Century Aluminum Company - Company Announcement (is)

Century Aluminum of Kentucky and Steelworkers Reach Tentative Labor Agreement

MONTEREY, CA--(Marketwire - December 15, 2010), 2010-12-16 09:38 CET (GLOBE
NEWSWIRE) -- Century Aluminum of Kentucky, a wholly owned subsidiary of Century
Aluminum 
Company (NASDAQ: CENX), announced today that it has reached a tentative
agreement with the United Steelworkers on a five-year collective bargaining
agreement. The agreement, which covers approximately 500 hourly workers at the
Hawesville smelter, remains subject to ratification. The results of the Union
ratification vote are expected on December 22. 

Century Aluminum Company, the parent of Century Aluminum of Kentucky, owns
primary aluminum capacity in the United States and Iceland. Century's corporate
offices are located in Monterey, California. 

Cautionary Statement This press release may contain "forward-looking
statements" within the meaning of U.S. federal securities laws. The company has
based its forward-looking statements on current expectations and projections
about the future; however, these statements are subject to risks, uncertainties
and assumptions, any of which could cause the company's actual results to
differ materially from those expressed in its forward-looking statements,
including whether or not the tentative agreement with the United Steelworkers
will be finalized or ratified. More information about these risks,
uncertainties and assumptions can be found in the risk factors and
forward-looking statements cautionary language contained in the company's
Annual Report on Form 10-K and in other filings made with the Securities and
Exchange Commission. The company does not undertake, and specifically
disclaims, any obligation to revise any forward-looking statements to reflect
the occurrence of anticip ated or unanticipated events or circumstances after
the date such forward-looking statements are made. 

Certified Advisors for the First North market of the OMX Nordic Exchange
Iceland hf. for Global Depositary Receipts in Iceland: 

         Atli B. Gudmundsson, Senior Manager -- Corporate Finance, NBI hf.
         Steingrimur Helgason, Director -- Corporate Finance, NBI hf.