notice  shall  be  conclusive  and  binding  upon  the  Borrowers).   Upon  such
notification by the Banks or the Agent, the obligation of the Banks or the Agent
to make LIBOR Loans shall be  suspended  until the Banks or the Agent  determine
that such  circumstances no longer exist, and the outstanding  LIBOR Loans shall
continue to bear interest at the  applicable  rate based on the LIBOR Rate until
the end of the  applicable  Interest  Period,  and  thereafter  shall be  deemed
converted to Base Rate Loans in equal principal amounts.

     ss.4.12. Concerning Joint and Several Liability of the Borrowers.

                  (a) Each of the  Borrowers  is  accepting  joint  and  several
         liability hereunder and under the other Loan Documents in consideration
         of the financial  accommodations to be provided by the Banks under this
         Agreement, for the mutual benefit,  directly and indirectly, of each of
         the Borrowers and in  consideration  of the  undertakings of each other
         Borrower to accept joint and several liability for the Obligations.

                  (b)  Each of the  Borrowers,  jointly  and  severally,  hereby
         irrevocably  and  unconditionally  accepts,  not merely as a surety but
         also as a  co-debtor,  joint  and  several  liability  with  the  other
         Borrowers  with  respect to the payment and  performance  of all of the
         Obligations  (including,  without  limitation,  any Obligations arising
         under this ss.4.12),  it being the intention of the parties hereto that
         all of the  Obligations  shall be the joint and several  Obligations of
         each of the Borrowers without preferences or distinction among them.

                  (c) If and to the extent that any of the Borrowers  shall fail
         to make any payment with respect to any of the  Obligations as and when
         due or to perform any of the  Obligations in accordance  with the terms
         thereof,  then in each such  event the other  Borrowers  will make such
         payment with respect to, or perform, such Obligation.

                  (d)  The  Obligations  of  each  of the  Borrowers  under  the
         provisions of this ss.4.12 constitute full recourse Obligations of each
         of the Borrowers  enforceable against each such corporation to the full
         extent of its  properties  and assets,  irrespective  of the  validity,
         regularity   or   enforceability   of  this   Agreement  or  any  other
         circumstance whatsoever.

                  (e) Except as otherwise  expressly provided in this Agreement,
         each of the  Borrowers  hereby waives notice of acceptance of its joint
         and several  liability,  notice of any Loans made under this Agreement,
         notice of any action at any time taken or omitted by the Banks under or
         in respect of any of the  Obligations,  and,  generally,  to the extent
         permitted by applicable law, all demands, notices and other formalities
         of every kind in connection with this Agreement.  Each of the Borrowers
         hereby assents to, and waives notice of, any extension or  postponement
         of the time for the payment of any of the  Obligations,  the acceptance
         of any payment of any of the Obligations, the acceptance of any partial
         payment thereon, any waiver, consent or other action or acquiescence by
         the Banks at any time or times in respect of any  default by any of the
         Borrowers in the  performance or  satisfaction  of any term,  covenant,
         condition or provision of this Agreement, any and all other indulgences
         whatsoever by the Banks in respect of any of the  Obligations,  and the
         taking, addition,  substitution or release, in whole or in part, at any
         time  or  times,  of any  security  for any of the  Obligations  or the
         addition,  substitution or release,  in whole or in part, of any of the
         Borrowers.  Without  limiting the generality of the foregoing,  each of
         the Borrowers assents to any other action or delay in acting or failure
         to act on the part of the Banks with  respect to the  failure by any of
         the  Borrowers  to  comply  with  any  of its  respective  Obligations,
         including,  without  limitation,  any failure strictly or diligently to
         assert  any right or to pursue  any  remedy  or to  comply  fully  with
         applicable  laws or regulations  thereunder,  which might,  but for the
         provisions of this ss.4.12, afford grounds for terminating, discharging
         or relieving any of the Borrowers, in whole or in part, from any of its
         Obligations  under this ss.4.12,  it being the intention of each of the
         Borrowers  that,  so long as any of the  Obligations  hereunder  remain
         unsatisfied, the Obligations of such Borrowers under this ss.4.12 shall
         not be discharged  except by performance and then only to the extent of
         such  performance.  The Obligations of each of the Borrowers under this
         ss.4.12  shall  not be  diminished  or  rendered  unenforceable  by any
         winding up, reorganization,  arrangement, liquidation,  re-construction
         or  similar  proceeding  with  respect to any of the  Borrowers  or the
         Banks. The joint and several liability of the Borrowers hereunder shall
         continue  in full  force and  effect  notwithstanding  any  absorption,
         merger,  amalgamation  or any  other  change  whatsoever  in the  name,
         membership,  constitution or place of formation of any of the Borrowers
         or the Banks.

                  (f) The provisions of this ss.4.12 are made for the benefit of
         the Banks and their successors and assigns, and may be enforced in good
         faith by them from time to time against any or all of the  Borrowers as
         often as the occasion therefor may arise and without requirement on the
         part of the Banks first to marshal  any of their  claims or to exercise
         any of their  rights  against  any other  Borrower  or to  exhaust  any
         remedies  available to them against any other  Borrower or to resort to
         any  other  source  or  means  of  obtaining  payment  of  any  of  the
         Obligations  hereunder or to elect any other remedy.  The provisions of
         this ss.4.12 shall remain in effect until all of the Obligations  shall
         have been paid in full or otherwise  fully  satisfied.  If at any time,
         any  payment,  or any  part  thereof,  made  in  respect  of any of the
         Obligations,  is rescinded or must otherwise be restored or returned by
         the Banks upon the insolvency,  bankruptcy or  reorganization of any of
         the  Borrowers,  or  otherwise,  the  provisions  of this  ss.4.12 will
         forthwith be reinstated in effect,  as though such payment had not been
         made.

     ss.4.13.  New  Borrowers.  Any  existing or  newly-created  or acquired U.S
Subsidiary of the Parent (other than members of the MasTec International Group),
which (a) has annual gross  revenues of at least  $1,000,000 on an historical or
annualized basis, or (b) is the parent of any other Borrower, shall be Borrowers
hereunder,  and all other U.S.  Subsidiaries of the Parent designated as such by
the  Parent  shall  be  Excluded   Subsidiaries,   provided  that  the  Excluded
Subsidiaries  may not, in the aggregate,  have in excess of five percent (5%) of
consolidated total assets,  consolidated total liabilities or consolidated gross
revenues  of the Parent and its U.S.  Subsidiaries  (other  than  members of the
MasTec  International  Group)  at any  time,  in  each  case  as  determined  in
accordance  with GAAP.  Any  Subsidiary  which is  required to become a Borrower
pursuant  to the terms of this  ss.4.13  shall sign  Notes,  shall enter into an
amendment to this Agreement and the U.S.  Stock Pledge  Agreement with the other
parties hereto providing that such Subsidiary shall become a Borrower hereunder,
and shall provide such other  documentation as the Agent may reasonably request,
including,   without  limitation,   documentation  with  respect  to  conditions
specified in ss.9 hereof.  In such event, the Agent is hereby  authorized by the
parties  to amend  Schedule 1 hereto to include  such  Subsidiary  as a Borrower
hereunder.  The Borrowers  hereby agree to pledge all of their stock of the U.S.
Subsidiaries (including members of the MasTec International Group which are U.S.
Subsidiaries),  other than the stock of Excluded Subsidiaries,  to the Agent for
the  benefit  of the  Banks  pursuant  to the  terms  of the U.S.  Stock  Pledge
Agreement.

     ss.4.14. Replacement of Banks.

     If any Bank (an  "Affected  Bank") (i) makes demand upon the  Borrowers for
(or  if  Borrowers   are  otherwise   required  to  pay)  amounts   pursuant  to
ss.ss.4.2(b),  4.4 or 4.5,  (ii) is unable to make or maintain  LIBOR Loans as a
result of a condition  described in ss.4.11, or (iii) defaults in its obligation
to make Loans or participate  in Letters of Credit in accordance  with the terms
of this Agreement,  the Borrowers or the Agent may, within 90 days of receipt of
such demand, notice (or the occurrence of such other event causing the Borrowers
to be required to pay such  compensation or causing ss.4.11 to be applicable) or
default,  as the case may be, by notice (a  "Replacement  Notice") in writing to
such Affected Bank and the Agent or Borrowers,  as  applicable,  (A) request the
Affected Bank to cooperate  with the  Borrowers in obtaining a replacement  bank
satisfactory  to the Agent  and the  Borrowers  (the  "Replacement  Bank");  (B)
request the non-Affected  Banks to acquire and assume all of the Affected Bank's
Loans and  Commitment and  participate in Letters of Credit as provided  herein,
but none of such Banks shall be under an obligation to do so; or (C) designate a
Replacement  Bank  reasonably   satisfactory  to  the  Agent  or  Borrowers,  as
applicable.  If any satisfactory Replacement Bank shall be obtained,  and/or any
of the non-Affected  Banks shall agree to acquire and assume all of the Affected
Bank's Loans and  Commitment  and  participate  in Letters of Credit,  then such
Affected  Bank shall,  so long as no Event of Default shall have occurred and be
continuing,  assign,  in accordance with ss.17,  all of its  Commitment,  Loans,
Notes and other rights and  obligations  under this Agreement and all other Loan
Documents to such Replacement Bank or non-Affected Banks, as the case may be, in
exchange  for payment of the  principal  amount so assigned and all interest and
fees accrued on the amount so assigned,  plus all other Obligations then due and
payable to the Affected Bank; provided,  however, that (i) such assignment shall
be  without  recourse,  representation  or  warranty  and  shall be on terms and
conditions  reasonably  satisfactory to such Affected Bank and such  Replacement
Bank and/or  non-Affected  Banks, as the case may be, and (ii) prior to any such
assignment,  the  Borrowers  shall have paid to such  Affected  Bank all amounts
properly demanded and unreimbursed under ss.ss.4.2(b), 4.4, 4.5 or 4.8. Upon the
effective date of such assignment the Borrowers shall issue replacement Notes to
such  Replacement Bank and/or  non-Affected  Banks, as the case may be, and such
Replacement Bank shall become a "Bank" for all purposes under this Agreement and
the other Loan Documents.

     ss.5.  REPRESENTATIONS AND WARRANTIES.  The Borrowers jointly and severally
represent and warrant to the Banks that on and as of the date of this  Agreement
(any disclosure on a schedule  pursuant to this ss.5 shall be deemed to apply to
all relevant representations and warranties, regardless of whether such schedule
is referenced in each relevant representation):

     ss.5.1. Corporate Authority.

                  (a)  Incorporation;  Good Standing.  Each of the Borrowers and
         the  International  Signatories  (i) is a corporation  duly  organized,
         validly  existing and in good  standing or in current  status under the
         laws of its  respective  jurisdiction  of  incorporation,  (ii) has all
         requisite  corporate power to own its property and conduct its business
         as now  conducted and as presently  contemplated,  and (iii) is in good
         standing as a foreign corporation and is duly authorized to do business
         in each  jurisdiction  in which its  property or business as  presently
         conducted or contemplated  makes such  qualification  necessary  except
         where a failure to be so  qualified  would not have a material  adverse
         effect on the business, assets or financial condition of the Borrowers,
         taken as a whole, or the MasTec International Group, taken as a whole.

                  (b) Authorization.  The execution, delivery and performance of
         its Loan Documents and the transactions contemplated hereby and thereby
         (i) are within the corporate authority of each of the Borrowers and the
         International  Signatories,  (ii)  have  been  duly  authorized  by all
         necessary corporate  proceedings,  (iii) do not conflict with or result
         in any  material  breach  or  contravention  of any  provision  of law,
         statute,  rule or  regulation  to which any  Borrower or  International
         Signatory is subject or any judgment, order, writ, injunction,  license
         or permit  applicable to any Borrower or International  Signatory so as
         to have a  material  adverse  effect  on the  assets,  business  or any
         activity  of such  Borrower  or  International  Signatory,  (iv) do not
         conflict with any  provision of the corporate  charter or bylaws of any
         Borrower  or  International  Signatory,  (v) do not  conflict  with any
         material  contract,  agreement  or other  instrument  binding  upon any
         Borrower or International Signatory, and (vi) will not create a lien on
         any  properties  of any of the Borrowers or  International  Signatories
         other than pursuant to the Loan Documents.

                  (c) Enforceability. The execution, delivery and performance of
         the Loan Documents will result in valid and legally binding obligations
         of the Borrowers and the International Signatories, enforceable against
         each of them in accordance  with the  respective  terms and  provisions
         hereof and thereof,  except as enforceability is limited by bankruptcy,
         insolvency,  reorganization,  moratorium  or other laws  relating to or
         affecting  generally the enforcement of creditors' rights and except to
         the extent that  availability of the remedy of specific  performance or
         injunctive  relief is subject  to the  discretion  of the court  before
         which any proceeding therefor may be brought.

     ss.5.2. Governmental Approvals. The execution,  delivery and performance by
the Borrowers and the  International  Signatories  of the Loan Documents and the
transactions  contemplated  hereby and thereby do not  require  any  approval or
consent of, or filing with,  any  governmental  agency or  authority  other than
those already obtained;  provided,  however, that the International  Signatories
shall have ninety (90) days after the date hereof to effect this provision.

     ss.5.3.   Title  to  Properties;   Leases.  Each  of  the  Parent  and  its
Subsidiaries  owns all of its respective  assets  reflected in the  consolidated
balance  sheet of the Parent as at the  Interim  Balance  Sheet Date or acquired
since that date (except property and assets sold or otherwise disposed of in the
ordinary  course  of  business  since  that  date),  subject  to  no  mortgages,
capitalized leases,  conditional sales agreements,  title retention  agreements,
liens or other encumbrances except Permitted Liens.

     ss.5.4. Financial Statements; Solvency.

                  (a)  There  has been  furnished  to the  Banks  (i)  unaudited
         consolidated financial statements of the Parent dated the Balance Sheet
         Date,  including  reconciliations  of (A) the  Borrowers and the MasTec
         International  Group  (excluding  that portion of assets,  liabilities,
         income  and  expenses  attributable  to the  Sintel  Group) and (B) the
         Sintel Group to the  consolidated  financial  statements of the Parent,
         and (ii) an  unaudited  consolidated  balance  sheet and  statement  of
         income of the Parent dated the Interim  Balance  Sheet Date,  including
         reconciliations of (A) the Borrowers (excluding that portion of assets,
         liabilities,   income  and  expenses  of  the  Parent  attributable  to
         non-Borrowers)  and (B) the  non-Borrowers to the consolidated  balance
         sheet and statement of income of the Parent. Said financial  statements
         have been prepared in accordance with GAAP (but only to the extent that
         GAAP  is  applicable  to  unaudited  reports),  fairly  present  in all
         material  respects  the  financial  condition  of the  Borrowers,  on a
         consolidated  basis,  as at the close of business on the dates  thereof
         and the results of operations  for the period then ended.  There are no
         contingent  liabilities  of the  Borrowers  as of such  date  involving
         material  amounts known to the officers of the Borrowers which have not
         been disclosed in said balance sheets and the related notes thereto, as
         the case may be.

                  (b) The Parent  (both  before and after  giving  effect to the
         transactions  contemplated  by this Agreement) is solvent (i.e., it has
         assets having a fair value in excess of the amount  required to pay its
         probable  liabilities on its existing debts as they become absolute and
         matured)  and has,  and  expects to have,  the ability to pay its debts
         from  time to time  incurred  in  connection  therewith  as such  debts
         mature.

                  (c) The  Borrowers  taken as a whole  (both  before  and after
         giving effect to the  transactions  contemplated by this Agreement) are
         solvent  (i.e.,  they have assets  having a fair value in excess of the
         amount  required to pay their  probable  liabilities  on their existing
         debts as they become  absolute  and  matured)  and have,  and expect to
         have,  the  ability to pay their  debts from time to time  incurred  in
         connection therewith as such debts mature.

     ss.5.5. No Material Changes,  Etc. Since the Balance Sheet Date, there have
occurred no material  adverse changes in the financial  condition or business of
the Borrowers as shown on or reflected in the consolidated  balance sheet of the
Parent as at the Balance Sheet Date, or the consolidated statement of income for
the fiscal year then ended other than changes  occurring in the ordinary  course
of business that in the aggregate have not had a material  adverse effect on the
business or financial  condition of the  Borrowers  taken as a whole.  Since the
Balance  Sheet Date,  no Borrower  has made any  Distribution  other than to the
Parent.

     ss.5.6.  Permits,  Franchises,   Patents,  Copyrights,  Etc.  Each  of  the
Borrowers  possesses all  franchises,  patents,  copyrights,  trademarks,  trade
names,  licenses and permits,  and rights in respect of the foregoing,  adequate
for the conduct of its business  substantially  as now  conducted  without known
conflict with any rights of others.

     ss.5.7.  Litigation.  Except as shown on Schedule 5.7 hereto,  there are no
actions,  suits,  proceedings or  investigations  of any kind pending or, to the
knowledge of the Borrowers,  threatened  against any Borrower  before any court,
tribunal or  administrative  agency or board  which,  if  adversely  determined,
might, either in any case or in the aggregate, have a material adverse effect on
the  properties,  assets,  financial  condition  or business  of the  Borrowers,
considered  as a  whole,  or  materially  impair  the  right  of the  Borrowers,
considered as a whole, to carry on business  substantially as now conducted,  or
result in any substantial liability not adequately covered by insurance,  or for
which adequate reserves are not maintained on the consolidated  balance sheet or
which  question the validity of any of the Loan Documents or any action taken or
to be taken pursuant hereto or thereto.

     ss.5.8.  No  Materially  Adverse  Contracts,  Etc. None of the Borrowers is
subject to any charter,  corporate or other legal restriction,  or any judgment,
decree,  order,  rule or  regulation  which in the  judgment  of the  Borrowers'
officers has or is expected in the future to have a material  adverse  effect on
the business,  assets or financial  condition of the Borrowers taken as a whole.
None of the  Borrowers  is a party to any  contract  or  agreement  which in the
judgment of the  Borrowers'  officers  has or is  expected to have any  material
adverse  effect on the  business of the  Borrowers  taken as a whole,  except as
otherwise reflected in adequate reserves.

     ss.5.9. Compliance With Other Instruments, Laws, Etc. None of the Borrowers
or the  International  Signatories  is  violating  any  provision of its charter
documents or by-laws or any  agreement or instrument by which any of them may be
subject or by which any of them or any of their  properties  may be bound or any
decree,  order,  judgment,  or any statute,  license,  rule or regulation,  in a
manner which could in the  aggregate  result in the  imposition  of  substantial
penalties or a material adverse effect on the financial condition, properties or
business of the Borrowers  taken as a whole,  or would impair the ability of any
Borrower or International Signatory to enter into or perform the Loan Documents.

     ss.5.10. Tax Status. The Borrowers have made or filed all federal and state
income and all other tax  returns,  reports  and  declarations  required  by any
jurisdiction to which any of them is subject (unless and only to the extent that
any Borrower has set aside on its books provisions  reasonably  adequate for the
payment of all unpaid and unreported  taxes);  and have paid all taxes and other
governmental  assessments  and charges  that are  material  in amount,  shown or
determined to be due on such  returns,  reports and  declarations,  except those
being  contested  in good faith;  and have set aside on their  books  provisions
reasonably  adequate for the payment of all taxes for periods  subsequent to the
periods to which such  returns,  reports or  declarations  apply.  Except as set
forth on Schedule 5.10, there are no unpaid taxes in any material amount claimed
to be due by the taxing authority of any  jurisdiction,  and the officers of the
Borrowers know of no basis for any such claim.

     ss.5.11.  No Event of Default.  No Default or Event of Default has occurred
and is continuing as of the date of this Agreement.

     ss.5.12. Holding Company and Investment Company Acts. None of the Borrowers
is a "holding company," or a "subsidiary  company" of a "holding company," or an
"affiliate"  of a "holding  company,"  as such  terms are  defined in the Public
Utility Holding Company Act of 1935; nor is any of them a "registered investment
company,"  or  an  "affiliated  company"  or  a  "principal  underwriter"  of  a
"registered  investment  company,"  as such terms are defined in the  Investment
Company Act of 1940, as amended.

     ss.5.13.  Absence of  Financing  Statements,  Etc.  Except with  respect to
Permitted Liens, there is no financing  statement,  security agreement,  chattel
mortgage,  real estate  mortgage or other  document  filed or recorded  with any
filing  records,  registry,  or other public  office,  which  purports to cover,
affect or give  notice of any  present or  possible  future lien on, or security
interest  in,  any  assets  or  property  of  any  of the  Borrowers  or  rights
thereunder.

     ss.5.14. Employee Benefit Plans.

                  (a) In General. Each Employee Benefit Plan and each Guaranteed
         Pension  Plan has been  maintained  and operated in  compliance  in all
         material  respects  with the  provisions  of ERISA  and,  to the extent
         applicable,  the Code,  including  but not  limited  to the  provisions
         thereunder  respecting  prohibited  transactions  and  the  bonding  of
         fiduciaries and other persons handling plan funds as required by ss.412
         of ERISA. The Borrowers have heretofore delivered to the Agent the most
         recently  completed  annual  report,   Form  5500,  with  all  required
         attachments,  and actuarial  statement  required to be submitted  under
         ss.103(d) of ERISA, with respect to each Guaranteed Pension Plan.

                  (b)  Terminability  of Welfare  Plans.  Except as set forth on
         Schedule 5.14(b), no Employee Benefit Plan which is an employee welfare
         benefit  plan  within the  meaning of ss.3(1) or  ss.3(2)(B)  of ERISA,
         provides  benefit  coverage  subsequent  to  termination  of employment
         except  as  required  by Title I, Part 6 of ERISA or  applicable  state
         insurance  laws.  Any Borrower may terminate each such Plan at any time
         (or  at  any  time  subsequent  to the  expiration  of  any  applicable
         bargaining  agreement)  in the  discretion  of  such  Borrower  without
         liability  to any  Person  other  than  for  claims  arising  prior  to
         termination.

                  (c) Guaranteed Pension Plans. Each contribution required to be
         made to a Guaranteed Pension Plan, whether required to be made to avoid
         the incurrence of an accumulated funding deficiency, the notice or lien
         provisions of ss.302(f) of ERISA,  or otherwise,  has been timely made.
         No  waiver  of  an  accumulated  funding  deficiency  or  extension  of
         amortization  periods has been received with respect to any  Guaranteed
         Pension Plan, and neither any of the Borrowers nor any ERISA  Affiliate
         is obligated to or has posted  security in connection with an amendment
         of  a  Guaranteed   Pension  Plan   pursuant  to  ss.307  of  ERISA  or
         ss.401(a)(29)  of the  Code.  No  liability  to the  PBGC  (other  than
         required  insurance  premiums,  all of which  have been  paid) has been
         incurred by any  Borrower or any ERISA  Affiliate  with  respect to any
         Guaranteed  Pension  Plan and there  has not been any ERISA  Reportable
         Event,  or any other event or condition  which presents a material risk
         of termination of any Guaranteed Pension Plan by the PBGC. Based on the
         latest  valuation of each  Guaranteed  Pension Plan (which in each case
         occurred within twelve months of the date of this representation),  and
         on the actuarial  methods and assumptions  employed for that valuation,
         the aggregate benefit  liabilities of all such Guaranteed Pension Plans
         within the  meaning  of  ss.4001 of ERISA did not exceed the  aggregate
         value of the assets of all such Guaranteed Pension Plans,  disregarding
         for this purpose the benefit  liabilities  and assets of any Guaranteed
         Pension Plan with assets in excess of benefit liabilities.

                  (d)  Multiemployer  Plans. None of the Borrowers nor any ERISA
         Affiliate  has  incurred any material  liability  (including  secondary
         liability)  to any  Multiemployer  Plan as a result  of a  complete  or
         partial  withdrawal from such Multiemployer Plan under ss.4201 of ERISA
         or as a result of a sale of assets described in ss.4204 of ERISA.  None
         of the  Borrowers  nor any ERISA  Affiliate  has been notified that any
         Multiemployer  Plan is in  reorganization  or is  insolvent  under  and
         within  the  meaning  of  ss.4241  or ss.4245 of ERISA or is at risk of
         entering   reorganization   or   becoming   insolvent,   or  that   any
         Multiemployer  Plan intends to terminate or has been  terminated  under
         ss.4041A of ERISA.

     ss.5.15.  Use of  Proceeds.  The  proceeds  of the  Loans  shall be used as
follows:  (a)  for  general  corporate  purposes;  (b)  to  repay  the  existing
indebtedness of the Borrowers;  (c) for Investments permitted pursuant to ss.7.3
hereof,  and (d) for  acquisitions  permitted  pursuant  to  ss.7.4  hereof.  No
proceeds of the Loans shall be used in any way that will violate  Regulations G,
T, U or X of the Board of Governors of the Federal Reserve System.






     ss.5.16. Environmental Compliance. Except as shown on Schedule 5.16:

                  (a)  None  of  the  Borrowers,   nor  any  operator  of  their
         properties,  is in violation,  or alleged  violation,  of any judgment,
         decree,  order, law, permit,  license, rule or regulation pertaining to
         environmental  matters,  including  without  limitation,  those arising
         under RCRA, CERCLA, the Superfund Amendments and Reauthorization Act of
         1986, the Federal Clean Water Act, the Federal Clean Air Act, the Toxic
         Substances  Control  Act,  or any state or local  statute,  regulation,
         ordinance,   order  or  decree  relating  to  health,   safety  or  the
         environment (the  "Environmental  Laws"),  which violation would have a
         material adverse effect on the business,  assets or financial condition
         of the Borrowers on a consolidated basis.

                  (b) None of the Borrowers  has received  notice from any third
         party,  including,  without  limitation,  any  federal,  state or local
         governmental authority, (i) that any one of them has been identified by
         the  United  States  Environmental   Protection  Agency  ("EPA")  as  a
         potentially  responsible  party  under  CERCLA  with  respect to a site
         listed on the National  Priorities List, 40 C.F.R. Part 300 Appendix B;
         (ii) that any hazardous waste, as defined by 42 U.S.C. ss.6903(5),  any
         hazardous substances as defined by 42 U.S.C. ss.9601(14), any pollutant
         or  contaminant  as  defined  by 42  U.S.C.  ss.9601(33)  or any  toxic
         substance,  oil or hazardous materials or other chemicals or substances
         regulated by any Environmental Laws ("Hazardous  Substances") which any
         one of them has generated, transported or disposed of has been found at
         any site at which a federal, state or local agency or other third party
         has  conducted  or has  ordered  that any  Borrower  conduct a remedial
         investigation,  removal  or  other  response  action  pursuant  to  any
         Environmental Law; or (iii) that it is or shall be a named party to any
         claim,  action,  cause of action,  complaint,  legal or  administrative
         proceeding  arising  out of any  third  party's  incurrence  of  costs,
         expenses,  losses or damages of any kind  whatsoever in connection with
         the release of Hazardous Substances.

                  (c) (i) No portion of the Real  Property has been used for the
         handling,  processing,  storage or  disposal  of  Hazardous  Substances
         except in material compliance with applicable  Environmental Laws; (ii)
         in the  course  of  any  activities  conducted  by  the  Borrowers,  or
         operators  of the Real  Property,  no  Hazardous  Substances  have been
         generated  or are being  used on such  properties  except  in  material
         compliance with applicable Environmental Laws; (iii) there have been no
         unpermitted Releases or threatened Releases of Hazardous Substances on,
         upon,  into or from the Real  Property,  which  Releases  would  have a
         material  adverse effect on the value of such  properties;  (iv) to the
         best of the Borrowers' knowledge, there have been no Releases on, upon,
         from or into any real  property in the  vicinity  of the Real  Property
         which, through soil or groundwater  contamination,  may have come to be
         located on, and which would have a material adverse effect on the value
         of, such properties; and (v) in addition, any Hazardous Substances that
         have been generated on the Real Property have been transported  offsite
         only by carriers  having an  identification  number  issued by the EPA,
         treated  or  disposed  of  only by  treatment  or  disposal  facilities
         maintaining  valid permits as required under  applicable  Environmental
         Laws, which transporters and facilities,  to the best of the Borrowers'
         knowledge, have been and are operating in material compliance with such
         permits and applicable Environmental Laws.

                  (d) None of the Real  Property  is or shall be  subject to any
         applicable  environmental clean-up  responsibility law or environmental
         restrictive  transfer law or regulation,  by virtue of the transactions
         set forth herein and contemplated hereby.

     ss.5.17.  Perfection of Security Interests. Except as set forth on Schedule
5.17,  the  Collateral and the Agent's rights with respect to the Collateral are
not subject to any setoff, claims, withholdings or other defenses. The Borrowers
and MasTec  International,  Inc. are the owners of the Collateral  free from any
lien, security interest,  encumbrance and any other claim or demand,  other than
liens in  favor  of the  Agent  for the  benefit  of the  Banks  to  secure  the
Obligations. The Stock Pledge Agreements are effective to create in favor of the
Agent,  for the  benefit  of the Banks,  a legal,  valid and  enforceable  first
priority security interest in the Collateral. The certificates for the shares of
such Collateral have been delivered to the Agent; provided, however, that MasTec
International, Inc. shall have ninety (90) days after the Closing Date to effect
this  provision.  The  parties  agree  that  there  shall be no  public  filing,
registration or notice of the Sintel Stock Pledge  Agreement  unless an Event of
Default shall have occurred.

     ss.5.18.  Certain  Transactions.  Except as set forth on Schedule  5.18 and
except  for arm's  length  transactions  pursuant  to which the  Borrowers  make
payments in the ordinary  course of business upon terms no less  favorable  than
the Borrowers could obtain from third parties, none of the officers,  directors,
or employees of the Borrowers is presently a party to any  transaction  with the
Borrowers  (other  than for  services as  employees,  officers  and  directors),
including  any  contract,  agreement  or  other  arrangement  providing  for the
furnishing  of  services  to or by,  providing  for  rental of real or  personal
property to or from,  or  otherwise  requiring  payments to or from any officer,
director  or  such  employee  or,  to  the  knowledge  of  the  Borrowers,   any
corporation,  partnership, trust or other entity in which any officer, director,
or any such  employee  has a  substantial  interest or is an officer,  director,
trustee or partner.

     ss.5.19.  Subsidiaries.  Schedule 1 sets forth a complete and accurate list
of the direct or indirect Subsidiaries of the Parent, including the name of each
Subsidiary and its  jurisdiction of  incorporation,  together with the number of
authorized and outstanding  shares of each Subsidiary.  All of the stock of each
U.S.  Subsidiary (other than the Excluded  Subsidiaries) and 66% of the stock of
Sintel which is directly or  indirectly  owned by the Parent has been pledged to
the Agent on behalf of the Banks  pursuant to the Stock Pledge  Agreements.  The
Parent has good and marketable  title to all of the shares it purports to own of
the stock of each such Subsidiary,  free and clear in each case of any lien. All
such shares have been duly  issued and are fully paid and  non-assessable.  Each
Subsidiary of the Parent,  other than the Excluded  Subsidiaries and the members
of the MasTec International Group, is a Borrower hereunder.

     ss.5.20. True Copies of Charter and Other Documents.  The Borrowers and the
International Signatories have furnished the Agent copies, in each case true and
complete  as of the date  hereof,  of (a) all  charter  and other  incorporation
documents  (together with any amendments thereto) and (b) by-laws (together with
any amendments thereto);  provided,  however, that the International Signatories
shall have ninety (90) days to effect this provision as regards Sintel.

     ss.6.  AFFIRMATIVE  COVENANTS OF THE BORROWERS.  The Borrowers  jointly and
severally covenant and agree that, so long as any Loan, Reimbursement Obligation
or Note is  outstanding  or the Banks have any  obligation  to make Loans or the
Agent has any  obligation  to issue,  extend,  or renew  any  Letters  of Credit
hereunder:

     ss.6.1.  Punctual  Payment.  The Borrowers  will duly and punctually pay or
cause to be paid the  principal  and  interest on the Loans,  all fees and other
amounts  provided for in this  Agreement  and the other Loan  Documents,  all in
accordance with the terms of this Agreement and such other Loan Documents.

     ss.6.2.  Maintenance  of Office.  The Borrowers  will maintain  their chief
executive  offices  as set forth on  Schedule  1 or at such  other  place in the
United States of America as the Borrowers shall designate upon thirty (30) days'
prior written notice to the Agent.

     ss.6.3.  Records and  Accounts.  Each of the  Borrowers  will keep true and
accurate  records and books of account in which full,  true and correct  entries
will be made in accordance with GAAP and with the requirements of all regulatory
authorities,  and will  maintain  adequate  accounts  and reserves for all taxes
(including income taxes), depreciation, depletion, obsolescence and amortization
of its properties, all other contingencies, and all other proper reserves.

     ss.6.4. Financial Statements,  Certificates and Information.  The Borrowers
shall deliver to the Banks:

                  (a) as soon as  practicable,  but in any event not later  than
         fifty (50) days after the end of each fiscal  quarter of the Borrowers,
         copies of the consolidated balance sheet and statement of income of the
         Borrowers (excluding that portion of the Parent's assets,  liabilities,
         income and expenses  attributable  to  non-Borrowers)  as at the end of
         such  quarter,  subject  to  year  end  adjustments,  and  the  related
         statement  of cash  flows,  all in  reasonable  detail and  prepared in
         accordance with GAAP, with a certification  by the principal  financial
         or accounting officer of the Parent (the "CFO") that these consolidated
         financial  statements  are prepared in accordance  with GAAP and fairly
         present the consolidated financial condition of the Borrowers as at the
         close of business on the date thereof and the results of operations for
         the period then ended;

                  (b) as soon as  practicable,  but in any event not later  than
         fifty (50) days  after the end of each  fiscal  quarter of the  Parent,
         copies of the consolidated balance sheet and statement of income of the
         Parent as at the end of such quarter,  subject to year end adjustments,
         and the related  statement of cash flows, all in reasonable  detail and
         prepared in accordance with GAAP, with a certification  by the CFO that
         these consolidated financial statements are prepared in accordance with
         GAAP and fairly  present the  consolidated  financial  condition of the
         Parent as at the close of business on the date  thereof and the results
         of operations for the period then ended;

                  (c) as soon as  practicable,  but, in any event not later than
         one hundred (100) days after the end of each fiscal year of the Parent,
         the consolidated and  consolidating  balance sheets of Parent as at the
         end  of  such  year,   statements  of  cash  flows,   and  the  related
         consolidated and consolidating statements of income, each setting forth
         in comparative  form the figures for the previous fiscal year, all such
         consolidated and consolidating financial statements to be in reasonable
         detail,  prepared  in  accordance  with GAAP and,  with  respect to the
         consolidated  financial  statements,  certified  by  Coopers  & Lybrand
         L.L.P.  or another  independent  accounting  firm of national  standing
         acceptable   to  the  Agent  (the   "Accountants")   and   including  a
         reconciliation  of  the  consolidated   financial   statements  of  the
         Borrowers (excluding that portion of the Parent's assets,  liabilities,
         income and expenses  attributable to non-Borrowers) to the consolidated
         financial  statements  of  the  Parent.  In  addition,   simultaneously
         therewith,  the Borrowers  shall use their  reasonable  best efforts to
         provide the Banks with a written statement from such Accountants to the
         effect that the  Borrowers  are in  compliance  with the  covenants set
         forth in ss.8 hereof, and that, in making the examination  necessary to
         said  certification,   nothing  has  come  to  the  attention  of  such
         Accountants  that would  indicate  that any Default or Event of Default
         exists,  or, if such Accountants  shall have obtained  knowledge of any
         then existing  Default or Event of Default they shall  disclose in such
         statement  any such  Default or Event of Default;  provided,  that such
         Accountants  shall not be liable  to the  Banks for  failure  to obtain
         knowledge of any Default or Event of Default;

                  (d) as soon as  practicable,  but in any event not later  than
         thirty (30) days after the end of each fiscal quarter of the Borrowers,
         copies of the Accounts  Receivable  aging  reports of the Borrowers and
         the  consolidated  liquidity  calculation  for such date required under
         ss.8.4 hereof, all in reasonable detail and prepared in accordance with
         GAAP,  with  a  certification   by  the  CFO  that  these  reports  and
         calculation are prepared in accordance with GAAP and fairly present the
         Accounts Receivable of the Borrowers as at the close of business on the
         date thereof;

                  (e) simultaneously  with the delivery of the items referred to
         in (a), (b) and (c) above,  a statement in the form of Exhibit D hereto
         (the "Compliance  Certificate") certified by the CFO that the Borrowers
         are in  compliance  with the  covenants  contained in ss.ss.6,  7 and 8
         hereof as of the end of the  applicable  period  and  setting  forth in
         reasonable  detail  computations  evidencing such compliance,  provided
         that if the Borrowers shall at the time of issuance of such certificate
         or at any  other  time  obtain  knowledge  of any  Default  or Event of
         Default,  the Borrowers shall include in such  certificate or otherwise
         deliver forthwith to the Banks a certificate  specifying the nature and
         period of existence  thereof and what action the  Borrowers  propose to
         take with respect thereto;

                  (f) contemporaneously with, or promptly following,  the filing
         or mailing  thereof,  copies of all material  filed with the Securities
         and Exchange  Commission or sent to the  stockholders  of the Parent or
         any of the Borrowers; and

                  (g) from time to time,  such  other  financial  data and other
         information  (including  accountants'  management letters) as the Banks
         may reasonably request.

     The  Borrowers  hereby  authorize  the Banks to  disclose  any  information
obtained pursuant to this Agreement to all appropriate  governmental  regulatory
authorities where required by law; provided,  however,  that the Banks shall, to
the extent  practicable and allowable  under law, notify the Borrowers  within a
reasonable  period prior to the time any such  disclosure is made;  and provided
further,  that  this  authorization  shall  not be  deemed to be a waiver of any
rights to object to the  disclosure by the Banks of any such  information  which
any Borrower has or may have under the federal Right to Financial Privacy Act of
1978, as in effect from time to time.

     ss.6.5.  Corporate  Existence  and Conduct of  Business.  Except  where the
failure of a Borrower  to remain so  qualified  would not  materially  adversely
impair the financial  condition of the Borrowers on a consolidated  basis,  each
Borrower  will do or cause to be done all things  necessary to preserve and keep
in  full  force  and  effect  its  corporate  existence,  corporate  rights  and
franchises;   effect  and  maintain  its  foreign   qualifications,   licensing,
domestication or authorization except as terminated by its Board of Directors in
the exercise of its reasonable  judgment;  and shall not become  obligated under
any contract or binding arrangement which, at the time it was entered into would
materially  adversely  impair the  financial  condition  of the  Borrowers  on a
consolidated  basis.  Each  Borrower  will  continue to engage  primarily in the
businesses now conducted by it and in related businesses.

     ss.6.6.  Maintenance of  Properties.  The Borrowers will cause all material
properties  used or useful in the conduct of their  businesses  to be maintained
and kept in good condition,  repair and working order  (reasonable wear and tear
excepted) and supplied  with all  necessary  equipment and will cause to be made
all necessary  repairs,  renewals,  replacements,  betterments and  improvements
thereof,  all as in the judgment of the  Borrowers  may be necessary so that the
businesses carried on in connection therewith may be properly and advantageously
conducted at all times;  provided,  however,  that nothing in this section shall
prevent any Borrower from (i) discontinuing the operation and maintenance of any
of its properties if such  discontinuance  is, in the judgment of such Borrower,
desirable in the conduct of its or their  business and does not in the aggregate
have a material  adverse  effect on the business or  financial  condition of the
Borrowers  taken as a  whole,  or (ii)  conducting  a sale of  assets  permitted
pursuant to ss.7.4 hereof.

     ss.6.7.  Insurance.  The Borrowers will maintain with financially sound and
reputable insurance  companies,  funds or underwriters'  insurance of the kinds,
covering the risks (other than risks arising out of or in any way connected with
personal  liability of any officers and  directors  thereof) and in the relative
proportionate  amounts  usually  carried by  reasonable  and  prudent  companies
conducting  businesses  similar to that of the  Borrowers,  but in no event less
than the amounts and  coverages  set forth in Schedule 6.7 hereto as affected by
adjustments to retention levels in the ordinary course of business. In addition,
the  Borrowers  will  furnish  from time to time,  upon the Agent's  request,  a
summary of the insurance coverage of each of the Borrowers,  which summary shall
be in form and  substance  satisfactory  to the Agent and, if  requested  by the
Agent, will furnish to the Agent copies of the applicable policies.

     ss.6.8. Taxes. The Borrowers will each duly pay and discharge,  or cause to
be paid and  discharged,  before  the same  shall  become  overdue,  all  taxes,
assessments and other  governmental  charges (other than taxes,  assessments and
other  governmental  charges  imposed  by  foreign  jurisdictions  which  in the
aggregate are not material to the business or assets of the Borrowers taken as a
whole) imposed upon it and its real  properties,  sales and  activities,  or any
part thereof, or upon the income or profits therefrom, as well as all claims for
labor,  materials,  or  supplies,  which if unpaid might by law become a lien or
charge upon any of its property other than a Permitted Lien; provided,  however,
that any such tax,  assessment,  charge,  levy or claim  need not be paid if the
validity  or amount  thereof  shall  currently  be  contested  in good  faith by
appropriate  proceedings  and if such Borrower shall have set aside on its books
adequate  reserves  with  respect  thereto;  and  provided,  further,  that such
Borrower  will  pay all such  taxes,  assessments,  charges,  levies  or  claims
forthwith upon the  commencement  of proceedings to foreclose any lien which may
have attached as security therefor.

     ss.6.9. Inspection of Properties, Books, and Contracts. The Borrowers shall
permit the Banks,  the Agent or any of their  designated  representatives,  upon
reasonable  notice to the Parent,  to visit and inspect any of the properties of
the Borrowers,  to examine the books of account of the Borrowers  (including the
making of periodic  accounts  receivable  reviews),  or  contracts  (and to make
copies thereof and extracts therefrom), and to discuss the affairs, finances and
accounts  of the  Borrowers  with,  and to be advised  as to the same by,  their
officers, all at such times and intervals as the Banks may reasonably request.

     ss.6.10. Compliance with Laws, Contracts, Licenses and Permits; Maintenance
of  Material  Licenses  and  Permits.  Each  Borrower  will (i) comply  with the
provisions  of  its  charter  documents  and  by-laws  and  all  agreements  and
instruments by which it or any of its  properties may be bound;  and (ii) comply
with  all  applicable  laws  and  regulations  (including  Environmental  Laws),
decrees, orders, judgments, licenses and permits, including, without limitation,
all environmental permits hereto ("Applicable Laws"), except where noncompliance
in the case of (i) and (ii) above  would not have a material  adverse  effect in
the aggregate on the consolidated financial condition, properties or business of
the Borrowers  taken as a whole, or would not impair the ability of any Borrower
or  International  Signatory to enter into or perform the Loan Documents.  If at
any time while the Notes,  or any Loan or Letter of Credit is outstanding or any
Bank or the Agent has any  obligation  to make Loans or issue  Letters of Credit
hereunder,  any  authorization,  consent,  approval,  permit or license from any
officer,  agency or  instrumentality of any government shall become necessary or
required  in  order  that  any  Borrower  may  fulfill  any of  its  obligations
hereunder,  such  Borrower  will  immediately  take or  cause  to be  taken  all
reasonable steps within the power of such Borrower to obtain such authorization,
consent,  approval,  permit or  license  and  furnish  the Banks  with  evidence
thereof.

     ss.6.11.  ENVIRONMENTAL  INDEMNIFICATION.  THE BORROWERS COVENANT AND AGREE
THAT THEY WILL  INDEMNIFY  AND HOLD THE BANKS  HARMLESS FROM AND AGAINST ANY AND
ALL CLAIMS, EXPENSE,  DAMAGE, LOSS OR LIABILITY INCURRED BY THE BANKS (INCLUDING
ALL COSTS OF LEGAL  REPRESENTATION  INCURRED  BY THE BANKS)  RELATING TO (A) ANY
RELEASE OR THREATENED RELEASE OF HAZARDOUS SUBSTANCES ON THE REAL PROPERTY;  (B)
ANY VIOLATION OF ANY  ENVIRONMENTAL  LAWS WITH RESPECT TO CONDITIONS AT THE REAL
PROPERTY  OR THE  OPERATIONS  CONDUCTED  THEREON;  OR (C) THE  INVESTIGATION  OR
REMEDIATION  OF OFFSITE  LOCATIONS AT WHICH THE BORROWERS OR THEIR  PREDECESSORS
ARE ALLEGED TO HAVE DIRECTLY OR INDIRECTLY DISPOSED OF HAZARDOUS SUBSTANCES.  IT
IS EXPRESSLY ACKNOWLEDGED BY THE BORROWERS THAT THIS COVENANT OF INDEMNIFICATION
SHALL INCLUDE CLAIMS,  EXPENSE,  DAMAGE, LOSS OR LIABILITY INCURRED BY THE BANKS
BASED  UPON  THE  BANKS'  NEGLIGENCE,   AND  THIS  COVENANT  SHALL  SURVIVE  ANY
FORECLOSURE  OR ANY  MODIFICATION,  RELEASE  OR  DISCHARGE  OF THE STOCK  PLEDGE
AGREEMENTS  OR THE  PAYMENT OF THE LOANS AND SHALL  INURE TO THE  BENEFIT OF THE
BANKS, THEIR SUCCESSORS AND ASSIGNS.

     ss.6.12.  Further  Assurances.  The Borrowers will cooperate with the Banks
and execute such further instruments and documents as the Banks shall reasonably
request to carry out to the Banks' satisfaction the transactions contemplated by
this Agreement.

     ss.6.13.  Notice of Potential  Claims or  Litigation.  The Borrowers  shall
deliver to the Banks,  within 30 days of receipt thereof,  written notice of the
initiation of any action,  claim,  complaint,  or any other notice of dispute or
potential  litigation  wherein the potential  liability would be material to the
Borrowers taken as a whole under the regulations of the United States Securities
and Exchange  Commission,  together with a copy of each such notice  received by
the Parent or any of its Subsidiaries.

     ss.6.14. Notice of Default. The Borrowers will promptly notify the Banks in
writing of the  occurrence  of any  Default or Event of  Default.  If any Person
shall give any notice or take any other  action in respect of a claimed  default
(whether or not  constituting  an Event of Default)  under this Agreement or any
other note, evidence of indebtedness,  indenture or other obligation  evidencing
indebtedness  in excess of  $1,000,000  as to which any  Borrower  is a party or
obligor,  whether as principal or surety,  the Borrowers  shall  forthwith  give
written  notice  thereof to the Banks,  describing  the notice of action and the
nature of the claimed default.

     ss.7.  CERTAIN  NEGATIVE  COVENANTS OF THE BORROWERS.  The Borrowers  agree
that, so long as any Loan,  Reimbursement  Obligation or any Note is outstanding
or the Banks have any  obligation to make Loans or the Agent has any  obligation
to issue, extend or renew any Letters of Credit hereunder:

     ss.7.1.  Restrictions on Funded Debt. None of the Borrowers shall become or
be a guarantor or surety of, or otherwise create, incur, assume, or be or remain
liable, contingently or otherwise, with respect to any Funded Debt, or become or
be responsible in any manner (whether by agreement to purchase any  obligations,
stock,  assets,  goods or services,  or to supply or advance any funds,  assets,
goods or services  or  otherwise)  with  respect to any Funded Debt of any other
Person, or incur any Funded Debt other than:

                  (a)      Indebtedness to the Banks and the Agent arising under
                           this Agreement or the Loan Documents;

                  (b)      Subordinated Debt of the Parent;

                  (c) Existing Funded Debt listed on Schedule 7.1(c) hereto,  on
         the terms and conditions in effect as of the date hereof, together with
         any renewals, extensions or refinancings thereof on terms which are not
         materially  different  than  those in  effect  as of the  date  hereof;
         provided  that no more  than  $5,000,000  of such  indebtedness  may be
         prepaid without prior written consent of the Banks;

                  (d) Funded Debt incurred in connection with acquisitions after
         the  date  hereof  of any  stocks  of,  partnership  or  joint  venture
         interests  in, or assets of any  Person and owing to the  seller(s)  of
         such  stocks,  partnership  or  joint  venture  interests,  or  assets;
         provided that the  principal  amount of any such Funded Debt owed (when
         aggregated  with all such other Funded Debt permitted  pursuant to this
         ss.7.1(d)) shall not exceed $10,000,000;  and provided,  further,  that
         such acquisitions shall be otherwise permitted pursuant to ss.7.4; and

                  (e)  Other  Funded  Debt  not  to  exceed  $10,000,000  in the
         aggregate  incurred after the date hereof  (including  existing  Funded
         Debt of any Borrower  acquired pursuant to ss.7.4 hereof after the date
         hereof).

     ss.7.2.  Restrictions on Liens.  None of the Borrowers will create or incur
or suffer to be created or incurred or to exist any lien, encumbrance, mortgage,
pledge,  charge,  restriction  or other  security  interest of any kind upon any
property or assets of any character, whether now owned or hereafter acquired, or
upon the income or profits therefrom; or transfer any of such property or assets
or the income or profits therefrom for the purpose of subjecting the same to the
payment of  indebtedness  or performance of any other  obligation in priority to
payment of its  general  creditors;  or  acquire,  or agree or have an option to
acquire,  any property or assets upon  conditional sale or other title retention
or purchase money security agreement,  device or arrangement; or suffer to exist
for a period  of more than  thirty  (30) days  after  the same  shall  have been
incurred any indebtedness or claim or demand against it which if unpaid might by
law or upon  bankruptcy  or  insolvency,  or  otherwise,  be given any  priority
whatsoever  over its general  creditors;  or sell,  assign,  pledge or otherwise
transfer any accounts,  contract rights,  general  intangibles or chattel paper,
with or without recourse, except as follows (the "Permitted Liens"):

                  (a) Liens securing  Funded Debt permitted  under  ss.ss.7.1(d)
         and 7.1(e)  incurred in  connection  with the lease or  acquisition  of
         property or fixed  assets  useful or intended to be used in carrying on
         the business of the Borrowers,  provided that such Liens shall encumber
         only the  property or assets so acquired  and shall not exceed the fair
         market value thereof and provided  further that the aggregate amount of
         Funded Debt secured by such liens shall not exceed $5,000,000;

                  (b) Liens to secure taxes,  assessments  and other  government
         charges  or claims  for  labor,  material  or  supplies  in  respect of
         obligations not overdue;

                  (c) Deposits or pledges made in connection  with, or to secure
         payment of, workmen's  compensation,  unemployment  insurance,  old age
         pensions or other social security obligations;

                  (d) Liens in respect of judgments or awards which have been in
         force for less than the applicable  period for taking an appeal so long
         as  execution  is not  levied  thereunder  or in  respect  of which any
         Borrower  shall at the time in good faith be  prosecuting  an appeal or
         proceedings  for review  and in  respect  of which a stay of  execution
         shall have been  obtained  pending such appeal or review and in respect
         of which the Borrowers have maintained adequate reserves;

                  (e)   Liens   of   carriers,   warehousemen,   mechanics   and
         materialmen,  and other like liens, in existence less than  one-hundred
         and twenty  (120) days from the date of creation  thereof in respect of
         obligations not overdue;

                  (f)  Encumbrances  consisting  of  easements,  rights  of way,
         zoning  restrictions,  restrictions  on the  use of real  property  and
         defects and irregularities in the title thereto, landlord's or lessor's
         liens under  leases to which any  Borrower is a party,  and other minor
         liens or  encumbrances  none of which in the opinion of the  respective
         Borrower interferes materially with the use of the property affected in
         the ordinary conduct of the business of such Borrower, which defects do
         not  individually or in the aggregate have a material adverse effect on
         the business of such  Borrower  individually  or of the  Borrowers on a
         consolidated basis;

                  (g) Liens  (including  Liens  securing  Funded Debt  permitted
         under ss.7.1(c))  existing as of the date hereof and listed on Schedule
         7.2(g) on the terms and conditions in effect as of the date hereof;

                  (h)  Existing  Liens  in  connection  with  the  Fleet  Credit
         Agreement and the First Union mortgages,  provided that the proceeds of
         the initial Loan  advanced  hereunder  shall be used to discharge  such
         Liens;

                  (i) Liens granted pursuant to the Stock Pledge Agreements; and

                  (j) Other Liens securing  indebtedness in an aggregate  amount
not to exceed $500,000 at any time.

     ss.7.3.  Restrictions on  Investments.  None of the Borrowers shall make or
permit to exist or to remain outstanding any other Investment other than:

                  (a) marketable direct or guaranteed  obligations of the United
         States of  America  or any  agency  or  instrumentality  thereof  fully
         guaranteed  or  otherwise  fully backed by the full faith and credit of
         the United States  Government  that mature within one (1) year from the
         date of purchase by the Borrower;

                  (b)  demand   deposits,   certificates  of  deposit,   bankers
         acceptances  and time  deposits  of  United  States  banks or  Eligible
         Foreign Banks having total assets in excess of $1,000,000,000;

                  (c) securities  commonly known as "commercial paper" issued by
         a  corporation  organized  and  existing  under the laws of the  United
         States of America  or any state  thereof  that at the time of  purchase
         have been  rated and the  ratings  for which are not less than "P 1" if
         rated by Moody's Investors  Services,  Inc., and not less than "A 1" if
         rated by Standard and Poor's;

                  (d) Subject to ss.7.1 and ss.7.4, Investments by any Borrower 
in any other Borrower; and

                  (e) Investments by any Borrower in any affiliate or Subsidiary
         of a Borrower  which is not also a  Borrower  (which  may  include  the
         MasTec International Group or other non-U.S.  entities) or in any other
         Person,  provided,  however,  that the  aggregate  amount from the date
         hereof of such  Investments  outstanding  at any time  shall not exceed
         $15,000,000 plus

                           (i) the  lesser of (A) the sum of net cash  proceeds
                  received  in  connection  with the sale of the Cempresa,  S.A.
                  and Supercanal  Holding,  S.A.  investments  and the issuance 
                  of common stock of the Parent after the date hereof or
                  (B) $35,000,000;

                  plus

                           (ii) with the prior  consent of the  Majority  Banks,
                  (A) 50% of net cash proceeds  received in connection  with the
                  issuance of  Subordinated  Debt after the date hereof plus (B)
                  without  double  counting any such amounts  included in (i)(A)
                  hereof,  up to 75% of net cash proceeds received in connection
                  with the issuance of common stock of the Parent after the date
                  hereof;

provided,  however,  that the aggregate amount of (ii) hereof shall not exceed 
$100,000,000.

     Notwithstanding  (e) above, none of the Borrowers shall make any Investment
in any  Subsidiary  which is not a Borrower  hereunder  unless,  both before and
after giving effect thereto,  there does not exist a Default or Event of Default
and no  Default  or Event of  Default  would be  created  by the  making of such
Investment.

     ss.7.4.  Mergers,  Consolidations,  Sales. None of the Borrowers shall be a
party to any  merger,  consolidation  or  exchange  of  stock,  or  purchase  or
otherwise  acquire  all or  substantially  all of the assets or stock of, or any
partnership  or joint venture  interest in, any other Person except as otherwise
provided in this ss.7.4, or sell, transfer,  convey or lease any assets or group
of assets  (except  sales of equipment  tools,  parts and related  assets in the
ordinary course of business,  sales of assets totaling an aggregate amount, from
the date hereof  through the Maturity  Date,  of no more than  $10,000,000,  and
dispositions  listed  on  Schedule  7.4)  or  sell or  assign,  with or  without
recourse,  any receivables (except to another Borrower). A Borrower may purchase
or  otherwise  acquire  all or  substantially  all of the assets or stock of any
class of, or joint venture interest in, any Person provided that (a) at the time
of such  acquisition,  no  Default  or  Event of  Default  has  occurred  and is
continuing, and such acquisition will not otherwise create a Default or an Event
of Default  hereunder;  (b) the business to be acquired is  predominantly in the
same lines of  business  as the  Borrowers,  or  businesses  reasonably  related
thereto;  (c) the aggregate cash consideration to be paid in connection with any
such acquisition  (including  deferred  payments and the aggregate amount of all
Funded  Debt  assumed,  but  excluding  contingent  payments)  shall not  exceed
$10,000,000; (d) the Borrowers are in current compliance with and, giving effect
to the proposed  acquisition  (including  any  borrowings  made or to be made in
connection  therewith),  will  continue  to be in  compliance  with  all  of the
covenants  in ss.8  hereof on a pro forma  historical  combined  basis as if the
transaction  occurred on the first day of the period of measurement,  and in the
event that the aggregate cash  consideration  given in connection  with any such
acquisition  exceeds  $7,500,000,  including deferred payments and the aggregate
amount of all  liabilities  assumed,  the Banks shall have been  provided with a
Compliance Certificate demonstrating such compliance; (e) the board of directors
and (if required by applicable law) the shareholders, or the equivalent thereof,
of the business to be acquired has approved such  acquisition;  (f) the business
to be acquired operates  predominantly in the continental  United States; (g) in
the case of an asset  acquisition,  all of the  assets to be  acquired  shall be
owned by an  existing  or newly  created  Subsidiary  of the  Parent  which is a
Borrower,  all of the stock of which that is directly or indirectly owned by the
Parent has been or will be  pledged to the Agent on behalf of the Banks,  or, in
the case of a stock  acquisition,  the acquired company shall become or shall be
merged with a wholly-owned Subsidiary of the Parent which is a Borrower, 100% of
the  stock of which  has been or will be  pledged  to the Agent on behalf of the
Banks;  and (h) if such  acquisition is made by a merger,  the surviving  entity
shall be a Borrower, 100% of the stock of which shall be pledged to the Agent on
behalf of the Banks.  Any Borrower may merge with any other Borrower.

     ss.7.5.  Sale and  Leaseback.  None of the  Borrowers  shall enter into any
arrangement, directly or indirectly, whereby any Borrower shall sell or transfer
any property  owned by it in order then or  thereafter to lease such property or
lease other property which such Borrower  intends to use for  substantially  the
same  purpose as the  property  being  sold or  transferred,  without  the prior
written consent of the Banks;  other than such arrangements  which do not in the
aggregate exceed $100,000.

     ss.7.6. Restricted Distributions and Redemptions. None of the Borrowers may
make  Distributions  except as set forth in this ss.7.6.  Each Borrower may make
distributions  payable  solely  in  common  stock  or  preferred  stock  of such
Borrower,  subject  to the  requirement  to pledge all such  stock  pursuant  to
ss.5.19 hereof. Borrowers other than the Parent may declare or pay Distributions
to the Parent.  In addition,  the  Borrowers  (other than the Parent)  shall not
redeem,  convert,  retire or  otherwise  acquire  shares of any class of capital
stock of such Borrowers. The Parent may declare or pay dividends and may redeem,
convert, retire, or otherwise acquire shares of its capital stock, provided that
the aggregate  amount of all such  Distributions  by the Parent shall not exceed
50% of Consolidated Net Income in any one fiscal year. None of the Borrowers may
make any Distribution  under this ss.7.6 if a Default or Event of Default exists
or would be created by the making of such Distribution.  The Borrowers shall not
effect or permit  any  change in or  amendment  to any  document  or  instrument
pertaining  to the terms of the  Borrowers'  or the  International  Signatories'
capital  stock  other  than  the  amendment  to  the  Parent's   certificate  of
incorporation increasing the authorized amount of common stock and the par value
of the common stock and the preferred stock.

     ss.7.7.  Employee  Benefit  Plans.  None of the  Borrowers  nor  any  ERISA
Affiliate will:

                  (a) engage in any "prohibited  transaction" within the meaning
         of ss.406  of ERISA or  ss.4975  of the Code  which  could  result in a
         material liability for the Borrowers taken as a whole; or

                  (b)  permit   any   Guaranteed   Pension   Plan  to  incur  an
         "accumulated  funding deficiency," as such term is defined in ss.302 of
         ERISA, whether or not such deficiency is or may be waived; or

                  (c) fail to  contribute to any  Guaranteed  Pension Plan to an
         extent  which,  or terminate  any  Guaranteed  Pension Plan in a manner
         which,  could result in the  imposition of a lien or encumbrance on the
         assets of any Borrower pursuant to ss.302(f) or ss.4068 of ERISA; or

                  (d)  amend  any  Guaranteed   Pension  Plan  in  circumstances
         requiring  the  posting  of  security  pursuant  to  ss.307 of ERISA or
         ss.401(a)(29) of the Code; or

                  (e)  permit  or take any  action  which  would  result  in the
         aggregate benefit  liabilities (within the meaning of ss.4001 of ERISA)
         of all  Guaranteed  Pension Plans  exceeding the value of the aggregate
         assets  of such  Plans,  disregarding  for  this  purpose  the  benefit
         liabilities  and  assets  of any such  Plan  with  assets  in excess of
         benefit liabilities.

     The Borrowers will (i) promptly upon filing the same with the Department of
Labor or  Internal  Revenue  Service,  furnish  to the  Banks a copy of the most
recent actuarial statement required to be submitted under ss.103(d) of ERISA and
Annual  Report,  Form 5500,  with all required  attachments,  in respect of each
Guaranteed  Pension Plan and (ii) promptly upon receipt or dispatch,  furnish to
the Banks  any  notice,  report  or demand  sent or  received  in  respect  of a
Guaranteed  Pension Plan under ss.ss.302,  4041, 4042, 4043, 4063, 4066 and 4068
of ERISA, or in respect of a Multiemployer Plan, under ss.ss.4041A,  4202, 4219,
4242, or 4245 of ERISA.

     ss.7.8.  Negative  Pledges.  Except for Permitted  Liens,  no Borrower will
pledge any of its assets to any Person  other than to the Agent for the  benefit
of the Banks,  nor will any Borrower grant any negative  pledges on their assets
to any Person other than hereunder.

     ss.7.9.  Pledges of Stock of the Sintel Group.  So long as the Sintel Stock
Pledge Agreement or any successor  agreement has not been terminated pursuant to
ss.11  hereof,  Sintel  will not pledge any of the  capital  stock of the Sintel
Group to any Person  other than to the Agent for the  benefit of the Banks,  nor
will Sintel grant any negative  pledges on the capital stock of the Sintel Group
to any Person other than hereunder.

     ss.7.10.  Newly-Created Subsidiaries. No Borrower shall create a Subsidiary
which is not a U.S. Subsidiary.

     ss.8.  FINANCIAL  COVENANTS OF THE BORROWERS.  The Borrowers agree that, so
long as any Loan,  Reimbursement  Obligation or any Note is  outstanding  or the
Banks  have any  obligation  to make  Loans or the Agent has any  obligation  to
issue,  extend or renew any Letters of Credit hereunder,  they shall comply with
the following covenants:

     ss.8.1.  Leverage  Ratios.  As of  the  end of any  fiscal  quarter  of the
Borrowers  commencing  with the fiscal  quarter  ending March 31, 1997,  (a) the
ratio of (i) Senior Debt to (ii)  EBITDA for the period of four (4)  consecutive
fiscal quarters  ending on such date shall not exceed 2.50:1,  and (b) the ratio
of (i) Funded Debt to (ii) EBITDA for the period of four (4) consecutive  fiscal
quarters ending on such date shall not exceed 3.00:1.

     ss.8.2.  Capital Expenditures.  In any fiscal year, the Borrowers shall not
make or  commit  to  make  Capital  Expenditures  in  excess  of two  times  the
consolidated  depreciation and  amortization  expenses of the Borrowers for such
fiscal year.

     ss.8.3. Interest Coverage Ratio. As of the end of any fiscal quarter of the
Borrowers commencing with the fiscal quarter ending March 31, 1997, the ratio of
(a) EBIT for the period of four (4)  consecutive  fiscal quarters ending on such
date to (b)  Consolidated  Total  Interest  Expense for such period shall not be
less than 4.00:1.

     ss.8.4.  Liquidity.  As of the end of any fiscal  quarter of the  Borrowers
commencing  with the fiscal  quarter ending March 31, 1997, (i) the ratio of (a)
Qualified Accounts  Receivable to (b) the sum of trade payables of the Borrowers
shall not be less than  1.40:1,  and (ii) the  ratio of (a)  Qualified  Accounts
Receivable to (b) Accounts Receivable shall not be less than 0.70:1.

     ss.8.5.  Profitable Operations.  The Borrowers will not permit Consolidated
Net Income to be less than $0 for any two consecutive fiscal quarters.

     ss.9. CLOSING CONDITIONS.

     The  obligations  of the  Banks to make the  Loans  and the  Agent to issue
Letters of Credit on the  Closing  Date and  otherwise  be bound by the terms of
this  Agreement  shall be subject to the  satisfaction  of each of the following
conditions precedent:

     ss.9.1.  Corporate  Action.  All corporate  action  necessary for the valid
execution, delivery and performance by each Borrower and International Signatory
of the Loan Documents shall have been duly and effectively  taken,  and evidence
thereof  satisfactory  to the Agent  shall  have  been  provided  to the  Agent;
provided,  however,  that  Sintel  shall have ninety (90) days after the Closing
Date to effect this provision.

     ss.9.2.  Loan  Documents,  Etc. Each of the Loan Documents  shall have been
duly and properly  authorized,  executed and delivered by the respective parties
thereto  and shall be in full  force and  effect in a form  satisfactory  to the
Banks;  provided,  however,  that  Sintel  shall have ninety (90) days after the
Closing Date to effect this provision.

         ss.9.3.  Certified  Copies of Charter  Documents.  The Agent shall have
received from each of the Borrowers  and the  International  Signatories a copy,
certified by a duly authorized officer of such Person to be true and complete on
the date  hereof,  of each of (a) its charter or other  incorporation  documents
(including certificates of merger and name changes) as in effect on such date of
certification, and (b) its by-laws as in effect on such date; provided, however,
that Sintel  shall have  ninety (90) days after the Closing  Date to effect this
provision.

     ss.9.4. Incumbency Certificate. The Agent shall have received an incumbency
certificate,  dated as of the date hereof,  signed by duly  authorized  officers
giving the name and bearing a specimen signature of each individual who shall be
authorized:  (a) to sign the Loan  Documents on behalf of the  Borrowers and the
International  Signatories;  (b) to make Loan and Letter of Credit Requests; and
(c) to  give  notices  and to  take  other  action  on the  Borrowers'  and  the
International Signatories' behalf under the Loan Documents;  provided,  however,
that Sintel  shall have  ninety (90) days after the Closing  Date to effect this
provision.

     ss.9.5.  Validity of Liens.  Each of the Stock Pledge  Agreements  shall be
effective to create in favor of the Agent a legal,  valid and enforceable  first
security  interest in and lien upon the  Collateral,  subject  only to Permitted
Liens.  All filings,  recordings,  deliveries of  instruments  and other actions
necessary or desirable in the opinion of the Agent to protect and preserve  such
security interests shall have been duly effected.  The Agent shall have received
evidence  thereof in form and  substance  satisfactory  to the Agent;  provided,
however,  that the  International  Signatories shall have ninety (90) days after
the Closing Date to effect this provision.

     ss.9.6.  UCC Search  Results.  The Agent shall have received the results of
UCC  searches  with  respect to the  Borrowers  indicating  no liens  other than
Permitted Liens and otherwise in form and substance satisfactory to the Agent.

     ss.9.7.  Certificates  of  Insurance.  The Agent shall have  received (a) a
certificate of insurance from an  independent  insurance  broker dated as of the
date hereof,  or within fifteen (15) days prior thereto,  identifying  insurers,
types of insurance, insurance limits, and policy terms, and otherwise describing
the  insurance  coverage  of the  Borrowers  and  (b)  copies  of  all  policies
evidencing such insurance (or certificates  therefor signed by the insurer or an
agent authorized to bind the insurer).

     ss.9.8.  Opinion of Counsel.  The Banks shall have received favorable legal
opinions from general counsel to the Borrowers, addressed to the Banks, dated as
of the date hereof,  in form and substance  satisfactory to the Agent.  Opinions
satisfactory  to the Agent  regarding the Sintel Stock Pledge  Agreement and the
International Pledge Documents (defined therein) shall be received within ninety
(90) days of the date hereof.

     ss.9.9. Certificate of Financial Condition. The Agent shall have received a
certificate  from the CFO  satisfactory to the Agent certifying that no material
adverse change has occurred in the financial  condition,  results of operations,
business,  properties or prospects of the Borrowers, taken as a whole, since the
date of the most recent  financial  statements and  projections  provided to the
Banks.

     ss.9.10.  Initial Compliance  Certificate.  The Agent shall have received a
Compliance Certificate regarding compliance with the covenants set forth in ss.8
hereof as of the Closing Date.

     ss.9.11. Interim Balance Sheets and Income Statements. The Agent shall have
received an unaudited  consolidated balance sheet and statement of income of the
Parent dated the Interim Balance Sheet Date,  including  reconciliations  of (A)
the  Borrowers  (excluding  that  portion  of  assets,  liabilities,  income and
expenses of the Parent  attributable to non-Borrowers) and (B) the non-Borrowers
to the consolidated  balance sheet and statement of income of the Parent,  which
balance sheet and statement of income shall be attached hereto as Schedule 9.11.

     ss.9.12.  Payoff Letters. The Banks shall have received payoff letters from
Fleet Financial Corporation ("Fleet") with respect to the Fleet Credit Agreement
and from First Union regarding its mortgages indicating the amount to be paid to
such lenders on the Closing Date in order to fully discharge such obligations to
the  lenders  and  acknowledging  that  upon  receipt  of such  funds  each will
forthwith execute and deliver to the Agent for filing all termination statements
and take such other  actions as may be necessary to discharge  all mortgages and
security interests in favor of such lender.

     ss.10. CONDITIONS OF ALL LOANS.

     The obligations of the Banks to make any Loan (including without limitation
the  obligation of the Agent to issue any Letter of Credit) on and subsequent to
the Closing Date is subject to the following conditions precedent:

     ss.10.1.   Representations   True;  No  Event  of  Default.   Each  of  the
representations  and warranties of the Borrowers  contained in this Agreement or
in any document or instrument  delivered  pursuant to or in connection with this
Agreement shall be true as of the date as of which they were made and shall also
be true at and as of the time of any  Drawdown  Date with the same  effect as if
made at and as of that time  (except  to the extent of  changes  resulting  from
transactions  contemplated or permitted by this Agreement and changes  occurring
in the  ordinary  course of business  which singly or in the  aggregate  are not
materially  adverse,  or to the extent that such  representations and warranties
relate  expressly to an earlier  date) and no Default or Event of Default  shall
have occurred and be continuing.

     ss.10.2.  Performance;  No Event  of  Default.  The  Borrowers  shall  have
performed  and  complied  with all terms and  conditions  herein  required to be
performed or complied  with by them prior to or at the time of any Loan,  and at
the time of any Loan,  there shall exist no Event of Default or condition  which
would result in an Event of Default upon  consummation  of such Loan  (including
without  limitation  any  amounts to be drawn  under a Letter of  Credit).  Each
request by the Borrowers for a Loan (including  without  limitation each request
for  issuance  of a  Letter  of  Credit)  subsequent  to the  first  Loan  shall
constitute  certification  by the  Borrowers  that the  conditions  specified in
ss.ss.10.1 and 10.2 will be duly satisfied on the date of such Loan or Letter of
Credit issuance.

     ss.10.3.  No Legal Impediment.  No change shall have occurred in any law or
regulations  thereunder  or  interpretations  thereof  which  in the  reasonable
opinion  of the  Banks  would  make it  illegal  for  the  Banks  to make  Loans
hereunder.

     ss.10.4.  Governmental  Regulation.  The Banks  shall  have  received  such
statements in substance and form  reasonably  satisfactory  to the Banks as they
shall require for the purpose of compliance  with any applicable  regulations of
the Comptroller of the Currency or the Board of Governors of the Federal Reserve
System.

     ss.10.5.  Proceedings and Documents. All proceedings in connection with the
transactions  contemplated by this Agreement and all documents  incident thereto
shall  have  been  delivered  to the  Banks  as of the date  hereof  in form and
substance  satisfactory to the Banks,  including without  limitation a Letter of
Credit and Loan Request in the form attached  hereto as Exhibit C, and the Banks
shall have received all information and such counterpart  originals or certified
or other copies of such documents as the Banks may reasonably request.

     ss.11. COLLATERAL SECURITY. The Obligations shall be secured by a perfected
security  interest  (having,  with respect to each category of  Collateral,  the
respective  rights  and  priorities  set forth  herein  and in the Stock  Pledge
Agreements) in all of the Collateral,  whether now owned or hereafter  acquired,
pursuant to the terms of the Stock Pledge Agreements.  However, provided that no
Default or Event of Default  has  occurred  and is  continuing,  the Agent shall
release  the stock of Sintel  and the  Sintel  Stock  Pledge  Agreement  (or any
successor  agreement)  shall  terminate,  if such release and  termination  is a
required  condition of refinancing  the  indebtedness of Sintel or its immediate
parent (including,  without  limitation,  refinancing  existing  indebtedness to
Telefonica),  provided that the Agent consents to the terms of such refinancing,
which consent shall not be unreasonably withheld.

     ss.12. EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT.

     ss.12.1. Events of Default and Acceleration. If any of the following events
("Events of Default" or, if the giving of notice or the lapse of time or both is
required,  then,  prior to such notice and/or lapse of time,  "Defaults")  shall
occur:

                  (a) the Borrowers shall fail to pay any principal of the Loans
         or any  Reimbursement  Obligations  when the same shall  become due and
         payable,  whether  at the  Maturity  Date  or any  accelerated  date of
         maturity or at any other date fixed for payment;

                  (b) the  Borrowers  shall fail to pay any  interest or fees or
         other amounts owing  hereunder  within five (5) Business Days after the
         same shall become due and payable  whether at the Maturity  Date or any
         accelerated date of maturity or at any other date fixed for payment;

                  (c)      the Borrowers shall fail to comply with the covenants
         contained inss.ss.6.3, 6.5, 6.7, 6.9, 6.13, 6.14, 7 or 8 hereof;

                  (d)      the  Borrowers shall fail to comply with the 
         covenants  contained inss.ss.6.4 or 6.10 hereof and such failure shall
         be continuing for ten (10) days;

                  (e) the Borrowers shall fail to perform any term,  covenant or
         agreement contained herein or in any of the other Loan Documents (other
         than those specified in subsections (a), (b), (c) and (d) above) within
         thirty (30) days after written notice of such failure has been given to
         the Borrowers by the Banks;

                  (f) any representation or warranty contained in this Agreement
         or in any document or instrument delivered pursuant to or in connection
         with this  Agreement  shall  prove to have been  false in any  material
         respect upon the date when made or repeated;

                  (g) any Borrower shall fail to pay at maturity,  or within any
         applicable  period of grace,  any and all  obligations  for Funded Debt
         (other than the  Obligations)  or any Guarantee with respect thereto in
         an  aggregate  amount  greater than  $1,000,000,  or fail to observe or
         perform any  material  term,  covenant or  agreement  contained  in any
         agreement by which it is bound,  evidencing or securing  borrowed money
         in an aggregate  amount greater than $1,000,000 for such period of time
         as would,  or would have permitted  (assuming the giving of appropriate
         notice if required) the holder or holders thereof or of any obligations
         issued thereunder to accelerate the maturity thereof;

                  (h) (i) any Borrower  makes an  assignment  for the benefit of
         creditors, or admits in writing its inability to pay or generally fails
         to pay its debts as they mature or become due, or  petitions or applies
         for the  appointment  of a trustee or other  custodian,  liquidator  or
         receiver of any  Borrower or of any  substantial  part of the assets of
         any Borrower or commences any case or other proceeding  relating to any
         Borrower under any bankruptcy, reorganization, arrangement, insolvency,
         readjustment of debt,  dissolution or liquidation or similar law of any
         jurisdiction,  now or  hereafter  in  effect,  or takes  any  action to
         authorize or in  furtherance  of any of the  foregoing  (other than the
         dissolution of Subsidiaries  with assets,  liabilities and projected or
         anticipated  revenues  of less than (in each such case)  $100,000);  or
         (ii) any such  petition  or  application  is filed or any such  case or
         other proceeding is commenced  against any Borrower and or any Borrower
         indicates  its  approval  thereof,   consent  thereto  or  acquiescence
         therein;

                  (i) a decree or order is entered  appointing any such trustee,
         custodian, liquidator or receiver or adjudicating any Borrower bankrupt
         or  insolvent,  or  approving  a  petition  in any  such  case or other
         proceeding,  or a decree or order for  relief is  entered in respect of
         any Borrower in an involuntary  case under federal  bankruptcy  laws as
         now or  hereafter  constituted,  and such  decree or order  remains  in
         effect for more than sixty (60) days, whether or not consecutive;

                  (j) there shall remain in force, undischarged, unsatisfied and
         unstayed,  for more than thirty (30) days,  whether or not consecutive,
         any final judgment against any Borrower which,  with other  outstanding
         final  judgments  against  any  Borrower,   exceeds  in  the  aggregate
         $1,000,000 after taking into account any undisputed insurance coverage;

                  (k) any Borrower or any ERISA  Affiliate  incurs any liability
         to the PBGC or a Guaranteed  Pension Plan pursuant to Title IV of ERISA
         in an aggregate amount exceeding $1,000,000;  any Borrower or any ERISA
         Affiliate  is  assessed  withdrawal  liability  pursuant to Title IV of
         ERISA by a  Multiemployer  Plan  requiring  aggregate  annual  payments
         exceeding $1,000,000,  or any of the following occurs with respect to a
         Guaranteed Pension Plan: (i) an ERISA Reportable Event, or a failure to
         make a required  installment  or other  payment  (within the meaning of
         ss.302(f)(1) of ERISA), provided the Agent determines in its reasonable
         discretion that such event (A) could be expected to result in liability
         of  such  Borrower  to the  PBGC  or the  Plan  in an  agregate  amount
         exceeding   $1,000,000  and  (B)  could  constitute   grounds  for  the
         termination  of such  Plan by the  PBGC,  for  the  appointment  by the
         appropriate  United  States  District  Court of a trustee to administer
         such Plan or for the  imposition  of a lien in favor of the  Guaranteed
         Pension Plan; (ii) the appointment by a United States District Court of
         a trustee to administer such Plan; or (iii) the institution by the PBGC
         of proceedings to terminate such Plan;

                  (l) any of the Loan Documents shall be cancelled,  terminated,
         revoked  or  rescinded  otherwise  than in  accordance  with the  terms
         thereof  or with  the  express  prior  written  agreement,  consent  or
         approval of the Banks, or any action at law, suit or in equity or other
         legal proceeding to cancel, revoke or rescind any of the Loan Documents
         shall be  commenced  by or on behalf of the  Borrowers  or any of their
         respective  stockholders,  or any  court or any other  governmental  or
         regulatory  authority or agency of competent  jurisdiction shall make a
         determination that, or issue a judgment, order, decree or ruling to the
         effect that, any one or more of the Loan Documents is illegal,  invalid
         or unenforceable in accordance with the terms thereof; or

                  (m) (i) any person or group of persons  (within the meaning of
         Section 13 or 14 of the  Securities  Exchange Act of 1934,  as amended)
         shall have acquired  beneficial  ownership  (within the meaning of Rule
         13d-3 promulgated by the Securities and Exchange  Commission under said
         Act) of 20% or more of the  outstanding  shares of common  stock of the
         Parent,  or (ii) members of the Jorge L. Mas family cease to own 30% or
         more of the common  stock of the Parent;  or (iii) during any period of
         twelve consecutive  calendar months,  individuals who were directors of
         the Parent on the first day of such period shall cease to  constitute a
         majority of the Board of Directors of the Parent unless the replacement
         directors were nominated by the original directors;

then, and in any such event,  so long as the same may be  continuing,  the Agent
may and,  upon the  request  of the  Banks,  shall,  by notice in writing to the
Borrowers,  declare all amounts owing with respect to this Agreement,  the Notes
and the other Loan Documents and all  Reimbursement  Obligations to be, and they
shall  thereupon   forthwith   become,   immediately  due  and  payable  without
presentment,  demand,  protest  or other  notice of any  kind,  all of which are
hereby  expressly  waived by the  Borrowers;  provided that, in the event of any
Bankruptcy  Event,  all such amounts  shall become  immediately  due and payable
automatically  and without any requirement of notice from the Agent or any Bank.
Upon  demand by the Banks  after the  occurrence  of any Event of  Default,  the
Borrowers shall immediately  provide to the Agent cash in an amount equal to the
aggregate  Maximum  Drawing  Amount of all  Letters of Credit and  Reimbursement
Obligations outstanding,  to be held by the Agent as collateral security for the
Obligations.

     ss.12.2.  Termination of Commitments.  If any Event of Default shall occur,
any unused portion of the Total Commitment  hereunder shall forthwith  terminate
and the Banks shall be relieved of all further  obligations to make Loans to the
Borrowers  and the Agent shall be relieved of all further  obligations  to issue
Letters of Credit;  or if on any Drawdown Date the  conditions  precedent to the
making  of the Loans to be made on such  Drawdown  Date or the  issuance  of any
Letters  of Credit to be issued  on such  date are not  satisfied  (except  as a
consequence  of a default on the part of the Banks),  the Banks may by notice to
the Borrowers,  terminate the unused portion of the Total Commitment  hereunder,
and upon such Notice being given,  such unused  portion of the Total  Commitment
hereunder  shall  terminate  immediately  and the Banks shall be relieved of all
further  obligations  to make  Loans to the  Borrowers  and the  Agent  shall be
relieved of all further obligations to issue, extend or renew Letters of Credit.
No termination of any portion of the Total  Commitment  hereunder  shall relieve
the Borrowers of any of the Obligations.

     ss.12.3.  Remedies.  Subject  to  ss.14.8,  in case  any one or more of the
Events of Default shall have occurred and be continuing,  and whether or not the
Banks shall have accelerated the maturity of the Loans pursuant to ss.12.1, each
Bank,  if owed  any  amount  with  respect  to the  Loans  or the  Reimbursement
Obligations,  may,  with the consent of the  Majority  Banks but not  otherwise,
proceed to protect and  enforce  its rights by suit in equity,  action at law or
other  appropriate  proceeding,  whether  for the  specific  performance  of any
covenant or agreement  contained in this  Agreement and the other Loan Documents
or any instrument  pursuant to which the Obligations to such Bank are evidenced,
including,  without limitation,  as permitted by applicable law the obtaining of
the ex parte  appointment  of a receiver,  and, if such amount shall have become
due, by declaration or otherwise,  proceed to enforce the payment thereof or any
legal or equitable right of such Bank. No remedy herein  conferred upon any Bank
or the Agent or the  holder  of any Note or  purchaser  of any  Letter of Credit
Participation is intended to be exclusive of any other remedy and each and every
remedy shall be cumulative  and shall be in addition to every other remedy given
hereunder or now or hereafter  existing at law or in equity or by statute or any
other provision of law.

     ss.13.  SETOFF.  Regardless of the adequacy of any  collateral,  during the
continuance  of an Event of Default,  any deposits or other sums  credited by or
due from any Bank to the Borrowers and any  securities or other  property of the
Borrowers  in the  possession  of such Bank may be applied to or set off against
the  payment of the  Obligations  and any and all other  liabilities,  direct or
indirect,  absolute  or  contingent,  due or to  become  due,  now  existing  or
hereafter  arising,  of the  Borrowers to the Banks.  Such Bank shall notify the
Parent and the other Banks of such application or setoff.  The Banks agree among
themselves  that, if a Bank shall obtain payment on any Obligations  outstanding
under this Agreement through the exercise of a right of offset, banker's lien or
counterclaim,  or  from  any  other  source  (other  than  by way of a pro  rata
payment),  it shall promptly notify the Agent thereof and make such  adjustments
with the other Banks as shall be  equitable  to the end that all the Banks shall
share the benefits of such  payments pro rata in  accordance  with the aggregate
unpaid  amount of the Notes held by each Bank  immediately  prior to the payment
obtained by such Bank as aforesaid.  The Banks  further  agree among  themselves
that if any payment to a Bank  obtained by such Bank  through the  exercise of a
right of offset, banker's lien or counterclaim,  or from any other source (other
than by way of a pro rata  payment)  as  aforesaid  shall be  rescinded  or must
otherwise  be  restored,  the Banks who shall have  shared  the  benefit of such
payment shall return their share of that benefit to the Bank whose payment shall
have been rescinded or otherwise restored.

     ss.14. THE AGENT.

     ss.14.1.  Appointment  of Agent,  Powers and  Immunities.  Each Bank hereby
irrevocably  appoints and authorizes the Agent to act as its agent hereunder and
under  the  other  Loan  Documents,  provided,  however,  the  Agent  is  hereby
authorized to serve only as an administrative and collateral agent for the Banks
and to exercise such powers as are reasonably  incidental thereto and as are set
forth  in  this  Agreement  and the  other  Loan  Documents.  The  Agent  hereby
acknowledges  that it does not have the  authority  to negotiate  any  agreement
which would bind the Banks or agree to any amendment,  waiver or modification of
any of the  Loan  Documents  or bind  the  Banks  except  as set  forth  in this
Agreement or the Loan Documents. Except as provided herein and in the other Loan
Documents,  the  Agent  shall  take  action or  refrain  from  acting  only upon
instructions  of the Banks and no action  taken or  failure to act  without  the
consent of the Banks shall be binding on any Bank which has not consented.  Each
Bank irrevocably authorizes the Agent to execute the Stock Pledge Agreements and
all other instruments relating thereto and to take such action on behalf of each
of the Banks and to exercise all such powers as are  expressly  delegated to the
Agent under the Loan  Documents  and all related  documents,  together with such
other powers as are reasonably incidental thereto. It is agreed that the duties,
rights,  privileges  and  immunities of the Agent,  in its capacity as issuer of
Letters  of  Credit  hereunder,  shall  be  identical  to  its  duties,  rights,
privileges and  immunities as a Bank as provided in this ss.14.  The Agent shall
not  have  any  duties,  obligations  or  responsibilities,   or  any  fiduciary
relationship  with any Bank,  except those expressly set forth in this Agreement
and the other Loan Documents.  Without limiting the generality of the foregoing,
the Agent shall not be  required to take any action with  respect to any Default
or Event of Default,  except as expressly  provided in ss.12.  Neither the Agent
nor any of its  affiliates  shall be  responsible to the Banks for any recitals,
statements,  representations  or  warranties  made by the Borrowers or any other
Person  whether  contained  herein  or  otherwise  or for the  value,  validity,
effectiveness, genuineness, enforceability or sufficiency of this Agreement, the
other Loan Documents or any other document referred to or provided for herein or
therein or for any failure by the  Borrowers  or any other Person to perform its
obligations  hereunder or thereunder  or in respect of the Notes.  The Agent may
employ  agents  and  attorneys-in-fact  and  shall  not be  responsible  for the
negligence or misconduct of any such agents or attorneys-in-fact  selected by it
with  reasonable  care.  Neither the Agent nor any of its  directors,  officers,
employees or agents shall be  responsible  for any action taken or omitted to be
taken in good faith by it or them  hereunder or in connection  herewith,  except
for its or their own gross  negligence or willful  misconduct.  The Agent in its
separate  capacity as a Bank shall have the same rights and powers  hereunder as
any other Bank.

         ss.14.2.  Actions  By Agent.  The  Agent  shall be fully  justified  in
failing or refusing to take any action  under this  Agreement  as it  reasonably
deems appropriate unless it shall first have received such advice or concurrence
of the Banks and shall be  indemnified  to its  reasonable  satisfaction  by the
Banks  against any and all  liability and expense which may be incurred by it by
reason of taking or continuing  to take any such action.  The Agent shall in all
cases be fully  protected in acting,  or in refraining  from acting,  under this
Agreement  or any of the Loan  Documents  in  accordance  with a request  of the
Banks,  and such request and any action taken or failure to act pursuant thereto
shall be  binding  upon the Banks  and all  future  holders  of the Notes or any
Letter of Credit Participation.

     ss.14.3. INDEMNIFICATION. WITHOUT LIMITING THE OBLIGATIONS OF THE BORROWERS
HEREUNDER OR UNDER ANY OTHER LOAN  DOCUMENTS,  THE BANKS AGREE TO INDEMNIFY  THE
AGENT, RATABLY IN ACCORDANCE WITH THEIR RESPECTIVE COMMITMENT  PERCENTAGES,  FOR
ANY AND ALL  LIABILITIES,  OBLIGATIONS,  LOSSES,  DAMAGES,  PENALTIES,  ACTIONS,
JUDGMENTS,  SUITS,  COSTS,  EXPENSES  OR  DISBURSEMENTS  OF ANY  KIND OR  NATURE
WHATSOEVER  (OTHER THAN LOSSES WITH RESPECT TO THE AGENT'S PRO RATA SHARE OF THE
OBLIGATIONS)  WHICH HAVE NOT BEEN  REIMBURSED  BY THE BORROWERS AND WHICH MAY AT
ANY TIME BE IMPOSED ON,  INCURRED  BY OR  ASSERTED  AGAINST THE AGENT IN ANY WAY
RELATING TO OR ARISING OUT OF THIS  AGREEMENT OR ANY OTHER LOAN  DOCUMENT OR ANY
DOCUMENTS  CONTEMPLATED BY OR REFERRED TO HEREIN OR THEREIN OR THE  TRANSACTIONS
CONTEMPLATED  HEREBY OR THEREBY OR THE ENFORCEMENT OF ANY OF THE TERMS HEREOF OR
THEREOF OR OF ANY SUCH OTHER DOCUMENTS;  PROVIDED,  THAT NO BANK SHALL BE LIABLE
FOR ANY OF THE  FOREGOING TO THE EXTENT THEY ARISE FROM THE GROSS  NEGLIGENCE OR
WILLFUL  MISCONDUCT OF THE AGENT (OR ANY AGENT THEREOF),  IT BEING THE INTENT OF
THE PARTIES HERETO THAT ALL SUCH  INDEMNIFIED  PARTIES SHALL BE INDEMNIFIED  FOR
THEIR ORDINARY SOLE OR CONTRIBUTORY NEGLIGENCE.

     ss.14.4.  Reimbursement.  Without  limiting the provisions of ss.14.3,  the
Banks and the Agent  hereby  agree  that the Agent  shall not be obliged to make
available  to any Person any sum which the Agent is expecting to receive for the
account of that Person until the Agent has determined  that it has received that
sum. The Agent may,  however,  disburse funds prior to determining that the sums
which the Agent expects to receive have been finally and unconditionally paid to
the Agent,  if the Agent  wishes to do so. If and to the  extent  that the Agent
does disburse  funds and it later  becomes  apparent that the Agent did not then
receive a payment  in an amount  equal to the sum paid out,  then any  Person to
whom the Agent made the funds available shall, on demand from the Agent,  refund
to the Agent the sum paid to that Person.  If, in the opinion of the Agent,  the
distribution  of any amount  received by it in such capacity  hereunder or under
the Loan  Documents  might involve it in  liability,  it may refrain from making
distribution until its right to make distribution shall have been adjudicated by
a court of competent  jurisdiction.  If a court of competent  jurisdiction shall
adjudge that any amount  received and  distributed by the Agent is to be repaid,
each  Person to whom any such  distribution  shall have been made  shall  either
repay to the Agent its  proportionate  share of the  amount  so  adjudged  to be
repaid or shall pay over the same in such manner and to such Persons as shall be
determined by such court.

     ss.14.5. Documents. The Agent will forward to each Bank, promptly after the
Agent's receipt  thereof,  a copy of each notice or other document  furnished to
the Agent for such Bank hereunder;  provided, however, that, notwithstanding the
foregoing,  the Agent may furnish to the Banks a monthly summary with respect to
Letters of Credit  issued  hereunder in lieu of copies of the related  Letter of
Credit Applications.

     ss.14.6.  Non-Reliance on Agent and Other Banks.  Each Bank represents that
it has,  independently  and without reliance on the Agent or any other Bank, and
based on such documents and information as it has deemed  appropriate,  made its
own  appraisal  of the  financial  condition  and affairs of the  Borrowers  and
decision to enter into this  Agreement  and the other Loan  Documents and agrees
that it will,  independently  and without  reliance  upon the Agent or any other
Bank, and based on such documents and  information as it shall deem  appropriate
at the time,  continue to make its own appraisals and decisions in taking or not
taking action under this Agreement or any other Loan  Document.  The Agent shall
not be required to keep  informed as to the  performance  or  observance  by the
Borrowers of this  Agreement,  the other Loan  Documents  or any other  document
referred  to or  provided  for herein or  therein or by any other  Person of any
other agreement or to make inquiry of, or to inspect the properties or books of,
any Person.  Except for notices,  reports and other  documents  and  information
expressly  required to be  furnished  to the Banks by the Agent  hereunder,  the
Agent  shall not have any duty or  responsibility  to provide  any Bank with any
credit  or other  information  concerning  any  person  which  may come into the
possession of the Agent or any of its affiliates. Each Bank shall have access to
all documents  relating to the Agent's  performance  of its duties  hereunder at
such Bank's  request.  Unless any Bank shall promptly object to any action taken
by the Agent  hereunder  (other than actions to which the  provisions of ss.14.8
are  applicable  and other than actions  which  constitute  gross  negligence or
willful  misconduct by the Agent),  such Bank shall  conclusively be presumed to
have approved the same.

     ss.14.7.  Resignation of Agent.  The Agent may resign at any time by giving
60 days' prior written notice  thereof to the Banks and the Borrowers.  Upon any
such  resignation,  the Banks shall have the right to appoint a successor Agent.
If no  successor  Agent shall have been so appointed by the Banks and shall have
accepted such  appointment  within 30 days after the retiring  Agent's giving of
notice of  resignation,  then the  retiring  Agent may,  on behalf of the Banks,
appoint a  successor  Agent,  which shall be a  financial  institution  having a
combined capital and surplus in excess of  $150,000,000.  Upon the acceptance of
any  appointment as Agent hereunder by a successor  Agent,  such successor Agent
shall  thereupon  succeed  to and become  vested  with all the  rights,  powers,
privileges  and duties of the retiring  Agent,  and the retiring  Agent shall be
discharged from its duties and obligations hereunder. After any retiring Agent's
resignation,  the provisions of this Agreement  shall continue in effect for its
benefit in respect  of any  actions  taken or omitted to be taken by it while it
was acting as Agent.  Any new Agent  appointed  pursuant to this  ss.14.7  shall
immediately issue new Letters of Credit in place of Letters of Credit previously
issued by the Agent.

     ss.14.8. Action by the Banks, Consents, Amendments, Waivers, Etc. Except as
otherwise expressly provided in this ss.14.8,  any action to be taken (including
the  giving of  notice)  may be taken or any  consent or  approval  required  or
permitted by the  Agreement or any other Loan  Document to be given by the Banks
may be given,  and any term of this  Agreement,  any other Loan  Document or any
other  instrument,  document or agreement related to this Agreement or the other
Loan  Documents  or  mentioned  therein  may be amended and the  performance  or
observance  by the Borrowers or any other person of any of the terms thereof and
any  Default or Event of  Default  (as  defined  in any of the  above-referenced
documents or  instruments)  may be waived  (either  generally or in a particular
instance  and  either  retroactively  or  prospectively)  only with the  written
consent  of the  Majority  Banks;  provided,  however,  that no such  consent or
amendment  which affects the rights,  duties or liabilities of the Agent (in its
capacity as Agent) shall be effective  without the written consent of the Agent.
Notwithstanding the foregoing,  no amendment,  waiver or consent shall do any of
the following unless in writing and signed by ALL of the Banks: (a) increase the
principal amount of the Total Commitment (or subject the Banks to any additional
obligations),  (b) reduce the principal of or interest on the Notes  (including,
without  limitation,  interest on overdue  amounts) or any fees or other amounts
payable  hereunder,  (c)  postpone  any date fixed for any payment in respect of
principal  or  interest  or  Reimbursement   Obligations   (including,   without
limitation,  interest  on overdue  amounts)  on the Notes,  or any fees or other
amounts  payable  hereunder;  (d)  extend the  expiration  date of any Letter of
Credit beyond the Maturity Date,  (e) change the definition of "Majority  Banks"
or number of Banks which shall be required  for the Banks or any of them to take
any action  under the Loan  Documents;  (f) amend this  ss.14.8;  (g) change the
Commitment  Percentage of any Bank,  except as permitted under ss.17 hereof;  or
(h) except as otherwise permitted in ss.11 hereof, release any Collateral.







     ss.15. EXPENSES.

     The  Borrowers  agree to pay (a) any  taxes  (including  any  interest  and
penalties  in respect  thereto)  payable by the Agent or any of the Banks (other
than Income Taxes) on or with respect to the  transactions  contemplated by this
Agreement  (the Borrowers  hereby  agreeing to indemnify the Agent and each Bank
with respect  thereto),  (b) the reasonable fees,  expenses and disbursements of
the  Agent's  Special  Counsel  or any local  counsel to the Agent  incurred  in
connection with the preparation,  administration  or  interpretation of the Loan
Documents and other instruments  mentioned herein,  each closing hereunder,  and
amendments,  modifications,  approvals, consents or waivers hereto or hereunder,
(c) the fees,  expenses and  disbursements of the Agent incurred by the Agent in
connection with the preparation,  administration  or  interpretation of the Loan
Documents  and  other  instruments   mentioned  herein,   including  all  credit
examination fees, (d) all reasonable  out-of-pocket  expenses (including without
limitation  reasonable  attorneys'  fees  and  costs,  which  attorneys  may  be
employees  of any Bank or the  Agent,  and  reasonable  consulting,  accounting,
appraisal,  investment  banking  and  similar  professional  fees  and  charges)
incurred by any Bank or the Agent in connection  with (i) the  enforcement of or
preservation of rights under any of the Loan Documents  against the Borrowers or
the administration thereof after the occurrence of a Default or Event of Default
and (ii) any  litigation,  proceeding or dispute  whether  arising  hereunder or
otherwise, in any way related to any Bank's or the Agent's relationship with the
Borrowers.  In addition,  the Borrowers  agree to pay and save the Agent and the
Banks harmless against any liability for payment of any state  documentary stamp
taxes,  intangible taxes or similar taxes (including  interest or penalties,  if
any) which may now or  hereafter be  determined  to be payable in respect to the
execution,  delivery  or  recording  of any Loan  Document or the funding of any
Loan, whether originally thought to be due or not, and regardless of any mistake
of fact or law on the part of the Agent, the Banks or the Borrowers with respect
to the  applicability  of such tax. The  covenants  of this ss.15 shall  survive
payment or satisfaction of all other Obligations.

     ss.16.  SURVIVAL OF COVENANTS,  ETC. Unless  otherwise  stated herein,  all
covenants, agreements,  representations and warranties made herein, in the other
Loan Documents or in any documents or other papers  delivered by or on behalf of
the  Borrowers  pursuant  hereto shall be deemed to have been relied upon by the
Banks and the Agent,  notwithstanding any investigation  heretofore or hereafter
made by any of them, and shall survive the making of the Loans and the issuance,
extension or renewal of any Letters of Credit, as herein contemplated, and shall
continue  in full  force  and  effect  so  long as any  amount  due  under  this
Agreement,  any Letter of Credit or the Notes remains  outstanding and unpaid or
any Bank has any obligation to make any Loans or the Agent has any obligation to
issue  any  Letters  of  Credit  hereunder.  All  statements  contained  in  any
certificate or other paper  delivered by or on behalf of the Borrowers  pursuant
hereto  or  in  connection  with  the  transactions  contemplated  hereby  shall
constitute representations and warranties by the Borrowers hereunder.

     ss.17. ASSIGNMENT AND PARTICIPATION.  It is understood and agreed that each
Bank  shall  have the  right to  assign  at any  time  all or a  portion  of its
Commitment  Percentage  and  interests  in  the  risk  relating  to  the  Loans,
outstanding  Letters of Credit, and its Commitment  hereunder in an amount equal
to or greater than $5,000,000  (which assignment shall be of an equal percentage
of the Commitment,  the Loans and outstanding Letters of Credit unless otherwise
agreed to by the Agent) to additional banks or other financial institutions with
the prior  written  approval of the Agent and, so long as no Default or Event of
Default has occurred and is continuing, the Borrowers, which approvals shall not
be  unreasonably  withheld.  Any Bank may at any  time,  and from  time to time,
assign to any branch,  lending office, or affiliate of such Bank all or any part
of its rights and  obligations  under the Loan  Documents by notice to the Agent
and the  Borrowers.  It is  further  agreed  that each  bank or other  financial
institution which executes and delivers to the Agent and the Borrowers hereunder
an  Assignment  and  Acceptance  substantially  in the form of  Exhibit E hereto
together with an assignment fee in the amount of $3,500 payable by the assigning
Bank  to the  Agent,  shall,  on the  date  specified  in  such  Assignment  and
Acceptance,  become a party to this  Agreement and the other Loan  Documents for
all purposes of this Agreement and the other Loan Documents,  and its portion of
the  Commitment,  the Loans and Letters of Credit  shall be as set forth in such
Assignment and  Acceptance.  The Bank assignor  thereunder  shall, to the extent
that rights and obligations  hereunder have been assigned by it pursuant to such
Assignment  and  Acceptance,  relinquish  its  rights and be  released  from its
obligations  under this  Agreement.  Upon the  execution  and  delivery  of such
Assignment and  Acceptance,  (a) the Borrowers  shall issue to the bank or other
financial  institution  a Note in the amount of such  bank's or other  financial
institution's  Commitment dated the date of the assignment or such other date as
may be specified by the Agent and otherwise  completed in substantially the form
of Exhibit A and to the extent any assigning  Bank has retained a portion of its
obligations  hereunder,  an appropriate  replacement  Note to the assigning Bank
reflecting its assignment;  (b) the Agent shall distribute to the Borrowers, the
Banks and such bank or financial institution a schedule reflecting such changes;
and (c) this Agreement shall be appropriately  amended to reflect (i) the status
of the bank or financial  institution  as a party hereto and (ii) the status and
rights of the Banks hereunder.

     Each Bank shall also have the right to grant  participations to one or more
banks  or  other  financial  institutions  in  its  Commitment,  the  Loans  and
outstanding  Letters of Credit. The documents  evidencing any such participation
shall limit such participating bank or financial institutions voting rights with
respect to this  Agreement to the matters set forth in ss.14.8 which require the
vote of all Banks.

     Notwithstanding the foregoing, no assignment or participation shall operate
to increase the Total  Commitment  hereunder or otherwise  alter the substantive
terms  of this  Agreement.  Without  the  prior  consent  of the  Agent  and the
Borrowers,  no Bank which retains a Commitment hereunder shall have a Commitment
of less than  $5,000,000,  as such amount may be reduced upon  reductions in the
Total Commitment pursuant to ss.2.2 hereof.

     Anything contained in this ss.17 to the contrary notwithstanding,  any Bank
may at any time pledge all or any portion of its  interest and rights under this
Agreement  (including  all or any  portion  of its  Notes) to any of the  twelve
Federal  Reserve  Lenders  organized  under ss.4 of the Federal  Reserve Act, 12
U.S.C.  ss.341.  No such pledge or the  enforcement  thereof  shall  release the
pledgor  Lender from its  obligations  hereunder  or under any of the other Loan
Documents.

     ss.18.  PARTIES IN INTEREST.  All the terms of this Agreement and the other
Loan  Documents  shall be  binding  upon  and  inure  to the  benefit  of and be
enforceable by the  respective  successors and assigns of the parties hereto and
thereto; provided that no Borrower shall assign or transfer its rights hereunder
without the prior written consent of the Banks.

     ss.19. NOTICES, ETC.

     ss.19.1. Notices. Except as otherwise expressly provided in this Agreement,
all notices and other  communications  made or required to be given  pursuant to
this  Agreement  or the other Loan  Documents  shall be in writing  and shall be
delivered in hand, mailed by United States first-class mail, postage prepaid, or
sent by telecopier and confirmed by letter, addressed as follows:

         (a) if to the  Borrowers,  at 3155 N.W.  77th  Avenue,  Miami,  Florida
33122-1205, Attention: Edwin D. Johnson; Senior Vice President & Chief Financial
Officer,  telecopy number (305) 406-1908, with a copy to the Legal Department of
the Borrowers at the same address, telecopy number (305) 406-1907;

         (b) if to the Agent or BKB, at 100 Federal Street, Boston, 
Massachusetts  02110,  Attention:  Arthur  Oberheim,  Vice President, telecopy 
number 617-434-2160;

         or such other  address for notice as shall have last been  furnished in
writing to the Person giving the notice.

     Any such  notice or demand  shall be deemed to have been duly given or made
and to have become  effective (a) if delivered by hand to a responsible  officer
of the party to which it is directed, at the time of the receipt thereof by such
officer,  (b) if sent by  registered  or  certified  first-class  mail,  postage
prepaid,  five  Business  Days  after the  posting  thereof,  and (c) if sent by
telecopier,  at the time of the dispatch thereof with answer-back  confirmation,
if in normal  business  hours in the country of  receipt,  or  otherwise  at the
opening of business on the following Business Day.

     ss.19.2.  Deemed Notice. Except for notice of the occurrence of any Default
or Event of Default required pursuant to ss.6.14 hereof, the Agent and the Banks
shall be deemed to have received  notice of any matter  disclosed in the filings
of the Parent with the United States  Securities and Exchange  Commission at the
time such filing are delivered to the Banks.

     ss.20.  MISCELLANEOUS.   The  rights  and  remedies  herein  expressed  are
cumulative  and not exclusive of any other rights which the Banks or Agent would
otherwise  have. The captions in this Agreement are for convenience of reference
only and shall not define or limit the provisions hereof. This Agreement and any
amendment hereof may be executed in several  counterparts and by each party on a
separate  counterpart,  each of which when so executed and delivered shall be an
original, but all of which together shall constitute one instrument.  In proving
this Agreement it shall not be necessary to produce or account for more than one
such counterpart signed by the party against whom enforcement is sought.

     ss.21.  ENTIRE  AGREEMENT,  ETC. The Loan Documents and any other documents
executed in connection herewith or therewith express the entire understanding of
the parties with respect to the transactions  contemplated hereby.  Neither this
Agreement nor any term hereof may be changed, waived,  discharged or terminated,
except as  provided  in  ss.14.8.  No  waiver  shall  extend  to or  affect  any
obligation  not  expressly  waived or impair any right  consequent  thereon.  No
course of dealing or omission on the part of the Agent or any Bank in exercising
any right shall operate as a waiver thereof or otherwise be prejudicial thereto.
No notice to or demand upon the  Borrowers  shall entitle the Borrowers to other
or further notice or demand in similar or other circumstances.

     ss.22.  WAIVER OF JURY TRIAL. EACH OF THE BORROWERS HEREBY WAIVES ITS RIGHT
TO A JURY TRIAL WITH  RESPECT TO ANY ACTION OR CLAIM  ARISING OUT OF ANY DISPUTE
IN CONNECTION WITH THIS AGREEMENT, THE NOTES OR ANY OF THE OTHER LOAN DOCUMENTS,
ANY RIGHTS OR  OBLIGATIONS  HEREUNDER OR THEREUNDER OR THE  PERFORMANCE  OF SUCH
RIGHTS AND OBLIGATIONS. EXCEPT AS PROHIBITED BY LAW, EACH BORROWER HEREBY WAIVES
ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER IN ANY  LITIGATION  REFERRED TO IN THE
PRECEDING SENTENCE ANY SPECIAL, EXEMPLARY,  PUNITIVE OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES  OTHER THAN, OR IN ADDITION TO,  ACTUAL  DAMAGES.  THE BORROWERS (a)
CERTIFY THAT NO  REPRESENTATIVE,  AGENT OR ATTORNEY OF ANY BANK OR THE AGENT HAS
REPRESENTED,  EXPRESSLY OR OTHERWISE,  THAT SUCH BANK OR THE AGENT WOULD NOT, IN
THE  EVENT  OF  LITIGATION,  SEEK  TO  ENFORCE  THE  FOREGOING  WAIVERS  AND (b)
ACKNOWLEDGE  THAT THE AGENT AND THE BANKS  HAVE BEEN  INDUCED TO ENTER INTO THIS
AGREEMENT AND THE OTHER LOAN  DOCUMENTS TO WHICH IT IS A PARTY BECAUSE OF, AMONG
OTHER THINGS, THE BORROWERS' WAIVERS AND CERTIFICATIONS CONTAINED HEREIN.

     ss.23.  GOVERNING  LAW. THIS AGREEMENT AND EACH OF THE OTHER LOAN DOCUMENTS
(OTHER  THAN THE  INTERNATIONAL  PLEDGE  DOCUMENTS  DEFINED IN THE SINTEL  STOCK
PLEDGE   AGREEMENT)  ARE  CONTRACTS  UNDER  THE  LAWS  OF  THE  COMMONWEALTH  OF
MASSACHUSETTS  AND SHALL FOR ALL PURPOSES BE CONSTRUED  IN  ACCORDANCE  WITH AND
GOVERNED BY THE LAWS OF SAID  COMMONWEALTH  (EXCLUDING  THE LAWS  APPLICABLE  TO
CONFLICTS OR CHOICE OF LAW). THE BORROWERS CONSENT TO THE JURISDICTION OF ANY OF
THE FEDERAL OR STATE COURTS  LOCATED IN THE  COMMONWEALTH  OF  MASSACHUSETTS  IN
CONNECTION  WITH ANY SUIT TO ENFORCE  THE RIGHTS OF ANY BANK OR THE AGENT  UNDER
THIS AGREEMENT OR ANY OF THE OTHER LOAN DOCUMENTS.

     ss.24. SEVERABILITY.  The provisions of this Agreement are severable and if
any one clause or provision  hereof shall be held  invalid or  unenforceable  in
whole or in part in any jurisdiction,  then such invalidity or  unenforceability
shall  affect  only  such  clause  or  provision,   or  part  thereof,  in  such
jurisdiction, and shall not in any manner affect such clause or provision in any
other  jurisdiction,  or any other clause or provision of this  Agreement in any
jurisdiction.





            [The remainder of this page is intentionally left blank.]








         IN WITNESS  WHEREOF,  the undersigned have duly executed this Agreement
under seal as of the date first set forth above.


                               THE BORROWERS:

                               MASTEC, INC.



                               By:______________________________________________
                               Title:___________________________________________

                               B & D CONTRACTORS OF SHELBY, INC.
                               BURNUP & SIMS OF TEXAS, INC.
                               BURNUP & SIMS OF THE CAROLINAS, INC.
                               HARRISON-WRIGHT CO., INC.
                               UTILITY PRECAST, INC.
                               BURNUP & SIMS TELCOM OF FLORIDA, INC.
                               BURNUP & SIMS TSI, INC.
                               CHURCH & TOWER ENVIRONMENTAL, INC.
                               CHURCH & TOWER FIBER TEL, INC.
                               CHURCH & TOWER, INC.
                               CHURCH & TOWER OF FLORIDA, INC.
                               CHURCH & TOWER OF TN, INC.
                               DESIGNED TRAFFIC INSTALLATION CO.
                               GDSI, INC.
                               KENNEDY CABLE CONSTRUCTION, INC.
                               LATLINK CORPORATION
                               LATLINK ARGENTINA, INC.
                               MASTEC COMTEC OF CALIFORNIA, INC.
                               MASTEC COMTEC OF THE CAROLINAS, INC.
                               MASTEC TECHNOLOGIES, INC.
                               MASTEC TELEPORT, INC.
                               R.D. MOODY & ASSOCIATES, INC.
                               R.D. MOODY AND ASSOCIATES, INC. OF   VIRGINIA
                               SHANCO CORPORATION
                               UTILITY LINE MAINTENANCE, INC.



                               By:______________________________________________
                               Title:___________________________________________



                               THE BANKS:

                               CREDITANSTALT-BANKVEREIN



                               By:______________________________________________
                               Title:___________________________________________



                               By:______________________________________________
                               Title:___________________________________________

                               FIRST UNION NATIONAL BANK OF FLORIDA



                               By:______________________________________________
                               Title:___________________________________________

                               THE SUMITOMO BANK, LIMITED



                               By:______________________________________________
                               Title:___________________________________________




                               By:______________________________________________
                               Title:___________________________________________

                               SCOTIABANC INC.



                               By:______________________________________________
                               Title:___________________________________________







                               THE FUJI BANK AND TRUST COMPANY



                               By:______________________________________________
                               Title:___________________________________________

                               COMERICA BANK



                               By:______________________________________________
                               Title:___________________________________________

                               LTCB TRUST COMPANY



                               By:______________________________________________
                               Title:___________________________________________

                               BANKBOSTON, N.A.,
                                 individually and as Agent



                               By:______________________________________________
                               Title:___________________________________________




                                    AGREEMENT

This AGREEMENT is entered by and between:

         MASTEC,  INC., a company  organized and existing  under the laws of the
         State of Florida,  United  States of America,  with head office at 3155
         N.W. 77th Avenue, in the city of Miami, State of Florida, United States
         of  America,  and/or  any  of  its  affiliated  companies  (hereinafter
         referred to as "MasTec"), and

         INEPAR, S.A. - INDUSTRIA E CONSTRUCOES, a company organized and 
         existing under the laws of Brazil, with head office at Av. Jusceline K.
         De Oliveira, no. 11.400, Cidade Industrial, in the city of Curitiba, 
         State of Parana, Brazil (hereinafter referred to as "Inepar"),

         (hereinafter jointly referred to as "Parties"@).

WHEREAS

This Agreement is based on the following:

A.       MasTec and Inepar  executed an Agreement of Intent,  dated May 17, 1997
         (hereinafter  referred to as "Agreement"),  providing for the terms and
         conditions  to  organize a Brazilian  corporation,  with the purpose of
         operating  in the  Brazilian  market of  rendering  of services for the
         introduction of  telecommunication  systems,  and which stocks would be
         100% (one hundred per cent) held by the Parties.

B.       Inepar, organized on June 26, 1997, a corporation under its control, 
         named MasTec Inepar, S.A.- Sistemas de Telecomunicacoes, with head
         office at Avenida Jusceline K. De Oliveira, no. 11.400-CIC, in the city
         of Curitiba, State of Parana, Brazil, with acts of incorporation filed 
         with the Most Worthy Commercial Registry of the State of Parana, 
         Brazil, under no. 41300045739, in session held on July 01, 1997 
         (hereinafter referred to as ("Corporation"), in order that, in the 
         future and in accordance with the Agreement, the Corporation carried 
         out a capital increase to allow the admittance of the new stockholder 
         MasTec (hereinafter referred to as "Capital Increase"), and as of the
         Capital Increase, referred to as "Newco"




























































































































































































Taking into  consideration  the terms of the  Agreement of Intent and its mutual
commitments stipulated herein, the Parties agree to execute this Agreement to be
governed by the following clauses and conditions:

I - THE CORPORATION

1.       The corporation  capital is currently composed of 100,000 (one hundred)



         common  nominative  stocks,  in that Inepar  holds  99.50% of its total
         capital: 
         1.1 Newco shall be a corporation governed by the provisions of
         its articles of organization (hereinafter referred to as "Articles of 
         Organization") and by the  applicable laws, in that all of its existing
         stocks and each and  every stock to be  issued  in the  future shall be
         subject to the terms and conditions of this Agreement.

2.       Inepar transferred the Corporation all backlog - with the respective 
         accounting on June 30, 1997 - of its agreement:

(i)      -    PI 5148 with Telrj, dated June 30, 1996;
(ii)     -    PI 5152 with Equitel, dated February 17, 1997;
(iii)    -    PI 5153 with Telepar, dated March 11, 1997;
(iv)     -    PI 5154 with Telepar, dated January 31, 1997;
(v)      -    PI 5155 with Telesp, dated December 31, 1996;
(vi)     -    PI 5156 with Telesp, dated December 31, 1996;
(vii)    -    PI 5157 with Motorola, dated March 11, 1997;
(viii)   -    PI 5158 with Telesp, dated May 30, 1997;
(ix)     -    PI 5159 with Telesp, dated June 23, 1997;
(x)      -    PI 5160 with Telepar, dated April 01, 1997, and
(xi)     -    PI 5161 with Alcoa,  dated June 20, 1997,  (hereinafter  jointly
              referred to as "Transferred Agreements").

Inepar shall also transfer the Corporation the Agreements  which on the occasion
of this Agreement are under negotiation with the customers:

(i)       Motorola - Telepar - South  Region, valued estimated at 
          US $32,000,000.00 (thirty two million US dollars); 
(ii)      Consorcio  Globaltelecom - Band E. Value estimated at 
          US $100,000,000.00 (one hundred million US dollars)and
(iii)     Telepar  -  infrastructure  for  the  conventional  telephony, value
          estimated at US $9,000,000.00  (nine million US dollars), (hereinafter
          jointly referred to as "Agreements to be Transferred").

The  Transferred  Agreements  together  with the  Agreements  to be  Transferred
represent a total backlog of approximately the equivalent in Brazilian  currency
to US  $370,000,000.00  (three hundred seventy million US dollars),  in that the
Agreements to be Transferred  shall be  automatically  incorporated  to Newco by
Inepar on the occasion of their definite execution.






         2.1      Inepar  shall  gear its best  efforts  with its  customers  to
                  approve the transfer of the Transferred  Agreements and of the
                  Agreements to be Transferred to Newco. In the event the status
                  of minority of Inepar in Newco causes any  impediment  for the
                  presentation  of the  Agreements  at Newco,  the Parties shall
                  consider,  among others,  the  alternative to subcontract  the
                  purpose of the Transferred Agreements and of the Agreements to
                  be  Transferred  to Newco and/or  present  Newco the Backlog -
                  with  the  respective  accounting  - of  other  agreements  or
                  services for Inepar and/or of any of its subsidiary  companies
                  in order to perform the amount of the invoicing and respective
                  margins of  profitability  which  arise out of the  agreements
                  herein referred to above.

II.      CAPITAL INCREASE

3.       The Parties agree that at July 31, 1997 (hereinafter referred to as 
         "capital increase date") Inepar, company's majority stockholder, will
         carry out a Special Stockholders' Meeting, recording its respective
         Minutes with the purpose of: (i) increasing the corporate's capital so 
         as to allow the admittance of the new stockholder MasTec, 
         (ii) transferring the head office of Newco from Curitiba (State of 
         Parana) to Sao Paulo (State of Sao Paulo) and (iii) issuing new common
         stocks of Newco (the "Stocks"), which shall be subscribed and paid in 
         by MasTec representing fifty-one per cent (51%) of Newco's total 
         capital (hereinafter referred to as "Subscription").  The Subscription 
         shall be preceded by the guarantee statements issued by Inepar pursuant
         to item iv hereof.

         3.1      MasTec  shall  transfer,  in  cash  the  amount  in  Brazilian
                  currency equivalent to us$ 29,400,000.00  (twenty-nine million
                  four  hundred  thousand  US  dollars)  in  order to pay up the
                  Stocks.  Such value shall be paid in eleven (11)  installments
                  in that the first  installment  shall be paid,  at the Capital
                  increase Date, in the value, in Brazilian currency, equivalent
                  to US$ 5,000,000.00 (five million US dollars), followed by ten
                  (10) equal  monthly  installments  in the value,  in Brazilian
                  currency,  equivalent  to US$  2,440,000.00  (two million four
                  hundred forty thousand US dollars).

4.       MasTec  will pay  Inepar,  at the  Capital  Increase  Date,  a goodwill
         equivalent to two hundred  fifty  thousand  (250,000)  common stocks of
         MasTec  and an option to acquire  fifty  thousand  (50,000)  additional
         common  stocks of MasTec at the NYSE  closing  market  price on May 16,
         1997, for a term of up to ten (10) years.

5.       Newco's stock  composition,  once the Subscription is carried out, will
         be  fifty-one  per cent (51%) of the  stocks to MasTec  and  forty-nine
         percent  (49%)  of  the  stocks  to  Inepar,  in  order  to  allow  the
         consolidation   and  merger  of  Newco  results,   in  Brazil,  in  the
         accounting-financial  structure  of  MasTec  in the  United  States  of
         America.

III - OPERATION CONDITIONS

6.       On the Capital  Increase Date,  Inepar will provide and transfer to the
         Company all documents  needed for the operation of the  Corporation  in
         the   field   of   rendering   of   services   of    introduction    of
         telecommunications systems.

7.       After the Capital  Increase  Date,  possible  acquisitions  of regional
         companies will be analyzed aiming for the best Brazilian  market share;
         in that the first company to be analyzed for such purposes will be CIDE
         ENGEHARIA  LTDA.,  with head office in the city of  Curitiba,  State of
         Parana, Brazil.






IV - GUARANTEES AND REPRESENTATIONS

8. Inepar states the following:

         (A)   the legal  existence and regular operation and functioning of the
               Controlled   Corporation;   
         (B)   the  validity  and  effectiveness of transferred  Agreements and
               Agreements  to be  Transferred;  
         (C)   the nonexistence of any labor, fiscal or social security demand
               against the Controlled Corporation, and the nonexistence of any 
               liens regarding the properties and assets of the Controlled 
               Corporation;
         (D)   the net equity position of Controlled  Company is reflected in
               the  balance  sheet of the  Capital  increase  Date,  attached
               hereto as Annex 8 (D); and
         (E)   the nonexistence of any liabilities or contingencies not 
               disclosed in said Annex 8 (D).

V - NEWCO'S MANAGEMENT

9.       After the Capital  Increase  date,  the Parties  agree that Newco shall
         have a Management  Committee  formed by up to five (5)  members,  among
         those it will  necessarily  be the  President  Director  of Newco.  The
         Management  Committee  shall be formed as  follows:  (i) one (1) member
         named Chairman, appointed by mutual agreement between the Parties; (ii)
         two (2) members simply named Committee Members appointed by MasTec; and
         (iii) other two (2) members simply named Committee Members appointed by
         Inepar.  The powers of said  Committee  Members  will be defined in the
         Articles of Organization.

         9.1      In case of  temporary  impediment,  the  Chairman  himself may
                  appoint  another  Member to substitute for him, and in case of
                  definitive   vacancy  the  Parities  will  choose,  by  common
                  agreement,  another  Chairman  who will be in office until the
                  end of the tenure.

         9.2      In case of vacancy or  definitive  impediment of nay Committee
                  Member,  the  Party  which has  appointed  said  Member  shall
                  appoint a substitute who will complete the  performance of the
                  tenure of the substituted Member.

10.      Newco shall have a Board of Directors  formed by up to five (5) members
         as follows;  (i) one (1) member named President  Director  appointed by
         mutual agreement of the Parties, who will also be necessarily appointed
         for one of the office of the Company's Management  Committee;  (ii) tow
         (2) members named individually  Executive  Vice-President  Director and
         Commercial  Director  appointed  by President  Director;  (iii) one (1)
         member named Financial  Managing Director appointed by MasTec; and (iv)
         one (1) member named Technical Director appointed by Inepar. The powers
         of said Directors will be defined in the Articles of Organization.






         10.1     In case of vacancy or  definitive  impediment of any Director,
                  the party or the President  Director who appointed him, as the
                  case  may be,  shall  appoint  a  substitute  who will end the
                  tenure of the substituted Director.

         10.2     Newco's President Director shall have all the necessary powers
                  to carry out the Company's management.

         10.3     In   Newco's    President    Director    absence,    Executive
                  Vice-President Director,  jointly with any other Director, may
                  perform the President Director's duties.

         10.4     The  Parties  agree that,  as  stockholders  of Newco,  MasTec
                  and/or Inepar, as the case may be, they may grant and assign a
                  sole  stock held by them to  natural  individuals  who come to
                  form the  Management  Committee  of Newco,  in order to comply
                  with the legal demand related to the member of such board. The
                  stocks then  disposed of shall be  encumbered  in favor of the
                  respective  assignor  stockholders.  It is also  agreed  that,
                  should any of said natural  individuals fail to participate in
                  Newco's Management Committee,  the stocks shall be immediately
                  assigned to the respective assignor  stockholder,  who will be
                  fully in charge of such obligation fulfillment.

VI       NOTICES

11.      Any notices  shall be given,  as provided for herein,  in writing,  and
         will be effective upon its receipt, if sent by registered air mail, and
         in case the notice is sent by fax it will be effective  when  confirmed
         by the original copy sent via  registered air mail, to the Party at the
         address indicated  hereinbelow or at another address, as said Party may
         indicate, by means of written notice pursuant to the provisions of this
         Section.

To MasTec:                                  To Inepar:
Attention:                                  Attention: Di Marco Pozzo
Fax No.:                                    Fax No.: ++ 55 41 341 1414

VII - MISCELLANEOUS

12.      This Agreement  shall be effective for a period of ten (10) years as of
         the present date or, whenever  observed that time limitation  meanwhile
         no changes in the original share of Newco's  stockholders occur, and in
         such  case,  if none of them  delivers  a notice  informing  about  its
         determination  not to consent  with its  renewal  before the end of the
         ten-year term,  this Agreement  shall be renewed without any additional
         measure for an indefinite term.

         12.1     In case of decrease in Newco's original  interests,  the terms
                  of this Agreement shall be reviewed.






13.      The  Parties  may  validate  the  obligations   hereunder  by  specific
         performance or any other legal action,  including claim for damages, to
         which they have the right, under the applicable laws.

14.      The terms of this Agreement shall bind the parties to their  respective
         successors or  authorized  assignees.  No right or obligation  shall be
         granted or assigned  hereunder,  by any of the Parties,  without  prior
         written consent of the other Party.

15.      This  Agreement  represents  the full  agreement  between  the  Parties
         regarding  the matters  discussed  and shall prevail on all other prior
         related  settlements,   compromises,  and  documents.  Any  amendments,
         cancellation or renounce shall require a written document duly executed
         by the Parties.

16.      This  Agreement  will be ruled by Brazilian  laws.  Any disputes  which
         result from this Agreement shall be (first settled by arbitration), and
         then,  if necessary,  by the Courts of the city of Sao Paulo,  State of
         Sao Paulo, excluding any other, no matter how privileged it may be.

IN WITNESS WHEREOF, the Parties execute this Agreement in three (3) counterparts
before the two (2) undersigned witnesses.

                                            Sao Paulo, July 21, 1997

                                  MASTEC, INC.

- --------------------------                  ----------------------------
By:                                         By:
Title:                                      Title:

                       INEPAR S.A. INDUSTRIA E CONSTRUCOES


- --------------------------                  ----------------------------
By:      Atilano De Oms Sobrinho            By:      Mario Celso Petraglia
Title:   President                          Title:   Vice-President

Witnesses:

- --------------------------                  ----------------------------
By:                                         By:
RG:                                         RG







"SIDE LETTER"


Without any detriment of the provisions of the AGREEMENT executed between:

         MASTEC,  INC., a company  organized and existing  under the laws of the
         State of Florida,  United  States of America,  with head office at 3155
         N.W. 77th Avenue, in the City of Miami, State of Florida, United States
         of  America,  and/or  any  of  its  affiliated  companies  (hereinafter
         referred to as "MasTec"), and

         INEPAR, S.A. - INDUSTRIA E CONSTRUCOES, a company organized and 
         existing under the laws of Brazil, with head office at Av. Juscelino K.
         De Oliveria, no. 11.400, Cidade Industrial, in the city of Curitiba,
         State of Parana, Brazil (hereinafter referred to as "Inepar"),

         the  parties,   shareholders   of  MASTEC  INEPAR  S/A  -  SISTEMAS  DE
         TELECOMUNICACOES,  have established herewith that the decisions related
         to the matters  specified  hereafter shall be invariably made by mutual
         agreement:

a)   Amendments to the Articles of Organization of MASTEC INEPAR S/A -SISTEMAS 
     DE TELECOMUNICACOES related to:

         (i)      changes to the corporate purposes which determine, directly or
                  indirectly,  amendments to the  corporate  purpose of products
                  and services of the Corporation;

         (ii)     creation, amendment or extinction of types of shares or rights
                  related to the stocks;

         (iii)    creation of  beneficiary  parties or  debentures  convertibles
                  into stocks  and/or that have  interest in the profits,  or of
                  other  securities  which represent the interest in the capital
                  and/or in the results of the  Corporation  or even  securities
                  which  guarantee any rights of vote in the  administration  of
                  the Corporation;

         (iv)     definition and/or amendment to the fiscal year of the 
                  Corporation;

         (v)      amendments to the policy of dividends distribution of the
                  Corporation;

         (vi)     definition  and/or  amendment to the hypothesis of call of the
                  Statutory  Audit  Committee  as well as of the  number  of its
                  members;

b) - The following operational decisions:

         (i)      dissolution, liquidation, bankruptcy, reorganization or
                  suspension of the liquidation;

         (ii)     reorganizations   of   corporations,   such  as   mergers   or
                  consolidations and others which cause the creation,  amendment
                  and replacement of stocks or other  securities which represent
                  the  interest  in the  capital  and/or in the  results  of the
                  Corporation;





         (iii)    sale, acquisition or taxation of interest in any company which
                  competes with the  Corporation  or which capital also pertains
                  to a  competitor  of the  Corporation  or that holds  majority
                  interest in any company;

         (iv)     increase and/or reduction in the corporate capital of the 
                  Corporation;

         (v)      manufacture of new products  and/or  beginning of new projects
                  unrelated  to the  rendering  of services of  introduction  of
                  systems of telecommunications.






Exhibit 10.5

                                    AGREEMENT


This AGREEMENT is entered by and between:

                  MASTEC,  INC., a company organized and existing under the laws
                  of the State of Florida,  United States of America,  with head
                  office at 3155 N.W. 77th Avenue,  in the city of Miami,  State
                  of  Florida,  United  States  of  America,  and/or  any of its
                  affiliated  companies  (hereinafter  referred to as "MasTec"),
                  and

     INEPAR S.A. - INDUSTRIA E CONSTRUCOES, a company organized and existing
     under the laws of Brazil, with head office at Av. Juscelino K. de Oliveira,
     no. 11.400, Cidade Industrial, in the city of Curitiba, state of Parana, 
     Brazil (hereinafter referred to as "Inepar" ),


     (hereinafter jointly referred to as "Parties").


WHEREAS

This Agreement is based on the following:

A.       MasTec and Inepar  executed an Agreement of Intent,  dated May 17, 1997
         (hereinafter  referred to as "Agreement"),  providing for the terms and
         conditions  to  organize a Brazilian  corporation,  with the purpose of
         operating  in the  Brazilian  market of  rendering  of services for the
         introduction of  telecommunication  systems,  and which stocks would be
         100% (one hundred per cent) held by the Parties.

B.       Inepar  organized on June 26, 1997,  a  corporation  under its control,
         named  MasTec  Inepar  S.A. - Sistemas de  Telecomunicacoes,  with head
         office at Avenida Juscelino K. de Oliveira, no. 11.400-CIC, in the city
         of Curitiba,  State of Parana, Brazil, with acts of incorporation filed
         with the Most Worthy  Commercial  Registry of the State of Parana under
         no. 41300045739, in session held on July 01, 1997 (hereinafter referred
         to as  "Corporation"),  in order that,  in the future and in accordance
         with the Agreement,  the Corporation  carried out a capital increase to
         allow  the  admittance  of  the  new  stockholder  MasTec  (hereinafter
         referred to as  "Capital  Increase"),  and as of the Capital  Increase,
         referred to as "Newco".

  Taking  into  consideration the term of the Agreement of Intent and its mutual
          commitments  stipulated  herein,  the  Parties  agree to execute  this
          Agreement to be governed by the following clauses and conditions:

I - THE CORPORATION

1.   The  corporation  capital is  currently  composed of 100,000  (one  hundred
     thousand)  common  nominative  stocks,  in that Inepar  holds 99.50% of its
     total capital:

         1.1      Newco shall be a corporation governed by the provisions of its
                  articles of organization (hereinafter referred to as "Articles
                  of  Organization")  and by the applicable laws, in that all of
                  its  existing  stocks and each and every stock to be issued in
                  the future  shall be subject  to the terms and  conditions  of
                  this Agreement.

2.    Inepar  transferred the  Corporation  all backlog - with the respective  
      accounting on June 30, 1997 - of the following agreements:

(i)       PI 5148 with Telerj, dated June 30,1996;
(ii)      PI 5152 with Equitel, dated February 17, 1997;
(iii)     PI 5153 with Telepar, dated March 1l, 1997;
(iv)      PI 5154 with Telepar, dated January 31, l997;
(v)       PI 5155 with Telesp, dated December 31, 1996;
(vi)      PI 5156 with Telesp, dated December 31, 1996;
(vii)     PI 5157 with Motorola, dated March 11, l997;
(viii)    PI 5158 with Telesp, dated May 30, 1997;
(ix)      PI 5159 with Telesp, dated June 23, 1997;
(x)       FI 5160 with Telepar, dated April 01, 1997; and
(xi)      PT 5161 with Alcoa, dated June 20, 1997, (hereinafter jointly referred
            to as "Transferred Agreements").

Inepar shall also transfer to the Corporation the Agreements which on the 
occasion of this Agreement are under negotiation with the customers:

(i)       Motorola - Telepar - South Region, value estimated at 
          US$ 32,000,000.00 (thirty two million US dollars);

(ii)      Consorcio  Globaltelecom - Band B,  value  estimated  at 
          US$ 100,000,000.00  (one  hundred  million  US dollars) and

(iii)     Telepar  -  infrastructure  for  the conventional  telephony,  value
          estimated at US$ 9,000,000.00 (nine million US dollars), (hereinafter
          jointly referred to as "Agreements to be Transferred").

The Transferred Agreements together with the Agreements to be Transferred
represent a total backlog of approximately the equivalent in Brazilian currency 
to US$ 370,000,000.00 (three hundred seventy million US dollars), in that the  
Agreements to be Transferred shall be automatically incorporated to Newco by 
Inepar on the occasion of their definite execution.

         2.1.     Inepar  shall  gear  its  best  efforts  with  its  customers 
                  to  approve  the  transfer of the Transferred  Agreements and 
                  of the  Agreements  to be  Transferred  to  Newco.  In the 
                  event the status  of  minority  of  Inepar in Newco  causes  
                  any  impediment  for the  presentation  of the  Agreements at 
                  Newco,  the Parties shall  consider,  among others,  the 
                  alternative to subcontract the purpose of the  Transferred  
                  Agreements  and of the  Agreements  to be  Transferred  to 
                  Newco and/or  present  Newco the backlog - with the  
                  respective  accounting  - of other  agreements  or services of
                  Inepar  and/or of any of its  subsidiary  companies in order
                  to perform the amount of the invoicing and respective  margins
                  of profitability  which arise out of the agreements  herein
                  referred to above.

II - CAPITAL INCREASE

3.    The Parties agree that at July 31, 1997 (hereinafter referred to as
      "capital increase date") Inepar, company's majority stockholder, will 
      carry out a Special Stockholders' Meeting, recording its respective 
      Minutes with the purpose of: (i) increasing the corporate's capital so as 
      to allow the admittance of the new stockholder MasTec, (ii) transferring 
      the head office of Newco from Curitiba (State of Parana) to Sao Paulo 
      (State of Sao Paulo) and (iii) issuing new common stocks of Newco (the 
      "Stocks"), which shall be subscribed and paid in by MasTec representing 
      fifty-one per cent (51%) of Newco's total capital (hereinafter referred to
      as "Subscription").  The Subscription shall be preceded by the guarantee 
      statements issued by Inepar pursuant to item iv hereof.

         3.1.     MasTec  shall  transfer,   in  cash,  the  amount  in
                  Brazilian  currency  equivalent to US$  29,400,000.00 (twenty-
                  nine million four hundred thousand US dollars) in order to pay
                  up the stocks.  Such value shall be paid in eleven (11) 
                  installments in that the first installment shall be paid,  at
                  the Capital Increase Date, in the value, in Brazilian 
                  currency, equivalent to US$ 5,000,000.00 (five million US
                  dollars), followed by ten (10) equal monthly installments in
                  the value, in Brazilian currency, equivalent to 
                  US$ 2,440,000.00 (two million four hundred forty thousand 
                  US$ dollars).

4.    MasTec will  issue to Inepar at the Capital Increase Date, in recognition 
      of goodwill, two hundred fifty thousand (250,000) common  stocks of MasTec
      and an  option to acquire fifty thousand (50,000) additional common stocks
      of MasTec at the NYSE closing market price on May 16 1997 for a term of up
      to ten (10) years.

5.    Newco's stock composition, as of July 31, 1997, will be fifty-one percent 
      (51%) of the stocks to MasTec and forty-nine percent (49%) of the stocks 
      to Inepar, in order to allow the consolidation and merger of Newco
      results, in Brazil, in the accounting-financial structure of MasTec in the
      United States of America.

III - OPERAT1ONAL CONDITIONS

6.    On the Capital Increase Date, Inepar will provide and transfer to the  
      Company all documents needed for the operation of the Corporation in the 
      field of rendering of services of introduction of telecommunication 
      systems.

7.    After the Capital Increase Date, possible acquisitions of regional
      companies will be analyzed aiming for the best Brazilian market share; in 
      that the first  company to be analyzed for such purpose will be CIDE 
      ENGENHARIA LTDA., with head office in the city of Curitiba, State of 
      Parana, Brazil.

IV - GUARANTEES AND REPRESENTATIONS

         Inepar states the following:

         (A)      the legal existence and regular operation and functioning of 
                  the controlled Corporation;

         (B)      the validity and effectiveness of Transferred Agreements to
                  be Transferred;

         (C)      the  nonexistence  of any  labor,  fiscal or  social  security
                  demand   against   the   Controlled   Corporation,   and   the
                  nonexistence  of any liens regarding the properties and assets
                  of the Controlled Corporation;

         (D)      the net equity position of controlled  Company is reflected in
                  the  balance  sheet of the  Capital  Increase  Date,  attached
                  hereto as Annex 8. (D); and

         (E)      the nonexistence of any liabilities or contingencies not 
                  disclosed in said Annex 8. (D).

V - NEWCO'S MANAGEMENT

9.     After the Capital Increase Date, the Parties agree that Newco shall have 
       a Board of Directors formed by up to five (5) members.  The Board of 
       Directors shall consist of two (2) Directors appointed by MasTec, two (2)
       Directors to be appointed by Inepar and the President of Newco.  A 
       chairman of the board will be appointed by mutual agreement between the 
       parties. The powers of said Board of Directors will be defined in the 
       Articles of Organization.

       9.1     In case of temporary impediment, the Chairman himself may appoint
               another Member to substitute for him, and in case of definitive
               vacancy the Parties will choose, by common agreement another
               Chairman who will be in office until the end of the tenure.

       9.2.    In case of vacancy or definitive impediment of any Board Member, 
               the Party which has appointed said Member shall appoint a 
               substitute who will complete the performance of the tenure of the
               substituted Member.

10.0     Newco will be formed having five officers as follows: (i) one President
         named by MasTec, who will serve also serve as a Board Director, (ii) 
         two (2) officers named individually Executive Vice-President to be 
         appointed by the President and the Commercial  Director to be appointed
         by Inepar, (iii) one Financial-Managing Director to be appointed by 
         MasTec, and (iv) one Technical Director to be appointed by Inepar. The 
         powers of said officers will be defined in the Articles of 
         Organization.

         10.1.    In case of vacancy or  definitive  impediment  of any officer,
                  the Party or the President  appointed him, as the case may be,
                  shall  appoint  a  substitute  who will end the  tenure of the
                  substituted officer.

         10.2.    Newco's President shall have all the necessary powers to carry
                  out the Company's management.

         10.3.    In  Newco President's absence,  Executive  VicePresident
                  Director,  jointly  with any other  Director,  may perform the
                  President Director's duties.

         10.4.    The  Parties  agree that,  as  stockholders  of Newco,  MasTec
                  and/or Inepar, as the case may be, they may grant and assign a
                  sole  stock held by them to  natural  individuals  who come to
                  form the  Management  Committee  of Newco,  in order to comply
                  with the legal  demands  related to the members of such board.
                  The stocks then  disposed of shall be  encumbered  in favor of
                  the respective assignor stockholders.  It is also agreed that,
                  should any of said natural  individuals fail to participate in
                  Newco's Management Committee,  the stocks shall be immediately
                  assigned to the respective assignor  stockholder,  who will be
                  fully in charge of such obligation fulfillment.

VI - NOTICES

11.     Any notice shall be given, as provided for herein, in writing, and will 
        be effective upon its receipt, if sent by registered air mail, and in 
        case the notice is sent by fax it will be  effective  when  confirmed by
        the original copy sent via registered air mail, to the Party at the 
        address indicated hereinbelow or at another address, as said Party may
        indicate, by means of written notice pursuant to the provisions of this
        Section.
- ----------------------------------------------------------- --------------------------------------------------------- To MasTec: To Inepar: - ----------------------------------------------------------- --------------------------------------------------------- - ----------------------------------------------------------- --------------------------------------------------------- Attention: Jose Sariego Attention: Di Marco Pozzo - ----------------------------------------------------------- --------------------------------------------------------- - ----------------------------------------------------------- --------------------------------------------------------- Fax no.:305 406 1908 Fax no.: 55 41 341 1414 - ----------------------------------------------------------- ---------------------------------------------------------
VII - MISCELLANEOUS 12. This Agreement shall be effective for a period of ten (10) years as of the present date or, whenever observed that time limitation meanwhile no changes in the original share of Newco's stockholders occur, and in such case, if none of them delivers a notice informing about its determination not to consent with its renewal before the end of the ten-year term, this Agreement shall be renewed without any additional measure for an indefinite term. 12.1. In case of decrease in either party's interests in Newco, the terms of this Agreement shall be reviewed. 13. The Parties may validate the obligations hereunder by specific performance or any other legal action, including claim for damages, to which they have the right, under the applicable laws. 14. The terms of this Agreement shall bind the Parties to their respective successors or authorized assignees. No right or obligation shall be granted or assigned hereunder, by any of the Parties, without prior written consent of the other Party. 15. This Agreement represents the full agreement between the Parties regarding the matters discussed and shall prevail on all other prior related settlements, compromises, and documents. Any amendments, cancellation or renounce shall require a written document duly executed by the Parties. 16. This Agreement will be ruled by Brazilian laws. Any disputes which result from this Agreement shall be firstly settled by arbitration, then, if necessary, by the Courts of the city of Sao Paulo, State of Sao Paulo, excluding any other, no matter how privileged it may be. IN WITNESS WHEREOF, the Parties execute this Agreement in three (3) counterparts before the two (2) undersigned witnesses, Sao Paulo, July 21, 1997 MASTEC, INC. /s/ Edwin D. Johnson /s/ Ismael Perera By: Edwin D. Johnson By: Ismael Perera Title: Senior Vice President and Title: Senior Vice President Chief Financial Officer INEPAR S . A. INDUSTRIA E CONSTRUCOES /s/ Atilano de Oms Sobrinho /s/ Mario Celso Petraglia By: Atilano de Oms Sobrinho By: Mario Celso Petraglia Title: President title: Vice-President Witnesses: /s/ Kalil Cury Filho Name: Name: RG: RG:






Exhibit 21.1


Set forth below is a list of the significant subsidiaries of the Company.

Burnup & Sims of Texas, Inc.
Burnup & Sims Telcom of Florida, Inc.
Church & Tower, Inc.
Church & Tower Fiber Tel, Inc.
Church & Tower of TN, Inc.
Harrison-Wright Co., Inc.
Kennedy Cable Construction, Inc.
LatLink Corporation
MasTec ComTec of California, Inc.
MasTec ComTec of the Carolinas, Inc.
MasTec International, Inc.
MasTec Technologies, Inc.
R.D. Moody & Associates, Inc.
Shanco Corporation
Sistemas e Instalaciones de Telecomunicacion, S.A.
Aidco, Inc.
B&D Contractors of Shelby, Inc.
C & S Directional Boring, Inc.
E.L. Dalton & Company, Inc.
M. E.  Hunter & Associates, Inc.
Phasecom Systems, Inc.
Weeks Construction Company
Wilde construction, Inc.
MasTecInepar S/A Sistemas de Telecomunicacoes





Exhibit 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-8 (No.  333-55327) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31, 1997 and for the year then ended,  which report is  incorporated
by reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN  LLP
Madrid, Spain
March 27, 1998



Exhibit 23.2

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-3 (No.  333-46067) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicaci6n,  S.A. (Sintel) and subsidiaries as
of December 31,1997 and for the year then ended, which report is incorporated by
reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998




Exhibit 23.3

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-4 (No.  333-30645) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31, 1997 and for the year then ended,  which report is  incorporated
by reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998




Exhibit 23.4

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-4 (No.  333-46361) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31,1997 and for the year then ended, which report is incorporated by
reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998





Exhibit 23.5

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries  on Form S-4 (No.  333-9607) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31,1997 and for the year then ended, which report is incorporated by
reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998




Exhibit 23.6

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-8 (No.  333-22465) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31, 1997 and for the year then ended,  which report is  incorporated
by reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998





Exhibit 23.7

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-8 (No.  333-30647) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31,1997 and for the year then ended, which report is incorporated by
reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998




Exhibit 23.8

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries  on Form S-8 (No.  333-7003) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31, 1997 and for the year then ended,  which report is  incorporated
by reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998




Exhibit 23.9

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-3 (No.  333-11013) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31,1997 and for the year then ended, which report is incorporated by
reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998




Exhibit 23.10


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-8  (No.333-22465)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998




Exhibit 23.11


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries  on Form S-8  (No.33-55327)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998






Exhibit 23.12


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-3  (No.333-11013)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998





Exhibit 23.13


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-3  (No.333-30645)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998





Exhibit 23.14


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-8  (No.333-47003)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998






Exhibit 23.15


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-4  (No.333-46361)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998






Exhibit 23.16


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-3  (No.333-46067)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998





Exhibit 23.17


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-8  (No.333-30647)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998




Exhibit 23.18


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries  on Form S-4  (No.333-9607)  of our report dated
March 10,  1998,  on our  audits of the  consolidated  financial  statements  of
MasTec,  Inc. and  subsidiaries  as of December  31, 1997 and 1996,  and for the
years ended December 31, 1997,  1996, and 1995,  which report is incorporated by
reference in this Annual Report on Form 10-K.




COOPERS & LYBRAND L.L.P.
Miami, Florida
March 30, 1998
 


5 (Replace this text with the legend) 0000015615 MasTec, Inc. 1,000 UDS 12-MOS DEC-31-1997 JAN-1-1997 DEC-31-1997 1 6,063 0 346,596 (3,100) 8,746 349,196 129,968 (43,859) 587,598 270,448 0 0 0 2,805 177,926 587,598 703,369 703,369 522,470 522,470 115,122 0 11,920 63,550 21,015 42,535 129 0 0 42,664 1.47 1.44
 


5 (Replace this text with the legend) 0000015615 MasTec, Inc. 1,000 UDS 12-MOS DEC-31-1996 JAN-1-1996 DEC-31-1996 1 10,989 0 318,967 (3,100) 5,737 400,771 95,467 (28,290) 511,154 235,560 0 0 0 2,780 114,203 511,154 534,068 534,068 394,497 394,497 86,078 0 11,940 47,586 14,665 36,054 (111) 0 0 35,943 1.27 1.25
 


5 (Replace this text with the legend) 0000015615 MasTec, Inc. 1,000 UDS 12-MOS DEC-31-1995 JAN-1-1995 DEC-31-1995 1 3,084 0 578,025 (1,000) 3,600 120,034 68,152 (17,580) 191,272 67,007 9,625 0 0 2,780 57,834 191,272 218,859 218,859 158,598 158,598 37,096 0 5,306 5,024 (1,115) 1,500 2,531 0 0 4,031 0.11 0.11