---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-22-025337"
form_type: "8-K"
ticker: "BHLL"
cik: "0001407583"
company_name: "Bunker Hill Mining Corp."
filed_at: "2022-09-08T23:59:59+00:00"
generated_at: "2026-06-23T12:42:13.912507+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Bunker Hill PFS outlines $55M capex for mine restart, 36% IRR, >$25M annual FCF

## Summary
- PFS for Phase 1 restart of Bunker Hill Mine: initial capex $54.85M, 16 months to commercial production.
- After-tax NPV8 of $51.8M, IRR 36%, payback 2.1 years; avg annual FCF >$25M and EBITDA >$41M.
- Five-year plan: 3.36M tonnes ore, producing 317M lbs Zn, 146M lbs Pb, 3M oz Ag.
- AISC $0.77 per payable lb Zn net of by-products; mill throughput 1,800 tpd.
- Webcast Sep 8 to discuss PFS; Phase 2 includes resource conversion and expansion opportunities.

## SEC filing metadata
- accession: 0001493152-22-025337
- form_type: 8-K
- ticker: BHLL
- cik: 0001407583
- company_name: Bunker Hill Mining Corp.
- filed_at: 2022-09-08T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1407583/000149315222025337/0001493152-22-025337-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1407583/000149315222025337/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-22-025337
- JSON: https://secwatch.observer/filing/0001493152-22-025337.json
- Plain text: https://secwatch.observer/filing/0001493152-22-025337.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.