Thunder Bay, Ontario, May 12, 2025: Thunder Gold Corp (formerly White Metal Resources Corp) (TSXV: TGOL) (FRA: Z25) (OTCQB: TGOLF) (“Thunder Gold” or the “Company”) is pleased to announce results from the Phase One drill program at it’s 100%-owned, 2,500-hectare, Tower Mountain Gold Property, located in the Shebandowan Greenstone Belt, 50 kilometres west of the port city of Thunder Bay, Ontario.

Highlights:
•Results suggest the high-grade gold target plunges 30° to 40° to the southeast.

•Nine holes (1,209 metres) of the planned 2,000-metre program were completed, 800 metres were deferred to a fully funded Phase Two program commencing in June.

•Statistical analysis confirms similar grade and distribution to the historical data parallel to the western contact of the “Mountain Intrusive Complex (“TMIC”).

•All mineralization to date at the P-Target is hosted by intrusive rocks comprising the TMIC which is largely untested within it’s 2.5 x 1.5-kilometre footprint.

The Phase One drill program (2,000 metres) was designed to test the P-Target down-dip, along a 300-metre strike length. Only 1,200 metres (60%) of the Phase One drill program was completed. Three (3) holes (800 metres) were deferred to the Phase Two drill program due to safety concerns related to access, construction and operations at the drill pads proposed on Section 400 (Reference Figure 1). The combination of steep topographic relief and significant snow accumulation led to the decision to defer the planned drilling on Section 400 to the Phase Two drill program scheduled to begin this month.

Eight (8) of nine (9) holes completed in Phase One intersected low-grade gold values, ranging from 0.10 to 0.50 g/t Au over broad intervals, often several tens of metres (Reference Table 1.0 & Figure 2). One-hole TM25-166 terminated prematurely in a flat-lying fault zone at a depth of 84.0 metres. None of the Phase One drill holes intersected the intensely brecciated and altered monzonite host rock that returned substantially elevated gold grades in the 2024 surface channel sampling that averaged 3.96 g/t Au over 23.7 metres and subsequent near-surface drill holes that averaged 1.11 g/t Au over 23.7 metres true thickness.

This initial drilling suggests the host monzonite plunges to the southeast at 30° to 40° (Reference Figure 2). The Phase One drill program was designed to test the eastern and western strike extent, the down-dip continuity to the south and the plunge continuity to the southeast (Reference Figures 1 & 2). Holes TM25-161, 162 and 163 (SECTIONS 200 & 300), intersected syenite, supporting the interpretation of a southeast plunge to the target monzonite. Planned drill collar locations on SECTION 300 had to be shifted south due to steep topographic relief. When field personnel advised that access to SECTION 400 wasn’t possible, holes 165 and 166 (SECTION 300) were fanned to the east, off the TM25-162 drill pad in an effort to intersect the target monzonite down plunge. Unfortunately, the geometry (dip, plunge, collar location and hole alignment) wasn’t optimal and these holes missed the target, interpreted as passing under target. The decision was then made to test the strike extent of the monzonite to the west on Section 100 with holes TM25-167, 168 and 169, all of which intersected syenite as predicted.

Wes Hanson, President and CEO notes, “I’m very pleased with the results from the P-Target to date. Statistically, the drill results, excluding the high-grade surface channel samples, are almost an exact match to the larger, historical data set from the western contact of the Tower Mountain Intrusive Complex (“TMIC”). Key correlations observed include both average grade and gold distribution at all relevant cut-off grades. Demonstrating that a similar statistical population falls along the eastern TMIC contact is a critical step in demonstrating the resource potential of the Tower Mountain Property and confirms our primary exploration concept that the TMIC perimeter offers excellent potential to increase the mineralization footprint. ”

“I’m also pleased to report our all-in exploration costs for Phase One was C$273 per metre, well below our guidance of C$300 per metre. This positions Tower Mountain as one of the lowest cost exploration opportunities in Canada.”

“We plan to resume drilling in early June as planned, completing the deferred holes at the P-Target before moving on to the 37-38 and A Targets along the western TMIC margin where historical drilling failed to close off both targets. Both targets are near-surface and both have returned high grade results including 963.0 g/t over 1.5 metres in TM23-137, and 4.05 g/t over 21.0 metres in hole TM22-119 at the A-Target.

FIGURE 1. P-TARGET SOIL GEOCHEMISTRY WITH 2024 & 2025 PHASE ONE DRILL RESULTS

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