MasTec Announces Receipt of Federal Income Tax Refund

March 13, 2002

MIAMI, March 13 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that it received the federal income tax refund of approximately $42.9 million from the Internal Revenue Service that was referenced in the February 19, 2002 earnings release. The federal tax refund resulted from net losses reflected through December 31, 2001. The Company used the proceeds to repay all borrowings under its Revolving Credit Facility.

MasTec (www.mastec.com) is a leading communications and energy infrastructure service provider in North America and Brazil. We design, build, install, maintain and monitor internal and external networks for leading telecommunications, broadband, energy and Fortune 1000 companies.

Except for historical information, the matters discussed in this press release and accompanying materials may contain forward-looking statements, such as statements regarding MasTec's future results and plans and anticipated trends in the industries and economies in which MasTec operates. These forward-looking statements are based on MasTec's current expectations and are subject to a number of risks, uncertainties, and assumptions, including that our revenue may differ from that projected, that we may be further impacted by slowdowns in our clients' businesses or deterioration in our clients' financial condition, that our reserves may be inadequate or our equity investments may be impaired, that we may experience increased costs associated with realigning our business or may be unsuccessful in those efforts, and that we may not continue to be in compliance with our credit facility covenants. Should one or more of these risks or uncertainties materialize, or should the underlying assumptions prove incorrect, actual results may differ significantly from results expressed or implied in any forward-looking statements made by MasTec. These and other risks are detailed in this press release and in other documents filed by MasTec with the Securities and Exchange Commission, including our registration statement on Form S-3 (No. 333-90027). MasTec does not undertake any obligation to revise these forward- looking statements to reflect future events or circumstances.

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SOURCE MasTec, Inc.
Web site: http: //www.mastec.com
CONTACT: Donald P. Weinstein, Executive Vice President & CFO, MasTec, +1-305-406-1866, or dweinstein@mastec.com