Century Aluminum Company - Company Announcement (is)

Century Announces Continued Operation of Two Potlines at Hawesville, KY Smelter

Remaining Operations to Focus on High-Purity Production

CHICAGO, IL--(Marketwired - September 30, 2015) - Century Aluminum of Kentucky,
a wholly-owned subsidiary of Century Aluminum Company (NASDAQ: CENX), today
announced that it expects to continue to operate its Hawesville, Kentucky
smelter at approximately 40% of capacity (two potlines) following October 24,
2015. Century had previously announced its intent to curtail 100% of its
Hawesville operations beginning on October 24th, but now will only reduce its
operations to 40% of capacity. 

The remaining operations at the Hawesville smelter will primarily produce
high-purity aluminum and provide molten metal to local customers. Continued
operations at 40% of capacity will be dependent on acceptable commercial
conditions, including aluminum prices, product premiums and operating costs. "We are pleased to be able to announce that partial operations will continue at
Hawesville," commented Michael Bless, President and CEO. "Hawesville's ability
to produce high-purity aluminum enables the smelter to produce a unique product
that will hopefully allow the plant to survive, albeit at significantly reduced
production levels, in today's market conditions. "We regret the need to curtail any of Hawesville's operations, which cannot
compete against the improper export of unfairly-subsidized Chinese aluminum
products. The continued expansion of Chinese aluminum capacity coupled with the
significant increase in unfairly-subsidized Chinese aluminum exports has caused
the collapse in industry pricing and put this excellent plant in jeopardy.
These issues must be addressed immediately," Bless said. 

In connection with the announcement, Century Aluminum of Kentucky issued a new
conditional federal Working Adjustment and Retraining Notification Act (WARN)
notice to employees who will be impacted by continuing a two potline operation.
The new WARN notice informs those employees that the remaining two potline
operation is expected to be curtailed if certain high purity production levels
are not achieved or if there is a material adverse change in commercial
circumstances. The previous WARN notice issued on August 25, 2015 remains in
effect for the remaining employees. 

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.

Cautionary Statement

This press release contains "forward-looking statements" within the meaning of
the Private Securities Litigation Reform Act of 1995, which are subject to the"safe harbor" created by section 27A of the Securities Act of 1933, as amended
(the "Securities Act"), and section 21E of the Securities Exchange Act of 1934,
as amended (the "Exchange Act"). Forward-looking statements are statements
about future, not past, events and involve certain important risks and
uncertainties, any of which could cause our actual results to differ materially
from those expressed in our forward-looking statements. These forward-looking
statements may be identified by the words "believe,""expect,""anticipate,""intend,""plan,""estimate,""forecast" or words of similar meaning, or future
or conditional verbs such as "will,""would,""should,""could,""might," or"may." Forward-looking statements in this press release include, without
limitation, statements with respect to our future plans and expectations
regarding the operation of the Hawesville plant and the effects of any
curtailment on the financial and operating performance of the Company and its
subsidiaries; our business objectives, strategies and initiatives, including
our ability to achieve targeted product mix and production levels, productivity
improvements or cost reductions; future global and local financial and economic
conditions; our assessment of the aluminum market and aluminum prices
(including premiums). More information about the risks, uncertainties and
assumptions affecting the Company can be found in the risk factors and
forward-looking statements cautionary language contained in our Annual Report
on Form 10-K and in other filings made with the Securities and Exchange
Commission. We do not undertake, and specifically disclaim, any obligation to
revise any forward-looking statements to reflect the occurrence of future
events or circumstances. 


Century Aluminum Contacts:
Kenny Barkley (media)
270.521.7424

Peter Trpkovski (investors)
312.696.3112