Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Lair Michelle
 2. Date of Event Requiring Statement (Month/Day/Year)
06/09/2006		 3. Issuer Name and Ticker or Trading Symbol
CENTURY ALUMINUM CO [CENX]
(Last)
(First)
(Middle)
2511 GARDEN ROAD, BUILDING A, SUITE 200		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Treasurer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

MONTEREY, CA 93940		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 119.698
I
By 401(k) Plan (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to Buy)   (2) 12/08/2014 Common Stock 1,334 $ 23.18 D  
Employee Stock Option (Right to Buy)   (3) 12/08/2015 Common Stock 3,600 $ 24.7 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Lair Michelle
2511 GARDEN ROAD
BUILDING A, SUITE 200
MONTEREY, CA 93940		       Treasurer  

Signatures

By William J. Leatherberry as Attorney-in-Fact 06/13/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Reported by 401(k) Trustee as of June 12, 2006.
(2) December 8, 2004 grant of Employee Stock Options. The options vest and become exercisable in three installments, one-third on the date of grant, one-third on the first anniversary of the date of grant and one-third on the second anniversary of the date of grant.
(3) December 8, 2005 grant of Employee Stock Options. The options vest and become exercisable in three installments, one-third on the date of grant, one-third on the first anniversary of the date of grant and one-third on the second anniversary of the date of grant.

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