{"schema_version":"secwatch.filing_event.v1","accession":"0000949157-23-000032","form_type":"8-K","ticker":"CENX","cik":"0000949157","company_name":"CENTURY ALUMINUM CO","filed_at":"2023-05-08T23:59:59+00:00","discovered_at":"2026-05-14T18:03:42.970505+00:00","generated_at":"2026-06-15T15:31:38.062734+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Century Aluminum narrows Q1 net loss to $38.6M; EBITDA turns positive at $24.1M","bullets":["Q1 net loss of $38.6M, improved from Q4 loss of $113.5M; diluted loss per share $0.42 vs $1.24.","Adjusted EBITDA of $24.1M versus -$12.4M in Q4; adjusted loss per share $0.11 (improved from $0.31).","Shipments 181,165 tonnes (+7% QoQ); net sales $552.4M, up 4% from Q4.","Realized LME aluminum price $2,350/T (+$42/T); Kentucky energy costs fell 47% to $30/MWh.","Acquired 55% interest in Jamalco bauxite/alumina operation; total liquidity $241.0M as of March 31."],"urls":{"canonical":"https://secwatch.observer/filing/0000949157-23-000032","json":"https://secwatch.observer/filing/0000949157-23-000032.json","markdown":"https://secwatch.observer/filing/0000949157-23-000032.md","text":"https://secwatch.observer/filing/0000949157-23-000032.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/949157/000094915723000032/0000949157-23-000032-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/949157/000094915723000032/cenx-20230508.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-15T15:31:38.062734+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":[{"claim_id":"b48f4fc131528df6c258b72eadb7744ae527d02f","claim":"CENTURY ALUMINUM CO reported financial results for quarter ended March 31, 2023.","evidence_excerpt":"On May 8, 2023 , Century Aluminum Company (the \"Company\") issued a press release announcing its results of operations for quarter ended March 31, 2023.","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949157/000094915723000032/0000949157-23-000032-index.htm","confidence":0.9,"family_label":"Earnings Releases","details":[{"label":"Period","value":"quarter ended March 31, 2023"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}