Century Aluminum Company is a primary aluminum producer operating smelters in the United States, Iceland, and the Netherlands, along with a majority stake in a bauxite mining and alumina refining joint venture in Jamaica. The company generates revenue primarily from the electrolytic production and sale of primary aluminum, with additional income from alumina sales and carbon anode production; aluminum is sold to customers at prices linked to the London Metal Exchange plus regional premiums, while alumina is priced according to published market indices. A concentrated customer base—particularly Glencore plc, which owns a significant stake in the company—purchases the vast majority of Century's output, with the business exposed to commodity price fluctuations, power costs, and foreign exchange movements in its multiple operating jurisdictions.