secwatch.observer — SEC 8-K summary
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Issuer:     PERPETUA RESOURCES CORP. (PPTA)
CIK:        0001526243
Form:       8-K
Filed at:   2025-10-21T23:59:59+00:00
Accession:  0001104659-25-101285
Event type: other_material
Sentiment:  positive
Materiality: 0.85
Item codes: 2.03, 8.01
LLM model:  deepseek-v4-flash:cloud@v2

Perpetua Resources starts construction on Stibnite Gold Project after posting $139M surety bond
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- 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.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1526243/000110465925101285/0001104659-25-101285-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1526243/000110465925101285/tm2529203d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-25-101285

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