Century Aluminum Company - Company Announcement (is)

Century Aluminum of Kentucky and Steelworkers Reach Tentative Labor Agreement

MONTEREY, CA--(Marketwire - October 21, 2010) - 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 four-year collective bargaining agreement. The agreement, which covers
approximately 500 hourly workers at the Hawesville smelter, remains subject to
ratification. The Union has scheduled a ratification vote for October 28.
Century Aluminum Company 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 anticipated or unanticip ated 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. 

Contacts:
Media
Mike Dildine
831-642-9364

Investors
Shelly Lair
831-642-9357