i-80 Gold issues positive feasibility study and initial mineral reserves for Granite Creek underground

TORONTO — i-80 Gold Corp. released the results of an independent feasibility study and its initial mineral reserves for the underground operations at its Granite Creek property on Sept. 21, 2026. According to the company's disclosure via PR Newswire, the study establishes an after-tax net present value discounted at 5% of $118 million at a gold price of $2,750 per ounce, which scales upward to $598 million should gold reach $4,500 per ounce.

The evaluation outlines the economics, production parameters, and reserve profile for the high-grade underground asset, providing operators and allocators with audited metrics for the Nevada-based mining project. All financial figures reported in the study are denominated in U.S. dollars.

Financial & Macro Implications

The economic model presented in the feasibility study details significant sensitivity to prevailing gold prices, a crucial metric for corporate finance teams evaluating asset valuation and debt-servicing capacity. At a base metal price of $2,750 per ounce of gold, the project yields an after-tax NPV(5%) of $118 million.

As market conditions fluctuate, the asset's valuation adjusts substantially. The study outlines that the after-tax NPV(5%) climbs to $598 million if gold prices appreciate to $4,500 per ounce. These figures provide a baseline for capital expenditure requirements and potential financing structures as i-80 Gold evaluates development paths for the underground resource.

Forward Outlook

Operators and equity allocators tracking i-80 Gold (NYSE: IAUX, TSX: IAU) will monitor how management integrates the newly established Granite Creek mineral reserves into its broader operational strategy in Nevada. The formalization of отмечает the feasibility study moves the asset from preliminary economic assessment stages into a structured reserve category, setting operational benchmarks for future capital allocation and underground development timelines.