FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * GLENCORE INVESTMENT PTY LTD.   2. Issuer Name and Ticker or Trading Symbol CENTURY ALUMINUM CO [CENX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) LEVEL 4, 30 THE ESPLANADE 3. Date of Earliest Transaction (Month/Day/Year) 07/16/2008 (Street) PERTH, C3 6000 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 07/16/2008   P   1,852,500 (1) A $ 62.25 13,558,807 D (2)   Common Stock 07/16/2008   C   419,986 A (3) 13,978,793 D (2)   Common Stock 07/17/2008   P   793,500 A $ 57.88 14,772,293 D (2)   Common Stock 07/18/2008   P   23,000 A $ 54.94 14,795,293 D (2)   Common Stock               1,047 I (4) By Nominee (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Series A Convertible Preferred Stock

(5)

07/16/2008

C

4,199.86

(5)

(5)

Common Stock

419,986

(5)

155,800.14

D (2)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
GLENCORE INVESTMENT PTY LTD. LEVEL 4, 30 THE ESPLANADE PERTH, C3 6000		X
GLENCORE INTERNATIONAL AG BAARERMATTSTRASSE 3 BAAR, V8 CH-6341		X
GLENCORE HOLDING AG BAARERMATTSTRASSE 3 BAAR, V8 CH-6341		X

Signatures

/s/ Valarie A. Hing as Attorney-in-Fact		07/18/2008
**Signature of Reporting Person		Date
/s/ Valarie A. Hing as Attorney-in-Fact		07/18/2008
**Signature of Reporting Person		Date
Valarie A. Hing as Attorney-in-Fact		07/18/2008
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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)	Represents shares of common stock purchased by Glencore Investment Pty Ltd. in the registered public offering of the issuer's common stock, which closed on July 16, 2008, at the public offering price of $62.25 per share
(2)	The shares of common stock reported in Table I and Series A convertible preferred stock reported in Table II are held directly by Glencore Investment Pty Ltd., a wholly-owned subsidiary of Glencore Investment AG, and indirectly by (i) Glencore International AG, the controlling shareholder of Glencore Investment AG, and (ii) Glencore Holding AG, the controlling shareholder of Glencore International AG.
(3)	Represents shares of common stock acquired upon conversion of 4,199.86 shares of Series A convertible preferred stock. Each share of Series A convertible preferred stock is convertible into 100 shares of common stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock.
(4)	Represents 1,047 shares of restricted common stock issued on June 25, 2008 to Mr. Willy R. Strothotte, a director of the issuer, who holds such shares as nominee for Glencore Investment. Shares vest in full on the one year anniversary of the grant date, or if earlier, upon Mr. Strothotte's termination of service as a member of the issuer's board of directors due to death or disability.
(5)	Each share of Series A Convertible Preferred Stock is convertible into 100 shares of the Issuer's common stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.