{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-223652","form_type":"8-K","ticker":"AA","cik":"0001675149","company_name":"Alcoa Corp","filed_at":"2025-09-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:44.613431+00:00","generated_at":"2026-05-17T05:16:13.741689+00:00","sec_items":["2.05","2.06"],"event_type":"other_material","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Alcoa permanently closes Kwinana alumina refinery; records ~$890M charges","bullets":["Total restructuring charges of ~$890M ($623M after-tax, $2.41/share) in Q3 2025.","Charges include $425M for asset retirement/environmental remediation and $265M of asset impairments.","Total cash outlays expected ~$600M over six years; ~$75M in Q4 2025 (restructuring $45M, retirement $30M).","Refinery has 2.2M metric ton nameplate capacity; fully curtailed since June 2024; ~220 employees affected.","Demolition and remediation to begin in 2026, continuing over next six years."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-223652","json":"https://secwatch.observer/filing/0001193125-25-223652.json","markdown":"https://secwatch.observer/filing/0001193125-25-223652.md","text":"https://secwatch.observer/filing/0001193125-25-223652.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1675149/000119312525223652/0001193125-25-223652-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1675149/000119312525223652/aa-20250929.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T05:16:13.741689+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":"b204aea0c369f010687ac3f643503ef7033f9c49","claim":"Alcoa Corp announced a restructuring with charges of approximately $890 million ($623 million (after-tax), or $2.41 per share) affecting Kwinana alumina refinery located in Western Australia (approximately 220 employees).","evidence_excerpt":"In the third quarter of 2025, the Company will record total restructuring and related charges of approximately $890 million ($623 million (after-tax), or $2.41 per share) related to the permanent closure of the Refinery, including approximately $375 million of non-cash impairment charges.","evidence_source":"SEC 8-K Item 2.05/2.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1675149/000119312525223652/0001193125-25-223652-index.htm","confidence":0.9,"family_label":"Restructurings & Charges","details":[{"label":"Type","value":"restructuring"},{"label":"Charge","value":"approximately $890 million ($623 million (after-tax), or $2.41 per share)"},{"label":"Affected area","value":"Kwinana alumina refinery located in Western Australia"},{"label":"Headcount","value":"approximately 220 employees"}],"fact_type":"restructuring_charge"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}