• Thunder Mountain Gold appointed Steven Osterberg senior vice president of exploration, effective immediately, to advance the South Mountain project in Idaho.
• Osterberg will oversee exploration strategy, drilling programs and resource growth across the project portfolio.
• South Mountain's expanded land position totals approximately 13,061 acres following land purchases, claim staking and a lease.
• Investment in the polymetallic project totals approximately US$25 million since 2007.
• Ron Espell stepped down as chief operating officer.

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. Thunder Mountain Gold Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001062993-26-005738), on November 04, 2026, and is solely responsible for the information contained therein.