MasTec Schedules Second Quarter 2012 Earnings Release and Conference Call

July 23, 2012

CORAL GABLES, Fla., July 23, 2012 /PRNewswire/ -- MasTec, Inc. (NYSE: MTZ) today announced that it will release results of operations for the quarter ended June 30, 2012 after the market closes on Thursday, August 2, 2012. Senior Management will also hold a conference call to discuss these results on Friday, August 3, 2012 at 9:00 a.m. Eastern time

The call-in number for the conference call is (719) 457-2647 and the replay number is (719) 457-0820, with a pass code of 9919040.  The replay will run for 30 days.  Additionally, the call will be broadcast live over the Internet and can be accessed and replayed through the investor relations section of the Company's website at www.mastec.com.

MasTec, Inc. is a leading infrastructure construction company operating mainly throughout North America across a range of industries. The Company's activities include the engineering, building, installation, maintenance and upgrade of energy, communication and utility infrastructure, such as: electrical utility transmission and distribution, natural gas and petroleum pipeline infrastructure, wireless, wireline and satellite communications, wind farms, solar farms and other renewable energy, industrial infrastructure and water and sewer systems. MasTec's customers are primarily in the utility, communications and government industries. The Company's corporate website is located at www.mastec.comJose Mas, CEO of MasTec, has led the Company since April of 2007.

SOURCE MasTec, Inc.

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