William J. Doyle, of Winnetka, Illinois, is President and CEO of Potash Corporation of Saskatchewan Inc. He joined PotashCorp as President of PCS Sales in 1987, after a career with International Minerals and Chemical Corporation. He is Chairman of Canpotex Limited, on the boards of The Fertilizer Institute and International Plant Nutrition Institute, as well as a member of the Executive Management group of the International Fertilizer Industry Association. Mr. Doyle is a graduate of Georgetown University in Washington, DC and is a member of its Board of Directors. He joined the PCS Inc. Board in 1989.