Thunder Gold Corp.

Description

Thunder Gold Corp. is a Canadian resource-stage explorer advancing the 100%-owned Tower Mountain Gold Project near Thunder Bay, Ontario. The January 2026 Mineral Resource contains approximately 34.5 Mt grading 0.46 g/t Au for 514 koz Indicated, plus 211.1 Mt grading 0.45 g/t Au for 3.053 Moz Inferred, for a total resource of approximately 3.567 Moz gold.

The investment case is based on resource scale, excellent regional infrastructure and substantial conversion and expansion potential. Highway, rail and hydro power are at or near the property, while only about 25% of the broader intrusive halo is represented in the current MRE. September 2026 infill drilling continued to support model continuity ahead of a targeted year-end resource update.

The next major de-risking steps are resource conversion, updated metallurgy and a planned initial scoping study in Q2 2027. Thunder Gold remains pre-economic-study, with no Mineral Reserve, AISC, project capex or production decision.

List of Projects:

Project 1: Tower Mountain
Ontario, Canada — Gold. 100%-owned flagship project covering approximately 7,625 ha near Thunder Bay. Includes the Thunder Lake, Halow and Kons acquisitions. Current drilling targets conversion and expansion of the 3.567 Moz gold MRE.

Project 2: Electra
Ontario, Canada — Gold exploration optionality. Option to earn 100% of a contiguous approximately 4,571 ha western block. Subject to a 2.5% legacy NSR, of which 1.5% can be bought back.

Project 3: Far Lake
Ontario, Canada — Copper and silver. 40% JV interest operated by Benton Resources.

Project 4: Iris Lake / Vanguard
Ontario, Canada — Gold, silver, copper and zinc. 25% JV interest operated by Gold X2 Mining.

Project 5: Seagull / Disraeli Retained Interest
Ontario, Canada — Retained royalty / equity optionality. The underlying properties were sold to Rift in 2026; Thunder Gold retains a 1% NSR and 15.99M private Rift shares. These should not be treated as current operated projects.

Project 6: Pickle Lake Royalty Package
Ontario, Canada — Precious/base-metal royalty optionality. Includes NSR interests over Dorothy-Dobie, Kasagiminnis, South Limb and Pickle Lake West.

Project 7: Okohongo Residual Interest
Namibia — Residual royalty/financial exposure following disposal. Thunder Gold retains a 1% NSR and a US$1.0M convertible note. It should not be treated as a current operated project.

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List of projects

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