{"schema_version":"secwatch.filing_event.v1","accession":"0001157523-23-001824","form_type":"8-K","ticker":"AA","cik":"0001675149","company_name":"Alcoa Corp","filed_at":"2023-12-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:30.026325+00:00","generated_at":"2026-06-07T12:52:00.523026+00:00","sec_items":["8.01","9.01"],"event_type":"regulatory","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Alcoa receives WA govt approval for 2023-2027 bauxite mine plan; A$100M guarantee","bullets":["WA Government approves Alcoa's 2023-2027 Mining and Management Program for Huntly and Willowdale bauxite mines.","Exemption granted to continue mining if EPA decides to assess the MMP; EPA determination expected by year-end 2023.","Alcoa provides A$100 million (approx. US$66 million) guarantee to protect drinking water supplies.","Annual forest clearing capped at 800 hectares; rehabilitation rate to double to 1,000 hectares/year by 2027.","Alcoa commits to modernize approvals framework and transition new mine regions to EPA assessment process."],"urls":{"canonical":"https://secwatch.observer/filing/0001157523-23-001824","json":"https://secwatch.observer/filing/0001157523-23-001824.json","markdown":"https://secwatch.observer/filing/0001157523-23-001824.md","text":"https://secwatch.observer/filing/0001157523-23-001824.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1675149/000115752323001824/0001157523-23-001824-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1675149/000115752323001824/a53870790.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T12:52:00.523026+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"}