i-80 Gold posts Granite Creek Underground FS after-tax NPV(5%) of $118 million at $2,750/oz gold

• I-80 Gold released a feasibility study for the Granite Creek Underground gold mine in Nevada, outlining initial proven and probable reserves of 556,500 oz.
• Base case at USD 2,750/oz gold shows after-tax NPV(5%) of USD 118 million; undiscounted after-tax cash flow of USD 153 million.
• Sensitivity at USD 4,500/oz gold lifts after-tax NPV(5%) to USD 598 million; undiscounted after-tax cash flow to USD 744 million.
• Mine life estimated at 8.5 years; steady-state output averages about 75,000 oz annually from 2028-2032, following Lone Tree plant commissioning.
• Five-year steady-state cash costs estimated at USD 1,827/oz; AISC estimated at USD 1,915/oz, excluding Lone Tree refurbishment capital allocation.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. I-80 Gold Corp. published the original content used to generate this news brief via CNW (Ref. ID: 202609211848CANADANWCANADAPR_C9334) on September 21, 2026, and is solely responsible for the information contained therein.