Company: CENX
Filing Date: 2025-03-03
Form Type: 10-K
Source: 0000949157-25-000024
Chunk: 59

Company: CENTURY ALUMINUM CO
Filing Date: 2025-03-03
Form: 10-K
Item: Item 2
Chunk 59
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Item 2. Properties

Our principal executive office is located at 1 South Wacker Drive, Suite 1000, Chicago, Illinois 60606. We own and operate aluminum smelters in the United States and Iceland. We also own a carbon anode production facility located in the Netherlands and hold a 55% interest in a bauxite mining and alumina refining facility in Jamaica. We lease certain of our facilities under long-term operating leases, however, we do not believe that this fact materially affects the continued use of these properties. We believe all of our facilities are suitable and adequate for our current operations. Our significant properties are listed below. Additional information about the location and productive capacity of our facilities is available in the "Overview" section of Item 1. Business.

FacilityOwnership Hawesville100% OwnedSebree100% OwnedMt. Holly100% OwnedGrundartangiFacility 100% owned; long-term ground lease VlissingenFacility 100% owned; long-term ground lease Jamalco55% Joint venture interest; long-term ground leaseChicago Corporate OfficeLong-term office lease

Bauxite Mining Properties

Century has access to large bauxite deposit areas with mining rights that extend in many cases more than 12 years from the date of this Form 10-K. The Company obtains bauxite from its own resources in Jamaica. Tonnes of bauxite are reported on a zero-moisture basis in millions of dry metric tonnes (mdmt) unless otherwise stated.

As used in this Form 10-K, the terms “mineral resource,” “measured mineral resource,” “indicated mineral resource,” “inferred mineral resource” and “mineral reserve” are defined and used in accordance with subpart 1300 of Regulation S-K. Under subpart 1300 of Regulation S-K, mineral resources may not be classified as “mineral reserves” unless the determination has been made by a qualified person (as defined under subpart 1300 of Regulation S-K) that the mineral resources can be the basis of an economically viable project. The approach to mining at Jamalco is such that in the qualified person's opinion, the documented mineral reserves are too small to merit reporting and as such, mineral reserves are not included in the discussion below. Refer to “Property History and Condition” below for more information on why reportable reserves are not available.

Part or all of the mineral deposits (including any mineral resources) in these categories may never be converted into