{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-101285","form_type":"8-K","ticker":"PPTA","cik":"0001526243","company_name":"PERPETUA RESOURCES CORP.","filed_at":"2025-10-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.632122+00:00","generated_at":"2026-05-17T03:01:09.846043+00:00","sec_items":["2.03","8.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.85,"confidence":"high","headline":"Perpetua Resources starts construction on Stibnite Gold Project after posting $139M surety bond","bullets":["Posted $139M surety bond with Endurance Assurance for construction-phase reclamation; annual premium 1.5% of penal sum.","Obtained $35M standby letter of credit from Bank of Nova Scotia, secured by $40.5M cash deposit, under a $39.5M credit facility.","Also posted $4.2M letter of credit with USACE for Clean Water Act Section 404 off-site mitigation.","Received USFS and IDL notices to proceed; early works construction began October 21, 2025.","Indemnity agreement requires minimum $200M in collateral/cash/marketable securities; contingent liability up to $139M plus costs."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-101285","json":"https://secwatch.observer/filing/0001104659-25-101285.json","markdown":"https://secwatch.observer/filing/0001104659-25-101285.md","text":"https://secwatch.observer/filing/0001104659-25-101285.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1526243/000110465925101285/0001104659-25-101285-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1526243/000110465925101285/tm2529203d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T03:01:09.846043+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"}