Century Aluminum Company
Century Aluminum Company (CENX)
Overview
Century Aluminum Company is a Chicago, Illinois-headquartered primary aluminum producer, founded in 1995 and public since March 1996, with approximately 2,906 employees. The company had a strong run through 2025 and into 2026: trailing-twelve-month revenue reached about $2.67 billion (up 9.7%), net income surged to $603 million (up more than 500% year over year), and the market capitalization climbed to roughly $3.87 billion (up 57%). Century achieved full operational capacity across all of its assets in the second quarter of 2026, generating $752 million in quarterly sales and $327 million of adjusted EBITDA, a performance management attributed to robust aluminum market demand and new U.S. policy incentives supporting domestic aluminum production. Shares outstanding total about 99 million.
What They Do & How They Make Money
Century Aluminum produces primary (unwrought) aluminum through smelting — an energy-intensive electrolytic process that converts alumina into molten aluminum — and sells both standard-grade ingot/billet and higher-margin, value-added aluminum products to customers in automotive, construction, packaging, and industrial end markets. The company is partially vertically integrated: it owns bauxite mining and alumina refining operations in Jamaica (bauxite is refined into alumina, the direct feedstock for smelting) and a carbon anode production facility in the Netherlands (anodes are consumed in the smelting process), reducing its reliance on third-party suppliers for key inputs. Profitability is driven primarily by the spread between global aluminum prices (set on exchanges like the LME) and Century's all-in production costs, which are dominated by electricity — smelters run continuously and consume enormous amounts of power, making access to low-cost, reliable electricity the single biggest determinant of a smelter's competitiveness. Recent U.S. trade policy supporting domestic aluminum production (tariff protection against imports) has been a meaningful tailwind, helping Century's U.S. smelters operate at full capacity and capture wider margins.
Competitive Landscape
Century Aluminum competes in a global commodity market against much larger integrated producers such as Alcoa, Rio Tinto's aluminum operations, Norsk Hydro, and various Chinese and Middle Eastern state-linked or heavily subsidized smelters that often benefit from cheaper power. Because aluminum is a globally traded commodity, Century competes primarily on production cost (chiefly electricity cost and operational efficiency) and, in the current environment, benefits from U.S. trade policy that raises the effective cost of competing imports, giving domestic producers like Century a relative advantage in the U.S. market specifically.
Competitive Position
Century's partial vertical integration into bauxite mining, alumina refining, and anode production gives it more control over input costs and supply reliability than a smelter-only competitor, a real if moderate cost advantage. Its most significant current advantage, however, is external: U.S. policy support for domestic aluminum production has materially improved the economics of operating U.S. smelters, a tailwind that boosted 2025-2026 results dramatically but is inherently subject to political and trade-policy risk rather than being a durable, company-specific moat. Aluminum remains a fundamentally undifferentiated commodity, so Century's long-term profitability will continue to track global aluminum prices, energy costs, and the durability of trade protections, rather than any pricing power or brand advantage. The company's path forward depends on sustaining full-capacity operations, continuing to benefit from favorable U.S. policy, and managing energy costs as its primary lever for margin, since it cannot meaningfully differentiate its product from other producers' aluminum.