John Van Heuvelen Joins MasTec Board

June 27, 2002

MIAMI, June 27 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that John Van Heuvelen, former President and Chief Operating Officer of Morgan Stanley Dean Witter Trust Company and Executive Vice President of Morgan Stanley Advisors Asset Management Division, has joined MasTec's Board of Directors.

Mr. Van Heuvelen spent 13 years with Morgan Stanley and Dean Witter Reynolds in various executive positions in the mutual fund, unit investment trust and municipal bond divisions before serving as president of Morgan Stanley Dean Witter Trust Company from 1993 until 1999. Since 1999, Mr. Van Heuvelen has been a private equity investor based in Denver, Colorado. His investment activities have included private telecom and technology firms, where he still remains active.

Mr. Van Heuvelen brings to MasTec strengths in finance, accounting, fiduciary matters, state and federal regulatory affairs and corporate governance. He also has extensive experience in the technology and telecommunications industries.

"We are pleased to have a person of Mr. Van Heuvelen's experience and reputation join us on MasTec's Board of Directors," commented Jorge Mas, Chairman of the Board of MasTec.

MasTec (www.mastec.com) is a leading communications and energy infrastructure service provider in North America and Brazil. The Company designs, builds, installs, maintains and monitors internal and external networks for leading telecommunications, broadband, energy and Fortune 1000 companies.

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SOURCE MasTec, Inc.
Web site: http: //www.mastec.com
CONTACT: J. Marc Lewis, Vice President Investor Relations of MasTec, Inc., +1-305-406-3165, or marc.lewis@mastec.com