secwatch.observer — SEC 8-K summary
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Issuer:     Bunker Hill Mining Corp. (BHLL)
CIK:        0001407583
Form:       8-K
Filed at:   2021-09-24T23:59:59+00:00
Accession:  0001493152-21-023603
Event type: other_material
Sentiment:  positive
Materiality: 0.65
Item codes: 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Bunker Hill PEA shows 42% NPV increase to $143M; AISC down 29% to $0.47/lb
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- After-tax NPV (5%) of $143M vs. $101M in June PEA; IRR 35.2% with 2.6-year payback.
- All-in sustaining cost (AISC) falls 29% to $0.47 per payable lb of zinc; cash costs down 33%.
- Average annual free cash flow of $25.2M over extended 11-year mine life; 41% increase in total FCF.
- Initial capital cost of $44M (incl. 20% contingency) for 18-month restart; total production of 990M zinc-equivalent lbs.
- Metal price assumptions unchanged from April PEA ($1.15/lb Zn, $0.90/lb Pb, $20/oz Ag).

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1407583/000149315221023603/0001493152-21-023603-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1407583/000149315221023603/form8-k.htm
  HTML page:      https://secwatch.observer/filing/0001493152-21-023603

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