Century Aluminum Company - Company Announcement

Century Aluminum Company Announces Pricing of $250 Million Offering of Senior Secured Notes

CHICAGO, IL--(Marketwired - May 23, 2013) - Century Aluminum Company (NASDAQ:
CENX) ("Century") announced today that it has priced $250 million aggregate
principal amount of senior secured notes due 2021. The notes will have an
interest rate of 7.5% per annum and are being issued at a price equal to
98.532% of their face value. Century intends to use all net proceeds from the
sale of the notes to repay all of its $250 million outstanding 8% Senior
Secured Notes due 2014. 

As the offering is a private placement, the notes will be offered and sold only
to qualified institutional buyers in reliance on Rule 144A under the Securities
Act of 1933 (the "Securities Act") and to certain non-U.S. persons in
transactions outside the United States in reliance on Regulation S under the
Securities Act. The notes to be offered have not been, and will not be,
registered under the Securities Act or any state securities laws and may not be
offered or sold in the United States absent registration or an applicable
exemption from registration requirements. 

This press release does not constitute an offer to sell or the solicitation of
an offer to buy any of the notes nor shall there be any sale of the notes in
any jurisdiction in which such offer, solicitation or sale would be unlawful.
This news release is being issued pursuant to and in accordance with Rule 135c
under the Securities Act. This press release contains information about pending
transactions, and there can be no assurance that these transactions will be
completed. 

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. 

Cautionary Statement

This press release contains certain forward-looking statements within the
meaning of the Securities Act of 1933 and the Securities Exchange Act of 1934,
which involve known and unknown risks, uncertainties and other factors
including those described from time to time in Century's filings with the
Securities and Exchange Commission, including Century's Form 10-K for the year
ended December 31, 2012 and Form 10-Q for the quarter ended March 31, 2013.
Consequently, the forward-looking statements contained herein should not be
regarded as representations that the projected outcomes can or will be
achieved. 

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.