secwatch.observer — SEC 8-K summary ====================================== Issuer: i-80 Gold Corp. (IAUX) CIK: 0001853962 Form: 8-K Filed at: 2026-09-22T12:14:45+00:00 Accession: 0001193125-26-397273 Event type: other_material Sentiment: positive Materiality: 0.75 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 i-80 Gold: Granite Creek FS shows NPV $118M, reserves 556.5K oz Au ------------------------------------------------------------------ - 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. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1853962/000119312526397273/0001193125-26-397273-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1853962/000119312526397273/d152188d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-397273 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer