Vancouver, British Columbia and Boise, Idaho–(Newsfile Corp. – October 2, 2025) – Thunder Mountain Gold, Inc. (TSXV: THM) (OTCQB: THMG) (the “ Company ” or “ Thunder Mountain “) is pleased to announce that its board of directors has approved a non-brokered private placement of up to 1,000,000 units of the Company (each, a “ Unit “) at a price of US$0.25 (CAD$0.35) per Unit for gross proceeds of up to US$2,500,000 (CAD$3,500,000) (the “ Private Placement “). Each Unit will consist of one share of the Company’s common stock (each, a “ Common Share “) and one-half common share purchase warrant (each whole warrant, a “ Warrant “). Each Warrant will entitle the holder to purchase one additional share of common stock of the Company at a price of US$0.40 (CAD$0.55) for a period of 2

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