SCHEDULE 14A INFORMATION


                    Proxy Statement Pursuant to Section 14(a)
                     of the Securities Exchange Act of 1934

Filed by the  Registrant  [ X ]
Filed by a Party other than the  Registrant  [ ]
Check the appropriate box:
[ ] Preliminary Proxy Statement
[ ] Confidential, for Use of the Commission  Only (as permitted by Rule
    14a-6(e)(2))
[X] Definitive  Proxy  Statement
[ ] Definitive  Additional  Materials
[ ] Soliciting  Material Pursuant to ss.240.14a-11(c) or ss.240.14a-12

                                  MasTec, Inc.
                 -----------------------------------------------
                (Name of Registrant as Specified in its Charter)


                                       N/A
                 -----------------------------------------------
                   (Name of Person(s) Filing Proxy Statement)

Payment of Filing Fee (Check the appropriate box):*

[X] No fee required

[ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

     1)   Title   of   each   class   of   securities   to   which   transaction
          applies:

     2)   Aggregate    number    of    securities    to    which     transaction
          applies:

     3)   Per unit  price  or other  underlying  value of  transaction  computed
          pursuant to Exchange  Act Rule 0-11 (set forth the amount on which the
          filing fee is calculated and state how it was determined):

     4)   Proposed maximum aggregate value of transaction:

     5)   Total fee paid:


[ ]  Check box if any part of the fee is offset as provided  by  Exchange  Act
     Rule  0-11(a)(2)  and identify the filing for which the  offsetting fee was
     paid  previously.  Identify the previous filing by  registration  statement
     number, or the Form or Schedule and the date of its filing.

     1)   Amount Previously Paid:

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                                  [MASTEC LOGO]

                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

                        TO BE HELD TUESDAY, MAY 25, 1999

To our shareholders:

     The 1999 Annual  Meeting of  Shareholders  of MasTec,  Inc. will be held on
Tuesday, May 25, 1999, at 9:30 A.M., local time, at the Hotel Sofitel, 5800 Blue
Lagoon Drive, Miami, Florida. At the Annual Meeting,  shareholders will be asked
to vote on the following proposals:

*    The election of two Class I directors for terms expiring in 2002;

*    Such other business as may properly be brought before the Annual Meeting.

     Each of these  proposals  is  discussed  more fully in the Proxy  Statement
accompanying  this notice.  Only shareholders of record at the close of business
on March 29,  1999 are  entitled  to vote at the Annual  Meeting.  Shareholders,
including  those whose shares are held by a brokerage  firm or in "street" name,
will be asked to verify  their  shareholder  status as of the  record  date upon
entrance   to  the   meeting.   Accordingly,   shareholders   (or  their   legal
representatives)  attending  the  Annual  Meeting  should  bring  some  form  of
identification  to the meeting  evidencing  shareholder  status as of the record
date  and,  in the  case of a  person  attending  the  meeting  on  behalf  of a
shareholder,  the  representative's  right to represent the  shareholder  at the
meeting.

     All  shareholders  are  cordially  invited to attend the Annual  Meeting in
person. However, to assure that your stock is represented at the meeting in case
you are not personally present, you are requested to mark, sign, date and return
the enclosed  proxy card as promptly as possible in the envelope  provided.  YOU
MAY NOT VOTE YOUR SHARES OF STOCK AT THE ANNUAL  MEETING  UNLESS YOU ARE PRESENT
IN PERSON OR REPRESENTED BY PROXY. Shareholders attending the Annual Meeting may
vote in person even if they have previously returned a proxy card.

                                 BY ORDER OF THE BOARD OF DIRECTORS


                                 /S/ NANCY J. DAMON
                                 ----------------------------------
                                 Nancy J. Damon
                                 Corporate Secretary


Miami, Florida
April 14, 1999



                                  [MASTEC LOGO]

                                 PROXY STATEMENT
                              ---------------------
                         ANNUAL MEETING OF SHAREHOLDERS

                                  May 25, 1999
                              --------------------

                                     GENERAL

     The Board of Directors of MasTec,  Inc. ("MasTec") is furnishing this Proxy
Statement to solicit  proxies for use at the 1999 Annual Meeting of Shareholders
of MasTec to be held at the  Hotel  Sofitel,  5800  Blue  Lagoon  Drive,  Miami,
Florida 33126, on Tuesday, May 25, 1999, at 9:30 A.M., local time.

     At the Annual  Meeting,  shareholders  will be  requested  to vote upon the
following  matters,  each of which is described in greater  detail  elsewhere in
this Proxy Statement:

*    The election of two Class I directors for terms expiring in 2002;

*    Such other business as may properly be brought before the Annual Meeting.

     THE BOARD OF  DIRECTORS  RECOMMENDS  THAT YOU VOTE FOR EACH OF THE NOMINEES
FOR ELECTION AS A CLASS I DIRECTOR SET FORTH IN THIS PROXY STATEMENT.

     This Proxy  Statement and  accompanying  proxy and other materials is first
being mailed on or about April 14, 1999 to  shareholders  of record on March 29,
1999. Only shareholders of record at the close of business on March 29, 1999 are
entitled to vote at the Annual Meeting.  If you are not present in person at the
Annual  Meeting,  your shares can be voted only when  represented by proxy.  The
shares  represented  by your  proxy  will  be  voted  in  accordance  with  your
instructions  only  if  you  properly  complete,   sign,  date  and  return  the
accompanying  proxy card to the Secretary of MasTec prior to the Annual Meeting.
If no direction is given on a proxy, the shares represented by the proxy will be
voted for the election of all nominees for director and in the discretion of the
holder of the proxy on all other  matters  that may  properly  come  before  the
Annual Meeting.  A proxy given pursuant to this  solicitation  may be revoked at
any time prior to its exercise by written  notice  delivered to the Secretary of
MasTec,  by executing and delivering to the Secretary a proxy with a later date,
or by  attending  the Annual  Meeting  and voting in person.  Attendance  at the
Annual Meeting will not, in itself, constitute revocation of a proxy.

     MasTec's  only class of voting  securities  is its Common  Stock,  $.10 par
value  ("Common  Stock").  At March 29, 1999,  there were  27,341,385  shares of
Common  Stock  outstanding,  which is the only class of capital  stock of MasTec
outstanding, and 4,687 record shareholders,  which does not include shareholders
whose shares are held by a brokerage firm or otherwise in "street name."



     Each share of Common  Stock  entitles the holder to one vote on all matters
properly brought before the Annual Meeting. The presence, in person or by proxy,
of a majority of the shares  entitled to be cast is  necessary  to  constitute a
quorum at the Annual Meeting for any matter to be voted on at the meeting.  If a
quorum is present,  directors are elected by a plurality of the shares of Common
Stock  voting in person or by proxy at the Annual  Meeting,  with the  directors
receiving the highest number of votes being elected to the Board of Directors.

     Shares that are entitled to vote but that are not voted at the direction of
the beneficial owner  ("abstentions"),  shares represented by proxies or ballots
that are marked "withhold authority" with respect to the election of any nominee
for  election  as a  director,  and votes  withheld by brokers in the absence of
instruction from beneficial holders ("broker  nonvotes") will be counted for the
purpose of determining whether there is a quorum for the transaction of business
at the  Annual  Meeting.  In  determining  whether a nominee  for  director  has
received a plurality of the shares voted, abstentions, withheld votes and broker
nonvotes will be disregarded and will have no effect on the outcome of the vote.

     Jorge Mas,  MasTec's  Chairman of the Board,  President and Chief Executive
Officer, and members of his family,  beneficially own in the aggregate more than
50% of the  outstanding  Common Stock of MasTec.  Jorge Mas has informed  MasTec
that he and his family  members  intend to vote their  shares of Common Stock in
favor of the election of the  nominees  for election as Class I directors,  thus
assuring their election.


                              ELECTION OF DIRECTORS

     The first matter that shareholders will be asked to vote upon at the Annual
Meeting is the  election  of two Class I  directors  for terms  expiring  at the
annual  meeting  of  shareholders  in the year  2002.  The  Board  of  Directors
currently is  comprised of five  directors  elected in three  classes,  with two
Class I, one Class II, and two Class III directors. Directors in each class hold
office for three-year  terms. The terms of the classes are staggered so that the
term of one  class  terminates  each  year.  The  terms of the  current  Class I
directors  expire at the Annual  Meeting;  if elected,  the nominees for Class I
directors will serve until the annual shareholders  meeting in 2002. The term of
the Class II director expires at the annual shareholders meeting in 2000 and the
terms of the Class III directors  expire at the annual  shareholders  meeting in
2001.

     The Nominating Committee of the Board of Directors has nominated the
following individuals for election as the Class I directors to be elected at the
Annual Meeting:

     Jorge Mas, a member of the Board of Directors since March 1994; and

     Joel-Tomas Citron, a member of the Board of Directors since January 1998.



     Additional  background  information  regarding  each of these  nominees  is
provided below.  MasTec has no reason to believe that any of these nominees will
refuse or be unable to serve as a director  if elected;  however,  if any of the
nominees is not able to serve, each proxy that does not direct otherwise will be
voted for a substitute nominee designated by the Board of Directors.

     The election of directors  requires the affirmative  vote of a plurality of
the shares of Common Stock  voting in person or by proxy at the Annual  Meeting.
THE BOARD OF DIRECTORS  RECOMMENDS  THAT YOU VOTE FOR EACH OF THE NOMINEES NAMED
ABOVE. UNLESS OTHERWISE INDICATED,  THE ACCOMPANYING FORM OF PROXY WILL BE VOTED
FOR THE  ELECTION  OF EACH OF THE  NOMINEES  FOR  ELECTION AS A CLASS I DIRECTOR
NAMED ABOVE.

INFORMATION AS TO NOMINEES AND OTHER DIRECTORS

NOMINEES FOR CLASS I DIRECTOR

     JORGE MAS, 36, has been President,  Chief Executive  Officer and a director
of MasTec since March 1994 and was elected Chairman of the Board of Directors of
MasTec in January 1998. Prior to March 1994, Mr. Mas served as the President and
Chief  Executive  Officer  of Church & Tower,  Inc.,  MasTec's  predecessor.  In
addition, Mr. Mas is the Chairman of the Board of Directors of Neff Corporation,
a publicly-held construction equipment sales and leasing company, is involved in
several real estate  holding  companies and has served on the Board of Directors
of First  Union  National  Bank  since  April  1998.  Mr. Mas also has been Vice
Chairman  of  the  Cuban  American   National   Foundation,   a   not-for-profit
organization, since July, 1998.

     JOEL-TOMAS  CITRON,  36,  has been a member  of the Board of  Directors  of
MasTec  since  January  1998  and was  elected  Vice  Chairman  of the  Board of
Directors in November  1998.  Mr.  Citron was the  managing  partner of Triscope
Capital LLC, a private  investment  partnership from January 1998 until December
1998;  Chairman of the Board of Directors  of the United  States  subsidiary  of
Proventus AB, a privately held  investment  company based in Stockholm,  Sweden,
and a member of the  Executive  Committee  of the group from  January 1992 until
December  1997;  a member of the Board of  Directors  of Neff  Corporation  from
October 1998 until the  present;  Chairman of the Board of Directors of American
Information Systems, Inc., a provider of intranet and internet systems solutions
from  September  1996 until January 1999; and a member of the Board of Directors
of Nesuah Zannex Limited,  a  publicly-traded  full service  Israeli  securities
firm, from May 1998 until February 1999.

CLASS II DIRECTOR

     ELIOT C.  ABBOTT,  49,  has been a member of the Board of  Directors  since
March 1994.  Since  February 1, 1997, Mr. Abbott has been a partner in the Miami
law firm of  Kluger,  Peretz,  Kaplan & Berlin,  P.A.  From  October  1, 1995 to
January  31,  1997,  Mr.  Abbott was a member of the New York law firm of Kelley
Drye & Warren.  From 1976 until September 30, 1995, Mr. Abbott was a shareholder
in the Miami law firm of Carlos & Abbott.



CLASS III DIRECTORS

     ARTHUR B. LAFFER, 58, has been a member of the Board of Directors since
March 1994.  Mr.  Laffer has been  Chairman of the Board of  Directors of Laffer
Associates,  an economic  research and financial  consulting  firm,  since 1979;
Chief  Executive  Officer,  Laffer  Advisors  Inc.,  an  investment  advisor and
broker-dealer, since 1981; and Chairman of the Board of Directors, Calport Asset
Management,  a money  management  firm,  since 1992. Mr. Laffer is a director of
U.S. Filter Corporation,  Nicholas Applegate Mutual Funds,  Oxigene,  Inc., Neff
Corporation and Coinmach Laundry Corporation.

     JOSE S.  SORZANO,  58,  has been a member of the Board of  Directors  since
October  1994.  Mr.  Sorzano has been  Chairman of the Board of Directors of The
Austin Group, Inc., an international  corporate consulting firm, since 1989. Mr.
Sorzano was also  Special  Assistant  to the  President  for  National  Security
Affairs  from  1987 to  1988;  Associate  Professor  of  Government,  Georgetown
University,  from 1969 to 1987;  President,  Cuban American National Foundation,
from 1985 to 1987;  and  Ambassador  and U.S.  Deputy to the United Nations from
1983 to 1985.

OTHER INFORMATION REGARDING THE BOARD OF DIRECTORS

BOARD AND COMMITTEE MEETINGS

     During  1998,  the Board of  Directors  met or acted by  unanimous  written
consent on 21  occasions.  Each of the  directors  attended  at least 75% of the
aggregate  number of Board  meetings  and meetings of  committees  of which such
director is a member.

     There are four standing  committees  of the Board of  Directors:  the Audit
Committee, the Executive Committee, the Compensation and Stock Option Committee,
and the Nominating Committee.

     The Audit Committee is composed of Mr. Laffer, who serves as Chairman,  and
Messrs. Abbott and Sorzano. The Audit Committee is charged,  among other things,
with:

*    Reviewing  and  recommending  to the  Board of  Directors  the  independent
     auditors to be selected to audit the financial statements of MasTec;

*    Reviewing  the scope of the proposed  annual audit for the current year and
     the audit  procedures to be applied,  including  approving the annual audit
     fee proposal from the independent auditors;

*    Reviewing the completed audit, including any comments or recommendations by
     the  independent  auditors,   and  monitoring  the  implementation  of  any
     recommendations adopted by the committee;

*    Reviewing  the  adequacy  and  effectiveness  of  MasTec's  accounting  and
     financial controls;

*    Reviewing the internal audit function of MasTec; and

*    Investigating  any matter brought to its attention  within the scope of its
     duties, including retaining independent counsel,  accountants and others to
     assist it in its investigations.



     During 1998, the Audit Committee met on eight occasions.

     The  Executive  Committee  is composed of Arthur B.  Laffer,  who serves as
Chairman, and Messrs. Joel-Tomas Citron and Jorge Mas. The principal function of
the  Executive  Committee  is to act for the Board of  Directors  when action is
required between full Board meetings.  During 1998, the Executive  Committee met
on six occasions.

     The Compensation and Stock Option Committee (the "Compensation  Committee")
is  composed  of Mr.  Laffer,  who  serves as  Chairman,  and Mr.  Sorzano.  The
Compensation Committee is charged with determining compensation packages for the
Chief Executive Officer and the other senior management of MasTec,  establishing
salaries,   bonuses  and  other   compensation   for  MasTec's  other  officers,
administering   MasTec's  1997  Annual  Compensation  Plan,  1997  Non-Qualified
Employee Stock Purchase  Plan,  1994 Stock  Incentive Plan and 1994 Stock Option
Plan for Non-Employee Directors (collectively,  the "Plans") and recommending to
the Board of  Directors  changes to the Plans.  During  1998,  the  Compensation
Committee met or acted by unanimous written consent on 18 occasions.

     The Nominating Committee is composed of Mr. Abbott, who serves as Chairman,
and Mr. Mas. The Nominating  Committee,  which met on two occasions during 1998,
recommends  to the Board of  Directors  candidates  for election to the Board of
Directors.  The Nominating  Committee  considers  candidates  recommended by the
shareholders  pursuant  to  written  applications  submitted  to the  Secretary.
Shareholder  proposals  for  nominees  should  include  biographical  and  other
information  regarding the proposed nominee sufficient to comply with applicable
disclosure  rules and a statement from the shareholder as to the  qualifications
and willingness of the candidate to serve on MasTec's Board of Directors.

COMPENSATION OF DIRECTORS

     Directors of MasTec who are not  employees  of MasTec or of any  subsidiary
are paid an annual  retainer of $20,000,  payable in Common Stock.  In addition,
under  the 1994  Stock  Option  Plan for  Non-Employee  Directors,  non-employee
directors  are  eligible to receive  options to purchase up to 15,000  shares of
Common Stock annually at an exercise price equal to the fair market value of the
Common Stock on the date of grant. Directors of MasTec who are also employees of
MasTec do not receive fees or retainers for serving as directors.

EMPLOYMENT AGREEMENT

     Effective  November 18, 1998,  MasTec entered into an Employment  Agreement
(the  "Agreement") with Joel-Tomas Citron relating to his employment as the Vice
Chairman of the Board of Directors.  The Agreement provides that Mr. Citron will
have day-to-day oversight of the business of MasTec. The Agreement is for a term
of two years unless  terminated,  and provides  that Mr.  Citron will be paid an
annual  salary of not less than  $300,000.  The Agreement  further  provides for
payment of a $100,000 fee by MasTec as  compensation  for  services  rendered to
MasTec prior to the Agreement, and a grant of options to purchase 250,000 shares
of Common  Stock at exercise  prices of $20.5625  and  $20.7813  per share.  The



Agreement  also  provides  for a  bonus  to be  paid  contingent  upon  MasTec's
performance  and stock price.  Additionally,  if there is a change of control of
MasTec during Mr. Citron's  employment term or within 180 days  thereafter,  Mr.
Citron will be entitled to all of the unpaid portion of his salary and any bonus
earned or  awarded  for the year in which the  change of  control  occurs and to
certain payments based on stock price levels. Pursuant to the Agreement,  MasTec
has agreed to use its best efforts to assure that Mr. Citron is elected a member
of MasTec's Board of Directors.


                               SECURITY OWNERSHIP
                   OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     The  following  table sets forth the  beneficial  ownership as of March 29,
1999 of Common Stock by (a) each person known to MasTec to beneficially own more
than 5% thereof,  (b) each director of MasTec and each Named  Executive  Officer
(as  defined  under the caption  "Executive  Compensation"  below),  and (c) all
executive  officers  and  directors  of  MasTec  as a  group.  Unless  otherwise
indicated,  each named  shareholder  has sole voting and  investment  power with
respect to the shares beneficially owned by the shareholder.

NAME                                 COMMON STOCK OWNED        PERCENTAGE
- ---------------------------          ------------------        ----------
Jorge Mas .................            13,923,726 (1)              51%
Eliot C. Abbott ...........                34,506 (2)              *
Joel-Tomas Citron .........               222,811 (2)              *
Arthur B. Laffer ..........               124,256 (2)              *
Jose S. Sorzano ...........                31,256 (2)              *
Henry N. Adorno ...........                67,221 (2)(3)           *
Jose Sariego ..............                16,601 (2)              *
Ismael Perera .............                93,260 (2)(3)           *
Carlos A. Valdes ..........                67,734 (2)(3)           *
Carmen Sabater ............                17,625 (2)              *

American Express Company,
American Express Financial
    Corporation and
Growth Portfolio (4) .......            2,179,750 (4)               8%

All  executive officers and
directors as a group
(13 persons) ..............            14,601,720 (2)              53%

- --------------------


(1)  Includes  7,890,811  owned  directly by the Jorge L. Mas Canosa  Holdings I
     Limited  Partnership  (the "Family  Partnership"),  and indirectly by Jorge
     Mas, as the sole officer and director of Jorge L. Mas Holdings Corporation,
     a Texas  corporation,  the sole general partner of the Family  Partnership;
     and  5,587,311  shares  owned of  record by Jorge  Mas  Holdings  I Limited
     Partnership,  a Texas limited partnership ("Jorge Mas Holdings").  The sole
     general partner of Jorge Mas Holdings is Jorge Mas Holdings Corporation,  a
     Texas  corporation  that is wholly-owned by Mr. Mas. Also includes  188,447
     shares   owned  of  record  by  the  Mas  Family   Foundation,   a  Florida
     not-for-profit  corporation  (the  "Family  Foundation");   157,000  shares
     covered  by  options  exercisable  within  60 days of March 29,  1999;  and
     100,157 shares owned of record  individually.  Mr. Mas disclaim  beneficial
     ownership of the shares held by the Family Partnership except to the extent
     of his pecuniary interest therein,  and disclaims  beneficial  ownership of
     all of the shares owned by the Family Foundation.

(2)  The amounts shown include shares covered by options  exercisable  within 60
     days of  March  29,  1999 as  follows:  Eliot  C.  Abbott,  33,584  shares;
     Joel-Tomas Citron, 219,008 shares; Arthur B. Laffer, 33,334 shares; Jose S.
     Sorzano, 30,334 shares; Henry N. Adorno, 50,000 shares; Jose Sariego, 9,200
     shares;  Carmen Sabater,  14,500 shares;  Ismael Perera, 39,460 shares; and
     Carlos A. Valdes, 50,430 shares.

(3)  Messrs.  Adorno,  Perera  and Valdes are no longer  executive  officers  of
     MasTec. Mr. Valdes, however, is the president of MasTec's internal networks
     services division.

(4)  American  Express Company  ("AMEX"),  American Express  Financial  Advisors
     ("AMEXFA") and Growth  Portfolio ("GP") filed a Schedule 13G dated December
     31, 1998 with the SEC  reporting  beneficial  ownership  of more than 5% of
     MasTec's  Common Stock.  As reported in the Schedule 13G, GP possesses sole
     voting power with respect to 1,800,000  shares and AMEX and AMEXFA  possess
     shared  voting  power with  respect to 379,750  shares.  As reported in the
     Schedule 13G, AMEX and AMEXFA possess shared dispositive power with respect
     to 2,179,750  shares,  with respect to 1,800,000 of which GP also possesses
     shared dispositive power.

*   Less than 1%

COMPLIANCE WITH SECTION 16(A) OF THE SECURITIES EXCHANGE ACT OF 1934

     Based solely upon a review of the copies of the forms  furnished to MasTec,
MasTec  believes  that  during  the year ended  December  31,  1998,  all filing
requirements  under  Section  16(a)  of the  Securities  Exchange  Act  of  1934
applicable to its officers,  directors  and greater than 10%  beneficial  owners
were complied  with on a timely basis,  except that Mr. Adorno filed a Report on
Form 3 on February 3, 1998 for election as an officer on January 15,  1998,  Mr.
Citron  filed a Report of Form 4 on January 13, 1999 for the grant of options to
purchase  250,000  shares of Common  Stock on November 18, 1998 and the grant of
118 shares of Common  Stock on  December  31,  1998;  and Messrs.  Mas,  Perera,
Sariego,  and Valdes filed  Reports on Form 4 on April 8, 1998 for option grants
respectively of 50,000 shares,  20,000 shares,  8,000 shares and 8,000 shares on
December 29, 1997 replacing original stock option grants on March 17, 1997.



                          COMPENSATION COMMITTEE REPORT
                            ON EXECUTIVE COMPENSATION

     The Compensation Committee of the Board of Directors is responsible for
establishing and  administering the policies for MasTec's  compensation  program
and for approving the compensation  levels of the executive  officers of MasTec,
including its Chief Executive Officer.  The Compensation  Committee also reviews
with the Chief  Executive  Officer  guidelines for salaries and aggregate  bonus
awards  applicable  to MasTec's  employees  other than its  executive  officers.
During 1998,  the  Compensation  Committee  was composed of Arthur B. Laffer and
Jose  S.  Sorzano,  both  of whom  are  non-employee  directors  of  MasTec  and
"disinterested directors" for purposes of Section 162(m) of the Internal Revenue
Code of 1986.

STATEMENT OF PHILOSOPHY OF EXECUTIVE COMPENSATION

     The  compensation  program of MasTec is  designed to (a) attract and retain
talented executives by providing base compensation reasonably comparable to that
offered by other leading  companies to their  executive  officers,  (b) motivate
executive  officers to achieve the  strategic  goals set by MasTec by linking an
officer's  incentive  compensation  to the  performance of MasTec and applicable
business  units,  as well  as to  individual  performance,  and  (c)  align  the
interests  of  its   executives   with  the  long-term   interests  of  MasTec's
shareholders  through  the  award  of  stock  options  and  other  stock-related
programs.  To implement this  philosophy,  MasTec offers its executive  officers
compensation  packages  that include a mix of salary,  incentive  bonus  awards,
stock options and restricted stock.

     In determining  the level and form of executive  compensation to be paid or
awarded,  the  Compensation  Committee  relies  primarily  on an  assessment  of
MasTec's overall performance in light of its strategic objectives rather than on
any single quantitative or qualitative measure of performance.  The Compensation
Committee considered  principally MasTec's net loss in 1998 in establishing 1998
compensation,   although  the   Compensation   Committee  also   considered  the
performance of particular units and individual performances.

SALARY AND INCENTIVE BONUS

     The base salary of executive officers is determined  initially by analyzing
and evaluating the  responsibilities  of the position and comparing the proposed
base salary with that of officers in  comparable  positions in other  companies.
For 1998 performance,  the Compensation  Committee  increased the base salary of
certain executive officers of MasTec principally to adjust to current comparable
levels.



     In addition to paying a base salary,  MasTec awards incentive  bonuses as a
component of overall  compensation.  Bonus awards are made after considering the
performance of the executive  officer's area of  responsibility or the operating
unit under his control,  if any, and the financial  performance  of MasTec.  The
Compensation  Committee  in 1998  did not  recommend  the  award of  bonuses  to
MasTec's executive officers,  including the Named Executive  Officers,  for 1998
performance.

STOCK INCENTIVE PLAN

     Long-term  incentive  compensation  for executives  consists of stock-based
awards made under  MasTec's  Stock  Incentive  Plan.  The Stock  Incentive  Plan
provides for the granting of options to purchase  Common Stock to key  employees
at exercise  prices  equal to the fair market value on the date of grant and for
the award of restricted stock. The Compensation  Committee believes that the use
of stock options and restricted stock  reinforces the  Compensation  Committee's
philosophy that management  compensation should be clearly linked to shareholder
value.  The  Compensation  Committee  awards options and restricted stock to key
employees,   including  executive  officers,   based  on  current   performance,
anticipated  future  contribution  based on such  performance,  and  ability  to
materially  impact MasTec's  financial  results.  No stock options or restricted
stock were granted or awarded under the Stock Incentive Plan to any of the Named
Executive Officers for 1998 performance.

CEO COMPENSATION

     In setting the incentive  compensation  for Jorge Mas,  MasTec's  Chairman,
President and Chief  Executive  Officer,  the  Compensation  Committee  reviewed
MasTec's  financial  performance  in 1998 compared to the  performance  of other
companies in its industry and MasTec's prior  performance,  as well as the other
factors  described  above.  Based  on  its  review  of  this  information,   the
Compensation Committee decided not to recommend an increase in salary, the award
of an incentive bonus or the grant of stock options or restricted  stock for Mr.
Mas.

                             Respectfully submitted,

                             /S/ ARTHUR B. LAFFER
                             ----------------------
                             Arthur B. Laffer


                             /S/ JOSE S. SORZANO
                             ----------------------
                             Jose S. Sorzano




                             EXECUTIVE COMPENSATION

SUMMARY COMPENSATION TABLE

         The following table summarizes all  compensation  awarded to, earned by
or  paid  to  MasTec's  Chief  Executive  Officer  and  the  other  most  highly
compensated  executive  officers of MasTec whose total salary and bonus exceeded
$100,000 (together, the "Named Executive Officers") for services rendered in all
capacities to MasTec and its subsidiaries for the years ended December 31, 1998,
1997, and 1996.
Long Term Compensation ----------------------- Annual Compensation Awards ------------------------------ ----------------------- Other Restricted Securities All Other Annual Stock Underlying Compen- Name and Salary Bonus Compensation Awards Options sation Principal Position Year ($) ($)(2) (3) ($) # (4) - ------------------ ---- ------ -------- ------------ ---------- ---------- --------- Jorge Mas, Chairman of 1998 330,675 -- -- -- -- 6,000 the Board, Chief 1997 325,000 234,100 -- -- 100,000 6,000 Executive Officer and 1996 325,000 675,000 -- 500,000 50,000 3,500 President Joel-Tomas Citron 1998 123,076 -- -- -- 250,000 -- Vice-Chairman of the 1997 -- -- -- -- -- -- Board (1) 1996 -- -- -- -- -- -- Henry N. Adorno 1998 274,662 -- 300,000(5) 351,090 100,000 -- Executive Vice 1997 -- -- -- -- -- -- President (1) 1996 -- -- -- -- -- -- Jose Sariego 1998 171,605 -- -- -- -- 880 Senior Vice 1997 150,000 84,276 -- -- 15,000 814 President (1) 1996 150,000 25,000 -- 15,000 8,000 424 Ismael Perera, 1998 209,810 -- -- -- -- 1,100 Senior Vice 1997 180,000 187,280 -- -- 15,000 721 President (1) 1996 150,000 160,000 -- 65,000 20,000 392 Carlos A. Valdes, 1998 182,385 -- -- -- -- 840 Senior Vice President 1997 150,000 152,165 -- -- 15,000 1,005 President (1) 1998 130,000 50,000 -- 20,000 8,000 490 Carmen M. Sabater 1998 174,267 -- -- -- -- 540 Senior Vice 1997 -- -- -- -- -- -- President (1) 1996 -- -- -- -- -- --
- ------------------------ (1) Messrs. Adorno, Perera and Valdes were executive officers of MasTec during 1998, but are not currently executive officers of MasTec. Mr. Citron and Ms. Sabater were elected executive officers in 1998. (2) All of the bonuses awarded in 1997 were paid in Company Common Stock. (3) The Named Executive Officers also received certain perquisites and personal benefits that did not exceed applicable reporting thresholds. (4) Represents premiums paid by MasTec for term life insurance on the lives of the Named Executive Officers (5) Represents a bonus paid to Mr. Adorno for joining MasTec in January 1998. AGGREGATE OPTION EXERCISES AND YEAR-END OPTION VALUES The following table sets forth information with respect to each exercise of stock options during the fiscal year ended December 31, 1998 by the Named Executive Officers and the value at December 31, 1998 of unexercised stock options held by the Named Executive Officers.
Number of Shares Underlying Value of Unexercised Shares Unexercised Options at In-the-Money Options Acquired On Value December 31, 1998 At December 31, 1998(1) Exercise Realized (#) ($) Name (#) ($) Exercisable/Unexercisable Exercisable/Unexercisable - ----------------- ----------- ---------- --------------------------- --------------------------- Jorge Mas 0 0 114,000/201,000 1,040,862/1,029,238 Joel-Tomas Citron 0 0 69,444/190,556 36,238/103,646 Henry N. Adorno 0 0 50,000/50,000 1,560/1,560 Jose Sariego 0 0 13,600/28,900 85,893/86,324 Carmen M. Sabater 0 0 8,500/25,000 42,184/60,871 Ismael Perera 0 55,600/67,000 549,641/388,863 Carlos A. Valdes 15,770 $250,241 30,830/48,400 342,107/388,563
- ------------------------ (1) Market value of shares underlying in-the-money options at December 31, 1998 based on the product of $21.125 per share, the fair market value of MasTec's Common Stock on the New York Stock Exchange on December 31 1998, less the exercise price of each option times the number of in-the-money options as of that date. PERFORMANCE GRAPH The following graph compares the cumulative total shareholder return on MasTec's Common Stock from December 31, 1993 through December 31, 1998 with the cumulative total return of the S & P 500 Stock Index and a company-constructed index of (a) two peer companies consisting of Dycom Industries, Inc. and MYR Group, Inc. (the "Old Peer Group") and (b) seven peer companies consisting of Dycom, MYR, Able Telcom Holding Corp., Amerilink Corp., Quanta Services, Inc., International Fibercom, Inc. and Arguss Holdings, Inc. (the "New Peer Group") . The graph assumes that the value of the investment in the Common Stock was $100 on December 31, 1993 and that all dividends were reinvested. This data is not necessarily indicative of future results. The change in the composition of the peer group is to include new public companies that qualify as industry peers to achieve a more representative comparison of performance. Cumulative Total Return ----------------------------------------------- 12/93 12/94 12/95 12/96 12/97 12/98 MASTEC, INC. 100 174 226 902 584 536 NEW PEER GROUP 100 72 81 95 203 324 OLD PEER GROUP 100 86 150 222 474 1,086 S & P 500 100 101 139 171 229 294 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS In 1994, Church & Tower, Inc. (MasTec's predecessor) provided Messrs. Jorge L. Mas, formerly MasTec's Chairman of the Board, Jorge Mas, MasTec's current Chairman of the Board, President and Chief Executive Officer, and Juan Carlos Mas and Jose Ramon Mas, each a shareholder of MasTec and a son of Jorge L. Mas, with a loan of $2,000,000, $1,280,000, $158,000 and $132,000, respectively, bearing interest at prime plus 2% (9.75% at December 31, 1998) with interest due annually and principal due on demand. The loans were made to assist these individuals in meeting their estimated federal income tax obligations related to the 1993 S corporation earnings of Church & Tower, Inc. As of December 31, 1998, the estate of Jorge L. Mas, Jorge Mas, Juan Carlos Mas and Jose Ramon Mas remained indebted to MasTec for $500,000, $400,000, $58,000 and $32,000, respectively, plus accrued interest. In addition, in 1998 MasTec loaned Jorge Mas $200,491 payable on demand, without interest. MasTec purchases and leases construction equipment from a company in which Jorge Mas is a major shareholder. MasTec also makes available certain office space and the part-time services of certain employees to affiliates. MasTec believes the value of these transactions is not material. SELECTION OF AUDITORS PricewaterhouseCoopers LLP was appointed by the Board of Directors of MasTec to audit MasTec's financial statements for 1999. PricewaterhouseCoopers LLP has acted as independent public accountants for MasTec since 1995. Representatives of PricewaterhouseCoopers LLP will be present at the Annual Meeting, will have an opportunity to make a statement if they so desire and will be available to respond to appropriate questions from shareholders. MISCELLANEOUS A list of MasTec's shareholders as of March 29, 1999, the record date for the Annual Meeting, will be available for inspection at the offices of MasTec, 3155 N.W. 77th Street, Miami, Florida, during normal business hours during the ten-day period prior to the Annual Meeting and at the Annual Meeting. Solicitation of proxies will be made initially by mail. MasTec's directors, officers and employees also may solicit proxies in person or by telephone without additional compensation. In addition, proxies may be solicited by certain banking institutions, brokerage firms, custodians, trustees, nominees and fiduciaries who will mail material to or otherwise communicate with the beneficial owners of shares of the Common Stock. In addition, Corporate Investor Communications, Inc. has been engaged by MasTec to act as proxy solicitors and will be paid $3,750 for their services. The cost of this solicitation will be borne by MasTec. Pursuant to Rule 14a-4 under the Securities Exchange Act of 1934, if a shareholder notifies MasTec after February 29, 2000, of an intent to present a proposal at MasTec's annual meeting of shareholders in the year 2000 (and for any reason the proposal is voted upon at that Annual Meeting), MasTec's proxy holders will have the right to exercise discretionary voting authority with respect to the proposal, if presented at the meeting, without including information regarding the proposal in its proxy materials. Any proposal of an eligible shareholder intended to be presented at the annual meeting of shareholders of MasTec in 2000 must be received by MasTec by December 16, 1999 to be eligible for inclusion in MasTec's proxy statement and form of proxy relating to that annual meeting. The Board of Directors does not intend to present and knows of no others who intend to present at the Annual Meeting any matter or business other than that set forth in the accompanying Notice of Annual Meeting of Shareholders. If other matters are properly brought before the Annual Meeting, it is the intention of the persons named in the accompanying form of proxy to vote any proxies on such matters in accordance with their judgment. MasTec's Annual Report on Form 10-K for the fiscal year ended December 31, 1998 is being mailed with this Proxy Statement to shareholders of record on March 29, 1999. BY ORDER OF THE BOARD OF DIRECTORS /S/ NANCY J. DAMON ---------------------------------- Nancy J. Damon Corporate Secretary Miami, Florida April 14, 1999 PROXY FOR 1999 ANNUAL MEETING OF SHAREHOLDERS SOLICITED BY THE BOARD OF DIRECTORS OF MASTEC, INC. The undersigned hereby constitutes and appoints Jorge Mas and Joel-Tomas Citron (the "Proxies"), or any one of them with full power of substitution, attorneys and proxies for the undersigned to vote all shares of Common Stock of MasTec, Inc. (the "Company") that the undersigned would be entitled to vote at the 1999 Annual Meeting of Shareholders to be held at the Hotel Sofitel, 5800 Blue Lagoon Drive, Miami, Florida 33126, at 9:30 a.m. on Tuesday, May 25, 1999, or any adjournments or postponements thereof, on the following matters coming before the Annual Meeting: (1) Election of two (2) Class I Directors as described in the Proxy Statement of the Board of Directors. [ ] FOR the nominees listed below [ ] WITHHOLD AUTHORITY to vote for the nominees listed below JORGE MAS JOEL-TOMAS CITRON (To withhold authority to vote for any individual nominee, write the nominee's name below: (Continued and to be signed on reverse) (2) In their discretion, upon any other business which may properly be presented at the Annual Meeting or any adjournments or postponements thereof. Receipt of the Notice of Annual Meeting of Stockholders, the Proxy Statement dated April 12, 1999, and the Company's Annual Report on Form 10-K for the year ended December 31, 1998 is acknowledged. ANY PROPER PROXY RECEIVED BY THE COMPANY AS TO WHICH NO CHOICE HAS BEEN INDICATED WILL BE VOTED BY THE PROXIES "FOR" THE NOMINEES SET FORTH ABOVE. Date: ________________________, 1999 Signature: _________________________ Signature: _________________________ (Please sign exactly as your name or names appear on this proxy. When signing as executor, guardian, trustee, joint owners, agent, authorized representative or a corporate owner, or other representative, please give your full title as such.)