Century Aluminum Company - Company Announcement

Century Issues WARN Notice at Hawesville, KY Smelter

CHICAGO, IL--(Marketwired - August 25, 2015) - Century Aluminum of Kentucky, a
wholly-owned subsidiary of Century Aluminum Company (NASDAQ: CENX), today
issued a notice to employees at its Hawesville, Kentucky aluminum smelter of
its intent to curtail its plant operations beginning on October 24, 2015 unless
the current pricing environment substantially changes. The announcement was
made pursuant to the federal Working Adjustment and Retraining Notification Act
(WARN). "We regret the need to issue this notice at this time and fully understand the
impact it will have on our employees, in our community and with our customers,"
commented Michael Bless, President and CEO. "The simple fact is that the recent
significant decline in the aluminum price is being driven by unfair trade
behavior over which our industry has no control. Chinese overcapacity and the
improper export of heavily-subsidized Chinese aluminum products have undercut
an otherwise viable plant. These issues must be addressed immediately. The
strategy we set forth for Hawesville continues to be valid. It is solely the
collapse in industry pricing, brought about by this improper trade behavior,
that has put this excellent plant in jeopardy," Bless said. 

There are approximately 565 employees at Hawesville. This action does not
affect Century's Sebree or Mt. Holly operations. 

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, Landsbankinn hf.