William E.

William E. "Bill" Cobb

Vice President and Chief Sustainability Officer

Bill Cobb, Vice President and Chief Sustainability Officer, has responsibility for liability management, environmental services, responsible production, climate, sustainability, social responsibility and community development. Mr. Cobb has over 40 years of experience as an environmental professional, including over 20 years with the company. He has a Bachelor of Science in Chemical Engineering and a Master of Science in Mineral Economics from Colorado School of Mines.