Investor News

* Results in line with previous guidance * Reconfirms 3rd quarter guidance * Provides 4th quarter outlook MIAMI, Aug. 7 /PRNewswire/ -- MasTec, Inc.

MIAMI, Aug. 6 /PRNewswire/ -- In conjunction with MasTec's (NYSE: MTZ) Second Quarter earnings release, you are invited to listen to its conference call that will be broadcast live over the Internet on August 7th at 11:00 a.m. EST. WHAT: MasTec Second Quarter Earnings Release WHEN: 11:00 a.m.

MIAMI, June 27 /PRNewswire/ -- MasTec, Inc. (NYSE: MTZ) today announced that revenue for the second quarter ending June 30, 2001 is anticipated to be approximately $325 million, compared to revenue of $298 million in the second quarter of 2000.