Century Aluminum Company - Company Announcement

Century, Big Rivers and Kenergy File Definitive Energy Agreements for Sebree Smelter With the Kentucky Public Service Commission

CHICAGO, IL--(Marketwired - November 20, 2013) - Century Aluminum Sebree LLC, a
wholly owned subsidiary of Century Aluminum Company (NASDAQ: CENX), Kenergy
Corp. and Big Rivers Electric Corporation today announced that they have
finalized and filed with the Kentucky Public Service Commission definitive
agreements among the parties for a new power arrangement for the Sebree
aluminum smelter, located in Henderson County, KY. These agreements and the
filing are a first step in finalizing the arrangement. The agreement is subject
to approvals from various third parties, including the Kentucky Public Service
Commission and the USDA Rural Utilities Service. The parties will continue to
move as expeditiously as possible to finalize the agreement in advance of the
expiration of the current power contract on January 31, 2014. 

The Sebree smelter has an annual production capacity of 205,000 tonnes of
primary aluminum and employs approximately 480 men and women. 

Century Aluminum Company owns primary aluminum capacity in the United States
and Iceland. Century's corporate offices are located in Chicago, Illinois. More
information can be found at www.centuryaluminum.com. 

Big Rivers Electric Corporation is a member-owned, not-for-profit, wholesale
electric generation and transmission cooperative headquartered in Henderson,
Kentucky that is owned by three distribution cooperative Members -- Jackson
Purchase Energy Corporation, headquartered in Paducah; Kenergy Corp,
headquartered in Henderson; and Meade County Rural Electric Cooperative
Corporation, headquartered in Brandenburg. These Member cooperatives deliver
retail electric power and energy to over 113,000 residential, commercial, and
industrial customers in portions of 22 western Kentucky counties. 

Kenergy Corp. is a nonprofit electric cooperative that serves 55,282 members in
14 counties in western Kentucky, including Breckinridge, Caldwell, Crittenden,
Daviess, Hancock, Henderson, Hopkins, Livingston, Lyon, McLean, Muhlenberg,
Ohio, Union and Webster. 

Cautionary Statement

This press release contains "forward-looking statements" within the meaning of
the Private Securities Litigation Reform Act of 1995. 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.
Such risks and uncertainties may include, without limitation, whether or not
the parties are able to obtain all necessary approvals and consents and the
market pass through arrangement can be completed prior to the expiration of the
current power contract. Forward-looking statements in this press release
include statements regarding the completion of an agreement to provide, and the
ultimate provision of, market priced power to the Sebree smelter. More
information about these risks, uncertainties and assumptions 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. 

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.


Century Aluminum Contacts:
Mike Dildine (media)
312-696-3142

Shelly Harrison (investors)
312-696-3140

Big Rivers Electric Corp. Contacts:
Mark Bailey
Mark.bailey@bigrivers.com
270-827-2561

Marty Littrel
Marty.littrel@bigrivers.com
270-844-6153 (office)
270-577-5496 (cell)

Kenergy Corp. Contacts:
Gregory Starheim
gstarheim@kenergycorp.com
270-689-6104

Renee Beasley-Jones
rjones@kenergycorp.com
270-689-6103