i-80 Gold Surges on Positive Feasibility Study for Granite Creek Project
i-80 Gold Corp.'s (TSX:IAU) stock price surged 4.12% on September 22, 2026, following the release of a positive feasibility study for its Granite Creek Underground project in Nevada.
The study outlines an after-tax net present value (NPV) of US$118 million at US$2,750/oz gold and increases to US$598 million at US$4,500/oz gold. The initial proven and probable mineral reserve is approximately 556,500 ounces of gold at a grade of 7.87 g/t.
The project is expected to produce around 75,100 ounces of gold annually from 2028 to 2032, with an estimated 8.5-year mine life. The feasibility study provides a clearer view of the project's potential economic contribution and sensitivity to gold prices.