i-80 Gold Announces Lone Tree Plant Refurbishment Update; Study Highlights Material Increase in Margins and Short Payback Period

Refurbishing and commissioning the Lone Tree Plant marks a key milestone in
i-80 Gold's phase one growth plan

TORONTO, Dec. 18, 2025 /CNW/ - i-80 GOLD CORP. (TSX: IAU) (NYSE American: IAUX) ("i-80 Gold", or the "Company") is pleased to announce the results of an engineering study (the "Study" or the "Engineering Study") for the refurbishment of its Lone Tree Plant ("Lone Tree Plant" or the "Plant") located in Northern Nevada, USA. i-80 Gold is one of two gold companies in Nevada with an autoclave processing plant. As part of i-80 Gold's development plan, the Lone Tree Plant is expected to serve as a central hub for processing refractory material from the Company's three high-grade underground mines: Granite Creek, Archimedes, and Cove (see Figure 1 in Appendix).