Century Aluminum Company - Company Announcement

Century Aluminum Expands Share Repurchase Program

Century Aluminum Expands Share Repurchase Program

CHICAGO, IL--(Marketwired - February 26, 2015) - Century Aluminum Company
(NASDAQ: CENX ) announced today that its Board of Directors has increased the
size of the Company's ongoing share repurchase program by $20 million. Together
with today's increase, the Company had a total of $30.1 million authorized for
future share repurchases as of February 26, 2015. 

Purchases made pursuant to the share repurchase program will be made in either
the open market or in privately negotiated transactions periodically as
permitted by federal securities laws and other legal requirements. The timing,
manner, price and amount of any repurchases will be determined by the Company
in its discretion and will be subject to economic and market conditions, stock
price, applicable legal requirements and other factors. The program may be
suspended or discontinued at any time and has no expiration date. 

About Century Aluminum

Century Aluminum Company owns primary aluminum capacity in the United States
and Iceland. Century's corporate offices are located in Chicago, IL. Visit
www.centuryaluminum.com for more information. 

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, Landsbankinn hf.

Steingrimur Helgason, Director -- Corporate Finance, Landsbankin