CENTURY ALUMINUM CO
EX-10.10: OMNIBUS AMENDMENT AGREEMENT
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<TYPE>EX-10.10
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<DESCRIPTION>EX-10.10: OMNIBUS AMENDMENT AGREEMENT
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<DIV align="right" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT&nbsp;10.10</B></DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">OMNIBUS AMENDMENT AGREEMENT<BR>
TO<BR>
EMPLOYMENT AGREEMENT
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>THIS
OMNIBUS AMENDMENT AGREEMENT</B> (this &#147;<U>Amendment</U>&#148;) is made as of December&nbsp;8, 2005, by and
between Century Aluminum Company, a Delaware corporation (the
&#147;<U>Company</U>&#148;), and Gerald J. Kitchen
(the &#147;<U>Executive</U>&#148;).
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<DIV align="center" style="font-size: 10pt; margin-top: 6pt"><B>RECITALS</B>
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A.&nbsp;The Company and the Executive are parties to an Employment Agreement,
made as of January&nbsp;1, 2002, as amended by that Amendment Agreement, dated as of
December&nbsp;9, 2003, and that Second Amendment to Employment Agreement, dated as of
June&nbsp;28, 2005 (collectively, the &#147;<U>Employment Agreement</U>&#148;);
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.&nbsp;The Company and the Executive are parties to a Severance Protection
Agreement, dated as of August&nbsp;1, 2005 (the &#147;<U>SPA</U>&#148;);
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.&nbsp;The Company and the Executive are parties to a Consulting Agreement, dated
as of January&nbsp;1, 2006 (the &#147;Consulting Agreement&#148;);
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.&nbsp;The Company desires to (i)&nbsp;extend the term of the Employment Agreement
and the SPA through March&nbsp;31, 2006; (ii)&nbsp;amend the Employment Agreement to reflect
Executive&#146;s current Base Salary and additional compensation payments; and (iii)&nbsp;modify
the term of the Consulting Agreement;
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;E.&nbsp;Executive is willing to continue his employment on the terms and conditions
set forth in this Amendment;
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;F.&nbsp;Executive and the Company have agreed to amend the Employment
Agreement, the SPA and the Consulting Agreement on the terms and conditions set forth
in this Amendment;
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NOW, THEREFORE, THE PARTIES AGREE AS FOLLOWS:
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.&nbsp;<U>Term of Employment.</U> Section&nbsp;1 of the Employment Agreement is
hereby amended by substituting &#147;March&nbsp;31, 2006&#148; for &#147;December&nbsp;31, 2005&#148; in line
two.
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.&nbsp;<U>Base Salary.</U> Section&nbsp;2.1(a)(i) of the Employment Agreement is
hereby amended by substituting &#147;25,625&#148; for &#147;22,833&#148; in line one and &#147;307,500&#148; for
&#147;274,000&#148; in line six. The following new sentence in its entirety shall be added at
the end of Section&nbsp;2.1(a)(i):
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<DIV align="left" style="margin-top: 6pt; margin-left: 5%; font-size: 10pt">&#147;In addition to the foregoing Base Salary, Executive shall, beginning
January&nbsp;1, 2006, be paid an additional payment of $24,416.67 each month
during the term of this Agreement.&#148;
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.&nbsp;<U>Term of Severance Protection Agreement.</U> Section&nbsp;1 of the SPA is hereby
amended by substituting &#147;March&nbsp;31, 2006&#148; for &#147;December&nbsp;31, 2005&#148; in line three.
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.&nbsp;<U>Term of Consulting Agreement.</U> The first &#147;WHEREAS&#148; clause of the
Consulting Agreement is hereby amended by substituting &#147;March&nbsp;31, 2006&#148; for
&#147;December&nbsp;31, 2005&#148; in the line three. Section&nbsp;1 of the Consulting Agreement is hereby
amended by substituting &#147;April&nbsp;1, 2006&#148; and &#147;March&nbsp;31, 2007&#148; for &#147;January&nbsp;1, 2006&#148;
and &#147;December&nbsp;31, 2007&#148; in line two. Section&nbsp;11 of the Consulting Agreement is
hereby amended by substituting &#147;March&nbsp;31, 2007&#148; for &#147;December&nbsp;31, 2005&#148; in line six.
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.&nbsp;<U>Incorporation of Amendment Agreement.</U> Except as explicitly set
forth in this Amendment, the parties do not intend to modify the terms and
conditions of the Employment Agreement, the SPA or the Consulting Agreement;
those terms and conditions shall remain in full force and effect, and they shall be
incorporated into this Amendment by this reference.
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    <TD colspan="3" valign="top" align="left"><B>CENTURY ALUMINUM COMPANY</B></TD>
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<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">By:
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    <TD align="left" valign="top" nowrap>/s/ Craig A. Davis
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Craig A. Davis<BR>
Chairman and Chief Executive Officer
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    <TD align="left" valign="top">/s/ Gerald J. Kitchen
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Gerald J. Kitchen
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