---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-012406"
form_type: "8-K"
ticker: "BHLL"
cik: "0001407583"
company_name: "Bunker Hill Mining Corp."
filed_at: "2025-05-27T23:59:59+00:00"
generated_at: "2026-05-20T10:24:48.673454+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Bunker Hill increases Teck promissory note to $4.4M at 12% interest for liquidity

## Summary
- Promissory note from Teck Resources increased to $4.4M max principal from $3.4M.
- Note bears 12% interest, capitalized monthly; payable on demand in cash.
- Funds to ensure liquidity until brokered and non-brokered private placements close.
- No bonus securities or conversion rights issued to Teck.
- Note available in multiple advances at Teck's discretion.

## SEC filing metadata
- accession: 0001641172-25-012406
- form_type: 8-K
- ticker: BHLL
- cik: 0001407583
- company_name: Bunker Hill Mining Corp.
- filed_at: 2025-05-27T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 2.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1407583/000164117225012406/0001641172-25-012406-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1407583/000164117225012406/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-012406
- JSON: https://secwatch.observer/filing/0001641172-25-012406.json
- Plain text: https://secwatch.observer/filing/0001641172-25-012406.txt

## Key facts
- Debt Financings
  Bunker Hill Mining Corp. amended loan of increased from $3.4 million to $4.4 million with Teck Resources Limited at 12% per annum maturing on demand.
  - Instrument: loan
  - Principal: increased from $3.4 million to $4.4 million
  - Counterparty: Teck Resources Limited
  - Rate: 12% per annum
  - Maturity: on demand
  - Event: amendment
  source text: On May 21, 2025, Bunker Hill Mining Corp., a Nevada corporation (the “ Company ”), and Teck Resources Limited (“ Teck ”) amended and restated the unsecured promissory note previously provided by Teck in order to increase the maximum aggregate principal amount thereunder from $3.4 million to $4.4 million (as amended and restated, the “ Note ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1407583/000164117225012406/0001641172-25-012406-index.htm

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