{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-25-005490","form_type":"8-K","ticker":"USGO","cik":"0001947244","company_name":"U.S. GoldMining Inc.","filed_at":"2025-02-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.626614+00:00","generated_at":"2026-05-27T00:28:20.611521+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"U.S. GoldMining discovers new high-grade gold-silver polymetallic zone at Raintree Deposit","bullets":["Hole WH24-05 intersected 138.0 m at 0.99 g/t AuEq (0.89 g/t Au, 0.05% Cu) plus Ag-Pb-Zn, from 635 m depth.","Higher-grade vein zones include 18 m at 1.93 g/t AuEq (1.70 g/t Au) and 66.33 g/t Ag, plus 0.62% Pb, 1.84% Zn.","New discovery lies 500 m south of the existing Raintree Deposit; style is polymetallic vein, contrasting with porphyry mineralization.","Only 5,190 m of historic drilling at Raintree Prospect; follow-up drilling planned for summer 2025.","Company states discovery validates exploration strategy and may provide additional metal resources to the Project."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-25-005490","json":"https://secwatch.observer/filing/0001493152-25-005490.json","markdown":"https://secwatch.observer/filing/0001493152-25-005490.md","text":"https://secwatch.observer/filing/0001493152-25-005490.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1947244/000149315225005490/0001493152-25-005490-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1947244/000149315225005490/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T00:28:20.611521+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"}