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Mark T. Spears joined us in July 1999 as our Senior Vice President and Chief Financial Officer. In December 2005, he became our Executive Vice President and Chief Financial Officer. From November 1997 until June 1998, Mr. Spears served as Vice President, Controller and Principal Accounting Officer of Waste Management, Inc. As a member of a newly-installed executive management team, Mr. Spears helped Waste Management work through certain difficulties related to the restatement of its financial statements through the period ended September 30, 1997. Upon the merger of Waste Management and USA Waste Services Inc. in July 1998, Mr. Spears continued to serve as a Vice President until June 1999. From late 1988 to November 1997, Mr. Spears held various positions of increasing responsibility in the United States and Europe with Waste Management and its subsidiaries. Prior to his employment with Waste Management, Mr. Spears, a certified public accountant, worked in public accounting for approximately nine years. | 