NEWS
For Immediate Release                     From MasTec, Inc.
January 15, 1998                          3155 N.W. 77th Avenue
                                          Suite 135
                                          Miami, Florida 33122-1205
                                          Tel :    (305) 599-1800
                                          Fax :    (305) 406-1908
                                          For more information contact:
                                          Edwin D. Johnson,
                                          Chief Financial Officer
                                          ejohnson@mastec.com


                MASTEC, INC. ELECTS NEW CHAIRMAN AND BOARD MEMBER

     MIAMI,  FL - MasTec,  Inc.  (NYSE:  MTZ)  announced  today  that Jorge Mas,
President  and  Chief  Executive  Officer,  has  been  elected  by the  Board of
Directors to the position of Chairman of the Board.

     MasTec also announced the  appointment of Joel-Tomas  Citron as a Director.
Mr. Citron is the managing  partner of Triscope  Capital LLC and has served in a
senior executive  capacity at numerous private equity and investment  management
companies. Mr. Citron has served on a number of Board of Directors in Europe and
the United  States,  including  Chairman  positions  with  American  Information
Systems,  Inc.,  a provider of system  solutions  and  proprietary  software for
intranet  and  internet  users,  and Zannex  Group Ltd.,  an Israeli  brokerage,
investment banking and asset management firm.

     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.

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