NEWS
For Immediate Release                       From MasTec, Inc.
April 2, 1998                               3155 N.W. 77th Avenue, Suite 135
                                            Miami, Florida 33122-1205
                                            Tel :    (305) 599-1800
                                            Fax :    (305) 406-1908
                                            For more information contact:
                                            Investor Relations Department
                                            invrels@mastec.com


                 MASTEC BOARD APPROVES STOCK REPURCHASE PROGRAM

MIAMI, FL - MasTec, Inc. (NYSE: MTZ) announced today that the Board of Directors
of MasTec has approved a stock repurchase program under which the Company,  from
time to time, will acquire up to 3,000,000  shares of the Company's common stock
through open market  transactions  at prevailing  market prices.  The timing and
duration of the program will be dependent on market conditions and is subject to
applicable laws and existing agreements.

Jorge Mas,  Chairman  and Chief  Executive  Officer,  said:  "We  continue to be
committed to maximizing  stockholder value. Having a repurchase program in place
allows us to  capitalize  on short term swings in our stock price to the benefit
of our core, long term stockholder base and is an efficient use of the Company's
capital. Based on projections,  a buy-back program at current stock prices would
be accretive to earnings per share."

Opening the Lines of  Communication(R)  worldwide,  MasTec is one of the world's
leading telecommunications and related infrastructure service providers, serving
clients  throughout  the  United  States,  Latin  America  and  Spain.  For more
information, please visit our web site at www.mastec.com.

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