---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-397273"
form_type: "8-K"
ticker: "IAUX"
cik: "0001853962"
company_name: "i-80 Gold Corp."
filed_at: "2026-09-22T12:14:45+00:00"
generated_at: "2026-09-22T12:20:23.003156+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# i-80 Gold: Granite Creek FS shows NPV $118M, reserves 556.5K oz Au

## Summary
- Initial proven & probable reserves: 2.20 Mt at 7.87 g/t Au for 556,500 oz Au at Granite Creek Underground.
- After-tax NPV(5%) of $118M at $2,750/oz base case; rises to $598M at $4,500/oz and $985M at $6,000/oz.
- Measured & indicated resources up 229% to 3.73 Mt at 7.17 g/t Au (859,500 oz); mine life ~8.5 yrs.
- Steady-state production ~75,000 oz/yr (2028-2032); AISC $1,915/oz (excl. Lone Tree refurbishment capital).
- Mineral Point step-out hole: 1.33 g/t Au and 39.2 g/t Ag over 225.6 meters.

## SEC filing metadata
- accession: 0001193125-26-397273
- form_type: 8-K
- ticker: IAUX
- cik: 0001853962
- company_name: i-80 Gold Corp.
- filed_at: 2026-09-22T12:14:45+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/1853962/000119312526397273/0001193125-26-397273-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1853962/000119312526397273/d152188d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-397273
- JSON: https://secwatch.observer/filing/0001193125-26-397273.json
- Plain text: https://secwatch.observer/filing/0001193125-26-397273.txt

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