{"schema_version":"secwatch.filing_event.v1","accession":"0001710366-26-000002","form_type":"8-K","ticker":"CNR","cik":"0001710366","company_name":"Core Natural Resources, Inc.","filed_at":"2026-01-12T23:59:59+00:00","discovered_at":"2026-05-14T18:02:35.968307+00:00","generated_at":"2026-05-16T10:54:06.382587+00:00","sec_items":["1.04"],"event_type":"regulatory","sentiment":"negative","materiality_score":0.4,"confidence":"high","headline":"Core Natural Resources subsidiary receives imminent danger order at Mountaineer II mine due to elevated methane","bullets":["Mingo Logan Coal LLC received a 107(a) order on January 8, 2026 at the Mountaineer II mine in Logan County, West Virginia.","An inspector found elevated methane levels in an isolated section; mine personnel restored acceptable levels promptly.","The Mine Safety and Health Administration terminated the order, and no injuries or illnesses resulted.","Core Natural Resources, Inc. (NYSE: CNR) is the parent company of Mingo Logan Coal LLC."],"urls":{"canonical":"https://secwatch.observer/filing/0001710366-26-000002","json":"https://secwatch.observer/filing/0001710366-26-000002.json","markdown":"https://secwatch.observer/filing/0001710366-26-000002.md","text":"https://secwatch.observer/filing/0001710366-26-000002.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1710366/000171036626000002/0001710366-26-000002-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1710366/000171036626000002/cnr-20260108.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud","generated_at":"2026-05-16T10:54:06.382587+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"}