{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-101317","form_type":"8-K","ticker":"CENX","cik":"0000949157","company_name":"CENTURY ALUMINUM CO","filed_at":"2025-10-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.700392+00:00","generated_at":"2026-05-17T02:55:41.148723+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Century Aluminum halts one potline at Iceland smelter after equipment failure; production reduced ~2/3","bullets":["Electrical equipment failure at Grundartangi, Iceland smelter forced temporary stop of one of two potlines.","Production reduced by approximately two-thirds; other potline remains unaffected and in full production.","No injuries reported; company assessing replacement equipment timeline and impact.","Century expects losses will be covered by property and business interruption insurance policies.","Update to be provided on November 6 quarterly earnings conference call."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-101317","json":"https://secwatch.observer/filing/0001104659-25-101317.json","markdown":"https://secwatch.observer/filing/0001104659-25-101317.md","text":"https://secwatch.observer/filing/0001104659-25-101317.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/949157/000110465925101317/0001104659-25-101317-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/949157/000110465925101317/tm2529215d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T02:55:41.148723+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}