Century Aluminum Company 2026 Annual Meeting of Stockholders

Century Aluminum Company held its 2026 Annual Meeting of Stockholders on June 15, 2026. A quorum was established with 86.39% of outstanding shares present or represented by proxy. The stockholders elected seven directors: Jarl Berntzen, Jennifer Bush, Jesse Gary, Errol Glasser, Wilhelm van Jaarsveld, Andrew Michelmore, and Tamla Olivier, all to serve until the 2027 annual meeting. The appointment of Deloitte & Touche LLP as the independent registered public accounting firm for the year ending December 31, 2026, was ratified. Additionally, a non-binding advisory vote approved the compensation of the Company's named executive officers. The filing also includes the Cover Page Interactive Data File as an exhibit.