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Current Officers and Directors <br />as of February 23, 2009 <br />Rio Tinto America Holdings Inc. (name change 7128/1997) <br />A Delaware Corporation Incorporated 1/19/1989 <br />Address: 505 South Gillette Avenue <br />Caller Box 3009 <br />Gillette, Wyoming 82717 -3009 <br />AVS Entity ID No: 145520 <br />FEIN: 13- 3504538 <br />Director /Officer Name Title <br />Role Appointed <br />Kevin L. Baker <br />Director <br />Director <br />12/6/2004 <br />Michael C. Barrett <br />Director <br />Director <br />4/23/2007 <br />Christopher Lenon <br />Chairman <br />Director <br />5/17/1993 <br />Kay G. Priestly <br />Director <br />Director <br />4/23/2007 <br />Ulf Quellmann <br />Director <br />Director <br />5/1/2008 <br />Christopher Lenon <br />President and Chief Executive Officer <br />Officer <br />12/2/1993 <br />Michael C. Barrett <br />Vice President and Chief Financial Officer <br />Officer <br />4/23/2007 <br />Ulf Quellmann <br />Vice President <br />Officer <br />5/1/2008 <br />Kevin L. Baker <br />Chief Legal Officer <br />Officer <br />4/23/2007 <br />Shannon S. Crompton <br />Secretary <br />Officer <br />3/30/1999 <br />R. J. Schlenker <br />Controller <br />Officer <br />7/26/2007 <br />Ulf Quellmann <br />Treasurer <br />Officer <br />5/1/2008 <br />Exhibit 2 -25 Revision Date: 3/24/09 <br />Revision No.: MR -98 <br />