---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-093671"
form_type: "8-K"
ticker: "PPTA"
cik: "0001526243"
company_name: "PERPETUA RESOURCES CORP."
filed_at: "2023-08-21T23:59:59+00:00"
generated_at: "2026-06-11T06:09:40.761044+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Perpetua awarded up to $15.5M DoD OTIA for domestic antimony trisulfide supply chain

## Summary
- Perpetua Resources subsidiary awarded up to $15.5 million Ordnance Technology Initiative Agreement from DoD.
- Funding to demonstrate full domestic antimony trisulfide supply chain using Stibnite Gold Project ore for munitions.
- Activities include core sampling, pilot plant study for mil-spec antimony trisulfide, and modular pilot plant delivery.
- Reimbursement on cost-plus fixed fee basis over 24 months; amount subject to DoD adjustment based on scope.
- OTIA supports Perpetua's goal of domestic critical mineral production; company entitled to reimbursement for all costs.

## SEC filing metadata
- accession: 0001104659-23-093671
- form_type: 8-K
- ticker: PPTA
- cik: 0001526243
- company_name: PERPETUA RESOURCES CORP.
- filed_at: 2023-08-21T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1526243/000110465923093671/0001104659-23-093671-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1526243/000110465923093671/tm2324218d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-093671
- JSON: https://secwatch.observer/filing/0001104659-23-093671.json
- Plain text: https://secwatch.observer/filing/0001104659-23-093671.txt

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