Exhibit 99.1


                               Certification of
           the Chief Executive Officer and Chief Financial Officer
          pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
                               (18 U.S.C. 1350)

        In connection with the quarterly report on Form 10-Q of Century
Aluminum Company (the "Company") for the quarter ended March 31, 2003, as filed
with the Securities and Exchange Commission on the date hereof (the "Report"),
Gerald A. Meyers, as Chief Executive Officer of the Company, and David W.
Beckley, as Chief Financial Officer of the Company, each hereby certifies,
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best
of his knowledge:

                1.  This Report fully complies with the requirements of Section
                    13(a) or 15(d) of the Securities Exchange Act of 1934; and

                2.  The information contained in this Report fairly presents,
                    in all material respects, the financial condition and
                    results of operations of the Company.


        /s/ Gerald A. Meyers                   /s/ David W. Beckley
       ---------------------                   --------------------
By:    Gerald A. Meyers                 By:    David W. Beckley
Title: Chief Executive Officer          Title: Chief Financial Officer
Date:  May 15, 2003                     Date:  May 15, 2003


A signed original of this written statement required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to
the Securities and Exchange Commission or its staff upon request.