Biography

Mr. Shanfelter has been a member of our board since May 2007 and has served as chairman of our compensation committee since May 2007. He is currently the Chairman of Global HR Research LLC, a private company that provides products and services in the pre employment background and drug testing industry. Mr. Shanfelter is also a member of the boards of Patriot Risk, a workmen's compensation insurance company and Sabre Industries, a manufacturer of galvanized steel pole for the cell and power industries. Additionally, Mr. Shanfelter served as a member of the board of directors of MasTec Inc. ( NYSE: MTZ) a publicly traded specialty contractor from August 2001 until December of 2008 and as Mastec’s Chief Executive Officer and President from August 2001 until March 2007.Mr . Shanfelter was MasTec’s Chief Operating Officer and prior to that served as a Division President starting in 1997. Mr. Shanfelter has been in the power and telecommunication infrastructure industry since 1981 and has been a member of the Society of Cable engineers since 1982 as well as the National Cable Television Association since 1991. Mr. Shanfelter has served as President and Board member of the industry trade group, Power and Communication Contractors Association (“PCCA”).