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Executive Team
Executive Team | Board of Directors
Biography PhotoDavid L. Lamp
Executive Chairman


Biography PhotoMark A. Pytosh
Chief Executive Officer and President


Biography PhotoTracy D. Jackson
Executive Vice President and Chief Financial Officer


Biography PhotoMelissa M. Buhrig
Executive Vice President, General Counsel and Secretary


Biography PhotoJanice T. DeVelasco
Vice President, Environmental, Health, Safety & Security


Biography PhotoMatthew W. Bley
Chief Accounting Officer and Corporate Controller