CENTURY ALUMINUM CO

Century Aluminum Company is a global producer of primary aluminum, operating aluminum reduction facilities, known as smelters, in the United States and Iceland. The company produces standard-grade and value-added primary aluminum products. As of December 31, 2025, its annual production capacity was approximately 770,000 tonnes per year, and it produced approximately 638,000 tonnes of primary aluminum in 2025. In addition to its primary aluminum assets, Century Aluminum Company holds a 55% joint venture interest in the Jamalco bauxite mining operation and alumina refinery in Jamaica. The remaining 45% interest in Jamalco is indirectly owned by the Government of Jamaica. Century's share of Jamalco's production capacity is approximately 770,000 tonnes per year. The company also owns a carbon anode production facility in the Netherlands, named Vlissingen, which supplies carbon anodes to its aluminum smelter in Grundartangi, Iceland. Each of the company's aluminum smelters in the United States produces anodes at on-site facilities. Century Aluminum Company has invested capital to increase production and expand its product portfolio to include more value-added aluminum products for customers in the U.S. and Europe.