MasTec, Inc. (MasTec) is a specialty contractor operating mainly throughout the United States and Canada, and across a range of industries. The Company’s principal activities include building, installation, maintenance and upgrade of utility and communications infrastructure. MasTec’s primary customers in various industries include utilities (including wind farms and other renewable energy, natural gas gathering systems and pipeline infrastructure), communications (including telephony, satellite television and cable television) and government (including water and sewer, utilities and communications work on military bases). In May 2008, it acquired Pumpco, Inc., a mid-stream natural gas pipeline construction company. In July 2008, MasTec acquired certain assets of Nsoro, LLC, which specializes in wireless network design, construction, upgrade and maintenance. In December 2008, it acquired Wanzek Construction, Inc.