{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-21-027496","form_type":"8-K","ticker":"BHLL","cik":"0001407583","company_name":"Bunker Hill Mining Corp.","filed_at":"2021-11-08T23:59:59+00:00","discovered_at":"2026-05-14T18:04:12.408978+00:00","generated_at":"2026-06-28T11:22:26.941856+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Bunker Hill reports updated PEA with $143M NPV, 35% IRR; aims for construction decision by Q1 2022","bullets":["Updated PEA shows $143M NPV (42% increase), 35% IRR, 2.6-year payback, $25M annual FCF at $1.15/lb Zn, $0.90/lb Pb, $20/oz Ag.","Company advancing engineering studies to support a construction decision by end of Q1 2022.","MineTech leading mine design; Golder for geotechnical assessments; metallurgical test work results expected Q1 2022.","Commercial discussions for process plant acquisition expected to conclude by end of 2021.","Water treatment system engineering to reach 60% completion in November 2021."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-21-027496","json":"https://secwatch.observer/filing/0001493152-21-027496.json","markdown":"https://secwatch.observer/filing/0001493152-21-027496.md","text":"https://secwatch.observer/filing/0001493152-21-027496.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1407583/000149315221027496/0001493152-21-027496-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1407583/000149315221027496/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T11:22:26.941856+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"}