Century Aluminum Co (NASDAQ: CENX) is a primary aluminum production company that operates aluminum smelters in the United States and Iceland and an alumina refinery in Jamaica. Revenue is generated by selling primary aluminum products, priced with reference to London Metal Exchange (LME) benchmarks, plus premiums for value-added products such as billet and molten metal. The company also produces alumina at its Jamaican joint venture, Jamalco, approximately 31% of which was sold internally to its own smelters for the year ended December 31, 2025. U.S. smelting operations include Sebree in Robards, Kentucky, with annual capacity of approximately 220,000 tonnes, and Mt. Holly in Goose Creek, South Carolina, with annual capacity of approximately 230,000 tonnes. The Icelandic smelter, Grundartangi, experienced a partial production outage in October 2025 after an electrical equipment failure idled approximately two-thirds of its output. Alumina, electrical power, carbon products, and labor together represented over 84% of cost of goods sold for the year ended December 31, 2025. Jesse E. Gary serves as President and Chief Executive Officer.

Revenue model

Transactional sales of primary aluminum, priced at LME-linked rates plus product premiums for value-added forms such as billet and molten metal. A portion of alumina produced at Jamalco is sold externally under LME-linked, fixed, and API-linked pricing agreements with counterparties including Glencore (500,000 tonnes per year through December 2028) and Concord Resources Ltd. (approximately 540,000 tonnes per year through December 2029).

Products and services

Primary aluminum in standard-grade sow, billet, and molten metal forms. Alumina produced at Jamalco, with approximately 31% consumed internally by Century's smelters and the remainder sold externally (FY2025).

Customers and end markets

Customers include related parties and third-party buyers of primary aluminum and alumina. Molten metal is delivered directly to nearby customers. End markets are not individually specified in the excerpts.

Value-chain role

Vertically integrated from alumina refining (Jamalco, Jamaica) through primary aluminum smelting (Sebree, Kentucky; Mt. Holly, South Carolina; Grundartangi, Iceland). Alumina supply is supplemented by long-term third-party agreements. Electrical power is sourced under long-term contracts at Icelandic facilities from Landsvirkjun, Orkuveita Reykjavíkur, and HS Orka hf.

Geographic exposure

United States (Sebree, Kentucky; Mt. Holly, South Carolina), Iceland (Grundartangi), Jamaica (Jamalco alumina refinery).

Source: SEC 10-K, filed 2026-03-03

Industry: Primary Production of Aluminum Peers: Alcoa Corp Arconic Corp Kaiser Aluminum Corp