MasTec Senior Management to Present at the Kaufman Brothers Annual Growth Conference

August 29, 2006

CORAL GABLES, Fla., Aug. 29 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that its senior management will be making a corporate presentation at the Kaufman Brothers Annual Growth Conference in New York City on September 6th at approximately 10:20am EDT. The presentation will be webcast live at http://www.wsw.com/webcast/kbro11/mtz/, 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, +1-305-406-1815, or fax: +1-305-406-1886, marc.lewis@mastec.com