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Vincent D. Foster has served as one of our directors since August 1998 and became nonexecutive Chairman of the Board of Directors in May 1999. Mr. Foster is a Senior Managing Director of Main Street Mezzanine Fund, LP, a licensed small business investment corporation, and served as Senior Managing Director of Main Street Equity Ventures II, L.P. (and its predecessor firm), a private equity firm, from 1997 through 2002. Mr. Foster is a director of Quanta Services, Inc., and served as nonexecutive Chairman of the Board of Directors of Quanta Services, Inc. from February 1998 through May 2002. From September 1988 through October 1997, Mr. Foster was a partner of Andersen Worldwide and Arthur Andersen LLP, where he served as the director of the corporate finance practice and the mergers and acquisitions practice in the southwestern United States. Mr. Foster has served as a director of the Houston, Texas chapter of the National Association of Corporate Directors, of which he is a founding member, since July 2002. Mr. Foster is also a director of Carriage Services, Inc., a death-care company. | 