EX-24.1 6 a20241231q4ex241.htm EX-24.1
EXHIBIT 24.1
POWER OF ATTORNEY
I hereby constitute and appoint John DeZee and Paul Sharobeem as my true and lawful attorney-in-fact and agent, 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, 2024, 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 9th day of December 2024.

/s/ Andrew Michelmore
Name: Andrew Michelmore
Director
Century Aluminum Company

POWER OF ATTORNEY
I hereby constitute and appoint John DeZee and Paul Sharobeem as my true and lawful attorney-in-fact and agent, 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, 2024, 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 9th day of December 2024.

/s/ Jarl Berntzen
Name: Jarl Berntzen
Director
Century Aluminum Company

POWER OF ATTORNEY
I hereby constitute and appoint John DeZee and Paul Sharobeem as my true and lawful attorney-in-fact and agent, 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, 2024, 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 9th day of December 2024.

/s/ Jennifer Bush
Name: Jennifer Bush
Director
Century Aluminum Company

POWER OF ATTORNEY
I hereby constitute and appoint John DeZee and Paul Sharobeem as my true and lawful attorney-in-fact and agent, 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, 2024, 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 9th day of December 2024.

/s/ Errol Glasser
Name: Errol Glasser
Director
Century Aluminum Company

POWER OF ATTORNEY
I hereby constitute and appoint John DeZee and Paul Sharobeem as my true and lawful attorney-in-fact and agent, 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, 2024, 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 9th day of December 2024.

/s/ Wilhelm van Jaarsveld
Name: Wilhelm van Jaarsveld
Director
Century Aluminum Company

POWER OF ATTORNEY
I hereby constitute and appoint John DeZee and Paul Sharobeem as my true and lawful attorney-in-fact and agent, 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, 2024, 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 9th day of December 2024.

/s/ Tamla Olivier
Name: Tamla Olivier
Director
Century Aluminum Company