JOINT FILING AGREEMENTJoint Filing Agreement • February 4th, 2009 • Glencore Investment Pty Ltd. • Metal mining
Each of the undersigned hereby agrees that this Amendment No. 6 to the statement on Schedule 13D is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
