POWER OF ATTORNEY

I hereby constitute and appoint Robert R. Nielsen and William J. Leatherberry, and each of them separately, as my true and lawful attorneys-in-fact and agents, with full power of substitution, for me and in my name, in any and all capacities, to sign on my behalf the Annual Report on Form 10-K of Century Aluminum Company for the fiscal year ended December 31, 2007, and any amendment or supplement thereto; and to file such Annual Report on Form 10-K, and any such amendment or supplement, with the Securities and Exchange Commission and any other appropriate agency pursuant to applicable laws and regulations.

IN WITNESS WHEREOF, I have hereunto set my hand this 28th day of February 2008.

/s/ Jarl Berntzen

Name:  Jarl Berntzen

Director

Century Aluminum Company

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POWER OF ATTORNEY

I hereby constitute and appoint Robert R. Nielsen and William J. Leatherberry, and each of them separately, as my true and lawful attorneys-in-fact and agents, with full power of substitution, for me and in my name, in any and all capacities, to sign on my behalf the Annual Report on Form 10-K of Century Aluminum Company for the fiscal year ended December 31, 2007, and any amendment or supplement thereto; and to file such Annual Report on Form 10-K, and any such amendment or supplement, with the Securities and Exchange Commission and any other appropriate agency pursuant to applicable laws and regulations.

IN WITNESS WHEREOF, I have hereunto set my hand this 26th day of February 2008.

/s/ Robert E. Fishman, Ph.D.

Name:  Robert E. Fishman, Ph.D.

Director

Century Aluminum Company

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POWER OF ATTORNEY

I hereby constitute and appoint Robert R. Nielsen and William J. Leatherberry, and each of them separately, as my true and lawful attorneys-in-fact and agents, with full power of substitution, for me and in my name, in any and all capacities, to sign on my behalf the Annual Report on Form 10-K of Century Aluminum Company for the fiscal year ended December 31, 2007, and any amendment or supplement thereto; and to file such Annual Report on Form 10-K, and any such amendment or supplement, with the Securities and Exchange Commission and any other appropriate agency pursuant to applicable laws and regulations.

IN WITNESS WHEREOF, I have hereunto set my hand this 27th day of February 2008.

/s/ John C. Fontaine

Name:  John C. Fontaine

Director

Century Aluminum Company

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POWER OF ATTORNEY

I hereby constitute and appoint Robert R. Nielsen and William J. Leatherberry, and each of them separately, as my true and lawful attorneys-in-fact and agents, with full power of substitution, for me and in my name, in any and all capacities, to sign on my behalf the Annual Report on Form 10-K of Century Aluminum Company for the fiscal year ended December 31, 2007, and any amendment or supplement thereto; and to file such Annual Report on Form 10-K, and any such amendment or supplement, with the Securities and Exchange Commission and any other appropriate agency pursuant to applicable laws and regulations.

IN WITNESS WHEREOF, I have hereunto set my hand this 25th day of February 2008.

/s/ Peter C. Jones

Name:  Peter C. Jones

Director

Century Aluminum Company

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POWER OF ATTORNEY

I hereby constitute and appoint Robert R. Nielsen and William J. Leatherberry, and each of them separately, as my true and lawful attorneys-in-fact and agents, with full power of substitution, for me and in my name, in any and all capacities, to sign on my behalf the Annual Report on Form 10-K of Century Aluminum Company for the fiscal year ended December 31, 2007, and any amendment or supplement thereto; and to file such Annual Report on Form 10-K, and any such amendment or supplement, with the Securities and Exchange Commission and any other appropriate agency pursuant to applicable laws and regulations.

IN WITNESS WHEREOF, I have hereunto set my hand this 27th day of February 2008.

/s/ John P. O’Brien

Name:  John P. O’Brien

Director

Century Aluminum Company

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POWER OF ATTORNEY

I hereby constitute and appoint Robert R. Nielsen and William J. Leatherberry, and each of them separately, as my true and lawful attorneys-in-fact and agents, with full power of substitution, for me and in my name, in any and all capacities, to sign on my behalf the Annual Report on Form 10-K of Century Aluminum Company for the fiscal year ended December 31, 2007, and any amendment or supplement thereto; and to file such Annual Report on Form 10-K, and any such amendment or supplement, with the Securities and Exchange Commission and any other appropriate agency pursuant to applicable laws and regulations.

IN WITNESS WHEREOF, I have hereunto set my hand this 26th day of February 2008.

/s/ Willy R. Strothotte

Name:  Willy R. Strothotte

Director

Century Aluminum Company

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POWER OF ATTORNEY

I hereby constitute and appoint Robert R. Nielsen and William J. Leatherberry, and each of them separately, as my true and lawful attorneys-in-fact and agents, with full power of substitution, for me and in my name, in any and all capacities, to sign on my behalf the Annual Report on Form 10-K of Century Aluminum Company for the fiscal year ended December 31, 2007, and any amendment or supplement thereto; and to file such Annual Report on Form 10-K, and any such amendment or supplement, with the Securities and Exchange Commission and any other appropriate agency pursuant to applicable laws and regulations.

IN WITNESS WHEREOF, I have hereunto set my hand this 25th day of February 2008.

/s/ Jack E. Thompson

Name:  Jack E. Thompson

Director

Century Aluminum Company

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