Thunder Mountain Gold, Inc.

What they do

Thunder Mountain Gold owns mining rights, mining claims and properties in Nevada and Idaho, principally the South Mountain Property in Owyhee County, Idaho and the Trout Creek Property in Nevada. It holds 100% of Thunder Mountain Resources, Inc., which in turn owns 100% of South Mountain Mines, Inc., acquired in 2007 along with 17 patented claims (about 327 acres). The company has since expanded through staking, leases and private mineral land purchases, including a 20-year lease with the Idaho Department of Lands executed April 28, 2026 covering 3,675 acres. It reports over 14,000 acres of mineral rights now controlled.

Revenue drivers

• Exploration-stage mining properties — Reported annual revenue was $0.00 in 2018 and last appeared at $300,000 in 2022; no revenue has been reported in recent quarters, so the company is not currently generating meaningful operating revenue.
• South Mountain Project (Idaho) — The primary asset; activities in the first half of 2026 focused on land acquisition, historic data compilation and initiation of target drill testing. No production or resource-based revenue is disclosed.
• Trout Creek Property (Nevada) — Named as a company property alongside South Mountain, but the excerpts give no revenue, production or resource figures for it.

Recent performance

Latest reported balance sheet at 2026-06-30 shows total assets of $2.3M, total liabilities of $2.2M, cash and equivalents of $1.1M, long-term debt of $167,900 and shareholder equity of negative $60,578. Annual net loss widened to $2.8M in 2025 from $631,111 in 2024, with diluted EPS of negative $0.03 versus negative $0.01. Operating cash flow was negative $1.6M in 2025 versus negative $539,287 in 2024. The most recent quarterly revenue points shown are $75,000 for 2022-12-31 and $0.00 for each of the three quarters ended 2023-09-30.

Strategy

Management's stated plan for the next twelve months, subject to available capital and market conditions, is to continue advancing the South Mountain Project, including baseline environmental and engineering work needed to complete a Preliminary Economic Analysis. The company says it will pursue partnerships, joint ventures, option agreements and strategic relationships to advance South Mountain and acquire additional properties. First-half 2026 project work focused on land acquisition, compiling historic data and starting target drill testing. The April 2026 Idaho Department of Lands lease added 3,675 acres adjacent to South Mountain, supplementing patented claims, private leases and BLM unpatented claims. The company also reprocessed historic induced polarization/resistivity geophysical data and updated its project geologic map in the second quarter of 2026.

Risks

• No current revenues — The company lists potential inability to produce revenues among its risk factors, and no meaningful revenue has been reported since 2022.
• Negative shareholder equity and losses — Shareholder equity was negative $60,578 at 2026-06-30, with a $2.8M net loss for 2025 and negative $1.6M operating cash flow.
• Exploration and feasibility uncertainty — Risk factors include the speculative nature of mineral exploration, diminishing quantities or grades, and costs and uncertainties around resource development and economic feasibility.
• Permitting and regulatory constraints — The company cites permitting constraints or delays and potential inability to comply with applicable government regulations or law as risks.

Outlook

Management states the next twelve months will be directed at advancing the South Mountain Project toward a Preliminary Economic Analysis, subject to available capital and market conditions. The company also plans to pursue partnerships, joint ventures and option agreements to fund and advance the project and to acquire additional properties. No revenue or production guidance is provided in the excerpts.