Document

We consent to the incorporation by reference in Registration Statement No. 333-270681 on Form S-3 and Registration Nos. 333-162622, 333-162624, 333-07239, 333-129699, 333-28827 and 333-233184 on Form S-8, of our reports dated March 15, 2024, relating to the financial statements of Century Aluminum Company, and the effectiveness of Century Aluminum Company’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Century Aluminum Company for the year ended December 31, 2023.