Company: CENX
Filing Date: 2025-03-03
Form Type: 10-K
Source: 0000949157-25-000024
Chunk: 66

Company: CENTURY ALUMINUM CO
Filing Date: 2025-03-03
Form: 10-K
Item: Item 2
Chunk 66
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eters SampledAnalysesSML 1301524,54224,24415,890SML 1691729,72757,09537,464

Internal Controls

We have internal controls and procedures designed for quality assurance and quality control on the Company’s production activities and associated information for the estimation of mineral resources and reserves. These internal controls include surveying of drillhole collar location, drill sampling, collection and security, database verification and security and quality assurance and quality control programs. Internal controls used by the Company are informed by internal reviews and by reviews, audits, and studies performed by third-party mining consultants. We recognize the risks inherent in exploration, such as the geological complexity, interpretation and extrapolation of data, changes in operations, ongoing mine planning, or permitting requirements, macroeconomic conditions and new data, among others. See Item 1A. Risk Factors of this Form 10-K for more information on risks.