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Bertrand P. Collomb
Former Chairman and Chief Executive Officer of Lafarge

A director since 2007, Mr. Collomb is former chairman and chief executive officer of Lafarge, a global manufacturer of building materials, headquartered in Paris, France. He is also a director of Total and ATCO Ltd. Mr. Collomb is chairman of the French Institute of International Relations (IFRI) and the French Institute for Science and Technology (IHEST). Mr. Collomb is founder of the Center for Management Research at the Ecole Polytechnique, former chairman of the World Business Council for Sustainable Development and a member of the Institut de France.  Mr. Collomb serves on the Environmental Policy and Corporate Governance committees for the Board.