i-80 Gold files feasibility study on Granite Creek; after-tax NPV(5%) $118M at $2,750/oz Au, $598M at $4,500/oz Au

Canada NewsWire

Unless otherwise stated, all amounts referred to herein are in U.S. dollars.

TORONTO , Sept. 21, 2026 /CNW/ -- i-80 GOLD CORP. (NYSE: IAUX) (TSX: IAU) ("i-80 Gold", or the "Company") is pleased to announce the results of a feasibility study for the high-grade Granite Creek underground gold project ("Granite Creek Underground" or the "Project"). The Project is situated at the intersection of the highly prolific Battle Mountain-Eureka and Getchell gold trends in northern Nevada, USA. Granite Creek Underground is currently ramping up production and is expected to produce between 30,000 to 40,000 ounces of gold in 2026.

The results announced in this press release are supported by two technical reports prepared for Granite Creek Underground: (1) a technical report prepared under National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101") which, in the opinion of the qualified persons, constitutes a feasibility study under NI 43-101 (the "NI 43-101 FS" or the "FS"); and (2) a technical report summary prepared under Subpart 1300 of Regulation S-K ("S-K 1300") which, in the opinion of the qualified persons, constitutes a pre-feasibility study under S-K 1300 (the "S-K 1300 PFS" and, together with the NI 43-101 FS, the "Technical Reports"). The Technical Reports are based on the same underlying technical and economic data and analysis but have different study classifications resulting from differences in the substantive criteria applied under each of S-K 1300 and NI 43-101. As a result, the same body of technical work satisfies the definition of a feasibility study under NI 43-101 but constitutes a pre-feasibility study under S-K 1300. The mineral resource and mineral reserve estimates and the project economics presente