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      <div>&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>UNITED
      STATES</strong></font></div>
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      AND EXCHANGE COMMISSION</strong></font></div>
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      D.C. 20549</strong></font></div>
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      <div>&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 14pt; FONT-FAMILY: Times New Roman"><strong>FORM
      8-K</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>CURRENT
      REPORT</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Pursuant
      to Section 13 or 15(d) of the Securities Exchange Act of
      1934</strong></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date
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                A, Suite 200<br></strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Monterey,
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            <td width="34%">&#160;</td>
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            <td width="34%">&#160;</td>
            <td width="33%">&#160;</td>
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    <div>&#160;</div>
    <div>&#160;</div>
    <div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Check
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      satisfy the filing obligation of the registrant under any of the following
      provisions:</font></div>
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              <div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Written
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                230.425) </font></div>
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              <div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Soliciting
                material pursuant to Rule&#160;14a-12 under the Exchange Act (17 CFR
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              <div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pre-commencement
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Item
      5.04. Temporary Suspension of Trading Under Registrant's Employee Benefit
      Plans.</strong></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On
      April
      28, 2006, Century Aluminum Company (the "Company") sent a notice to its
      directors and executive officers notifying them of a blackout period with
      respect to the Century Aluminum of West Virginia, Inc./ United Steelworkers
      of
      America Savings Plan (the "Plan") due to a change in Plan recordkeepers. The
      Company provided the notice to directors and executive officers in accordance
      with Section 306(a) of the Sarbanes-Oxley Act of 2002 and Rule 104 of Regulation
      BTR. A copy of the notice is attached hereto as Exhibit 99.1 and is incorporated
      herein by reference. During the blackout period and for a period of two years
      after the blackout period has ended, security holders of the Company or other
      interested parties may obtain, without charge, information regarding the
      beginning and ending dates of the blackout period upon written request to
      Century Aluminum Company, 2511 Garden Road, Building A, Suite 200, Monterey,
      CA
      93940, Attention: Corporate Secretary.</font></div>
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      following exhibits are filed with this report:</font></div>
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                to Century Aluminum Company directors and executive officers, dated
                April
                28, 2006</font></div>
            </td>
          </tr>

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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
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        <div id="GLFTR" style="WIDTH: 100%" align="left">
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    <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
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      to the requirements of the Securities Exchange Act of 1934, the Registrant
      has
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      duly authorized.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
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          <tr valign="top" bgcolor="#ffffff">
            <td width="50%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="49%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
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            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
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            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">Date:
              <font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>April
              28, 2006</u></font></font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">By:&#160;&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">/s/&#160;Gerald
              J.
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              Gerald J. Kitchen</font></td>
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                Executive Vice President, General Counsel <br>Chief Administrative Officer
                and Secretary</font></div>
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      Index</strong></font></div>
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                  Number</u></font></div>
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                  to Century Aluminum Company directors and executive officers, dated
                  April
                  28, 2006</font></div>
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{"company-data": {"conformed-name": "CENTURY ALUMINUM CO", "cik": "0000949157", "assigned-sic": "3334", "irs-number": "133070826", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-27918", "film-number": "06789271"}, "business-address": {"street1": "2511 GARDEN ROAD", "street2": "BUILDING A SUITE 200", "city": "MONTEREY", "state": "CA", "zip": "93940", "phone": "3042736000"}, "mail-address": {"street1": "2511 GARDEN ROAD", "street2": "BUILDING A SUITE 200", "city": "MONTEREY", "state": "CA", "zip": "93940"}}
UNITED
      STATES
SECURITIES
      AND EXCHANGE COMMISSION
Washington,
      D.C. 20549
FORM
      8-K
CURRENT
      REPORT
Pursuant
      to Section 13 or 15(d) of the Securities Exchange Act of
      1934
Date
      of
      Report (Date of earliest event reported): April 28, 2006
Century
      Aluminum Company
(Exact
      name of registrant as specified in its charter)
Delaware
0-27918
13-3070826
(State
                or other jurisdiction of Incorporation)
(Commission
                File Number)
(IRS
                Employer Identification No.)
2511
                Garden Road
Building
                A, Suite 200
Monterey,
                California
93940
(Address
                of principal executive offices)
(Zip
                Code)
(831)
                642-9300
(Registrant's
                telephone number, including area code)
N/A
(Former
                name or former address, if changed since last
                report)
Check
      the
      appropriate box below if the Form 8-K filing is intended to simultaneously
      satisfy the filing obligation of the registrant under any of the following
      provisions:
□
Written
                communications pursuant to Rule 425 under the Securities Act (17 CFR
                230.425)
□
Soliciting
                material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
                240.14a-12)
□
Pre-commencement
                communications pursuant to Rule 14d-2(b) under the Exchange Act (17
                CFR 240.14d-2(b))
□
Pre-commencement
                communications pursuant to Rule 13e-4(c) under the Exchange Act (17
                CFR 240.13e-4(c))
Item
      5.04. Temporary Suspension of Trading Under Registrant's Employee Benefit
      Plans.
On
      April
      28, 2006, Century Aluminum Company (the "Company") sent a notice to its
      directors and executive officers notifying them of a blackout period with
      respect to the Century Aluminum of West Virginia, Inc./ United Steelworkers
      of
      America Savings Plan (the "Plan") due to a change in Plan recordkeepers. The
      Company provided the notice to directors and executive officers in accordance
      with Section 306(a) of the Sarbanes-Oxley Act of 2002 and Rule 104 of Regulation
      BTR. A copy of the notice is attached hereto as Exhibit 99.1 and is incorporated
      herein by reference. During the blackout period and for a period of two years
      after the blackout period has ended, security holders of the Company or other
      interested parties may obtain, without charge, information regarding the
      beginning and ending dates of the blackout period upon written request to
      Century Aluminum Company, 2511 Garden Road, Building A, Suite 200, Monterey,
      CA
      93940, Attention: Corporate Secretary.
Item
      9.01. Financial Statements and Exhibits
(c)
      Exhibits
The
      following exhibits are filed with this report:
Exhibit
                Number
Description
99.1
Notice
                to Century Aluminum Company directors and executive officers, dated
                April
                28, 2006
2
SIGNATURES
Pursuant
      to the requirements of the Securities Exchange Act of 1934, the Registrant
      has
      duly caused this report to be signed on its behalf by the undersigned thereunto
      duly authorized.
CENTURY
                ALUMINUM COMPANY
Date:
April
              28, 2006
By:
/s/ Gerald
              J.
              Kitchen
Name:
              Gerald J. Kitchen
Title:
                Executive Vice President, General Counsel
Chief Administrative Officer
                and Secretary
3
Exhibit
      Index
Exhibit
                  Number
Description
99.1
Notice
                  to Century Aluminum Company directors and executive officers, dated
                  April
                  28, 2006
4