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Mr. Williams was Executive Vice President of Strategic Development of Vartec Telecom, Inc., an international consumer telecommunications services company, from August 2002 until May 2004, and was appointed interim Chief Financial Officer of Vartec in November 2003. From 2000 to August 2003, Mr. Williams served as Executive Chairman of the Board of PowerTel, Inc., a public company which provided telecommunications services in Australia. From 1991 to 2002, he served in various executive positions with Williams Communications Group, a subsidiary of The Williams Companies, that provided global network and broadband media services, most recently as Senior Vice President Corporate Development and General Manager International. He was President and owner of MediaTech, Incorporated, a manufacturer and dealer of computer tape and supplies, from 1987 until the company was sold in 1992. Mr. Williams has served on the Board of Directors of Willbros Group, Inc. since May 2004. | 