Century Aluminum (CENX) 10-K 2012 FY Annual report

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-15689, No. 333-42534, No. 333-65924, No. 333-162624 and No. 333-129698 for the Century Aluminum Company 1996 Stock Incentive Plan, Registration Statement No. 333-15671 for the Century Aluminum Company Non-Employee Directors Stock Option Plan (all on Forms S-8) and Registration Statement No. 333-143315 (on Form S-3), as amended, of our reports dated March 18, 2013, relating to the financial statements and financial statement schedule of Century Aluminum Company and subsidiaries, and the effectiveness of Century Aluminum Company and subsidiaries' internal control over financial reporting, all appearing in this Annual Report on Form 10-K of Century Aluminum Company for the year ended December 31, 2012.

/s/ Deloitte & Touche LLP

Pittsburgh, Pennsylvania

March 18, 2013