Thunder Gold Identifies New Gold Discovery At Tower Mountain Property, Shebandowan Greenstone Belt, Ontario.

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Thunder Bay, Ontario--(Newsfile Corp. - April 20, 2026) - Thunder Gold Corp. (TSXV: TGOL) (FSE: Z25) (OTCQB: TGOLF) ("Thunder Gold" or the "Company") is pleased to announce initial drill results from the 2026 drill program at the Company's flagship Tower Mountain Property in the Shebandowan Greenstone Belt, 40 kilometres west of the international port city of Thunder Bay, Ontario. Drilling at the 'Star Target', approximately 500 metres west of the current optimized pit limit that defines the current Mineral Resource Estimate ("MRE"), has identified at-surface gold grades over significant interval lengths. The Company wishes to acknowledge that funding received from the Ontario Junior Exploration Program ("OJEP") directly led to this new discovery. Highlights: New discovery 500 metres west of the current optimized pit constraining the Company's current MRE. TM26-193 intersected 73.5 metres averaging 0.364 g/t Au; including 16.5 metres averaging 0.779 g/t Au. TM26-194 intersected 35.5 metres averaging 0.513 g/t Au; including 15.0 metres averaging 0.832 g/t Au. TM26-197 intersected 13.5 metres averaging 0.366 g/t Au; including 7.5 metres averaging 0.572 g/t Au. The Star Target lies within an approximately 200-metre-wide, east-northeast ("ENE") trending Timiskaming conglomerate unit that has been mapped over 5.0 kilometres, from Bateman Lake to the UV target, west of the Tower Mountain Intrusive Complex ("TMIC") (Reference Figure 1). Wes Hanson P.Geo., President and CEO states: "The Star Target results, considered with those at Bateman Lake, 3.0 kilometres to the southwest, suggest potential for additional resource growth within Timiskaming conglomerate in both the original Tower Mountain claims as well as the recently optioned Electra block to the west. Grades and interval lengths are identical to those observed along the western TMIC contact hosting the current mineral resource for the property. This new trend doubles our target opportunities within a 5-kilometre radius of Tower Mountain. The result is a tight, manageable, land position with a current resource and multiple gold showings offering opportunity for future resource growth. A fully funded drill program is underway to upgrade 'inferred' resources to the 'indicated' classification through infill drilling within the optimized resource pit limit. It's encouraging that our recent property deals offer ...

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