Directors

John P. O'Brien Chairman of the Board Logan W. Kruger President and Chief Executive Officer Willy R. Strothotte Chairman of the Board of Glencore Interntional AG and Xstrata AG John C. Fontaine Counsel in the law firm of Hughes Hubbard Reed and Retired President Knight Ridder, Inc. Jack E. Thompson Member of the Boards of Directors of Anglo American, Centerra Gold, Rinker Group and Tidewater

Robert E. Fishman, PhD Chief Executive Officer of AREVA Solar Peter Jones Former President and Chief Operating Officer Inco Limited Jarl Berntzen Founder, B!Global Strategic Advisers Andrew Michelmore Chief Executive Officer of Minerals and Metals Group Catherine Z. Manning Former Partner PricewaterhouseCoopers Ivan Glasenberg Chief Executive Officer of Glencore International AG