{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-22-117496","form_type":"8-K","ticker":"PPTA","cik":"0001526243","company_name":"PERPETUA RESOURCES CORP.","filed_at":"2022-11-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:50.982705+00:00","generated_at":"2026-06-21T20:02:39.971650+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Perpetua Resources receives USFS Preferred Alternative for Stibnite Gold Project; DoD funds antimony study","bullets":["USFS identified Perpetua's Modified Mine Plan as Preferred Alternative on Oct 28, 2022, a major NEPA milestone.","Awarded Department of Defense funding to study production of military-grade antimony trisulfide from Stibnite.","Clean Water Act stay with Nez Perce Tribe extended through Jan 31, 2023; productive mediation ongoing.","Completed summer field program including stream diversion and removal of legacy waste rock dump."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-22-117496","json":"https://secwatch.observer/filing/0001104659-22-117496.json","markdown":"https://secwatch.observer/filing/0001104659-22-117496.md","text":"https://secwatch.observer/filing/0001104659-22-117496.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1526243/000110465922117496/0001104659-22-117496-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1526243/000110465922117496/tm2230391d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-21T20:02:39.971650+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"}