0001144204-11-020347 Sample Contracts

JOINT FILING AGREEMENT

Joint Filing Agreement • April 6th, 2011 • Glencore International Ag • Primary production of aluminum

• Contract Type
  Joint Filing Agreement
• Filed
  April 6th, 2011
• Company
  Glencore International Ag
• Industry
  Primary production of aluminum

Each of the undersigned hereby agrees that this Amendment No. 15 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.

April 5, 2011 Glencore Baarermattstrasse 3 CH-6341 Baar, Switzerland Attn: Head of Aluminum Department Gentlemen:

Glencore International Ag • April 6th, 2011 • Primary production of aluminum • New York

• Company
  Glencore International Ag
• Filed
  April 6th, 2011
• Industry
  Primary production of aluminum
• Jurisdiction
  New York

This letter constitutes the agreement (the “Agreement”) between Century Aluminum Company (the “Company”), on the one hand, and Glencore AG (“Glencore”) and each of the other Persons (as defined below) set forth on the signature pages hereto (the “Glencore Affiliates”), on the other hand, with respect to the matters set forth below. Glencore, the Glencore Affiliates and the affiliates (as defined below) of each of the foregoing are collectively referred to as the “Glencore Group.”