MasTec Senior Management to Present at the Credit Suisse 2006 Environmental and Engineering Services Conference

May 30, 2006

CORAL GABLES, Fla., May 30 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that its senior management will be making a corporate presentation at the Credit Suisse 2006 Environmental and Engineering Services Conference in New York City on June 1st at approximately 3:05pm EDT. The presentation will be webcast live at http://w.on24.com/r.htm?e=24100&s=21&k=998F304708664EBA46CB3F995ABE08F0, or it can be accessed through a link on the investor relations page of MasTec's website at http://www.mastec.com . The presentation will also be available for replay on the MasTec website for an additional 30 days.

MasTec http://www.mastec.com > is a leading specialty contractor operating throughout the United States and in Canada across a range of industries. The Company's core activities are the building, installation, maintenance and upgrade of communication and utility infrastructure systems.

SOURCE MasTec, Inc.

CONTACT: J. Marc Lewis, Vice President-Investor Relations, MasTec, +1-305-406-1815, or fax, +1-35-406-1886, or marc.lewis@mastec.com