William P Greubel

Mr. Greubel has been a director of our company since October, 2006. He is a member of the Nominating and Governance Committee and the Personnel and Compensation Committee of the Board. Mr. Greubel was executive director and chairman of Wabash National Corporation from January to May, 2007. Mr. Greubel was chairman and chief executive officer of Wabash National in 2006. He joined Wabash National as president and chief executive officer in 2002. Mr. Greubel previously was chief executive officer of Accuride Corporation from 1998 until 2002 and president from 1994 until 1998. Wabash National is one of the leading manufacturers of semi truck trailers in North America, specializing in the design and production of dry freight vans, refrigerated vans, flatbed trailers, drop deck trailers, and intermodal equipment. Mr. Greubel is a director of Wabash National Corporation.