On the Record · Century Aluminum
Century Aluminum subsidiaries, as it lists them
The subsidiaries Century Aluminum lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| Century Aluminum of South Carolina, Inc. | Delaware |
| Century Aluminum Sebree LLC | Delaware |
| Century Marketer LLC | Delaware |
| Century California LLC | Delaware |
| Century Kentucky, Inc. | Delaware |
| Century Netherlands I Limited | Bermuda |
| Century Aluminum Holdings, LLC | Delaware |
| Skyliner, LLC | Delaware |
| NSA General Partnership | Kentucky |
| NSA GP Century Aluminum of Kentucky General Partnership | Kentucky |
| Century Aluminum of Kentucky, GP | — |
| Hancock Aluminum LLC | Delaware |
| Century Aluminum of Kentucky LLC | Delaware |
| Century Netherlands II Limited | Bermuda |
| Nordural Holdings C.V. | Netherlands |
| Nordural U.S. LLC | Delaware |
| Norðurál ehf. | Iceland |
| Century Louisiana, Inc. | Delaware |
| Century Aluminum Development LLC | Delaware |
| Century Aluminium Congo, S.A. | Republic of Congo |
| Norðurál Grundartangi ehf. | Iceland |
| Century Aluminum Vlissingen B.V. | Netherlands |
| Mt. Holly Commerce Park, LLC | South Carolina |
| Century Aluminum of West Virginia, Inc. | Delaware |
| Metalsco, LLC | Georgia |
| Virgin Islands Alumina Corporation LLC | Delaware |
| Century Aluminum Jamaica Holdings, Inc. | Delaware |
| Century Aluminum Trading Company | Delaware |
| General Alumina Holdings Limited | United Kingdom |
| General Alumina Jamaica Inc. | Delaware |
| General Alumina Jamaica Limited | St. Lucia |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Century Aluminum’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-03-03. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.