07:09 AM EDT, 09/10/2025 (MT Newswires) -- i-80 Gold ( IAUX ) was at last look up 1.85% in US premarket Wednesday after it released initial assay results from the Granite Creek underground project and provided an drilling update from the Cove underground project, both located in Nevada.

Results from the first six drill holes at Granite Creek's South Pacific Zone showed robust high-grade mineralization throughout the zone and suggest potential to expand the zone to the north and at depth.

The company highlighted hole iGS25-02A, which it said represents the most northerly and deepest hole drilled to date in the South Pacific Zone. The hole returned grades of 33.6 grams per tonne gold over 2.9 meters and 29.7 g/t gold over 3.6 m.

The drilling program aims to convert mineral resources from the inferred category to the indicated category. A feasibility study for Granite Creek is planned for completion in the first quarter of 2026.

At the Cove project, about 15% of the known mineralization in the upper portions of the Helen Zone is oxidized and must be processed at the company's Lone Tree central processing facility. The remainder of the known mineralization is sulfide material and must be processed by either autoclaving or roasting for optimal gold recovery.

As a result, a mineral resource estimate to be included in a feasibility study is expected to reflect a conversion of currently estimated inferred and indicated resources into higher confidence categories of resource classification.

The company is also working to complete the feasibility study in the first quarter of 2026.

Shares in IAU were down 2.5% in Canada yesterday.