TomaGold Continues to Expand Berrigan Mine at Depth with a New Major 204.25 m Intersection in the Berrigan Deep Zone

About this update from Tomagold Corporation Class A

Highlights MONTRÉAL, June 30, 2026--(BUSINESS WIRE)--TOMAGOLD CORPORATION (TSXV: LOT; OTCPK: TOGOF) ("TomaGold" or the "Company") is pleased to announce assay results from the first of five extension holes, TOM-25-011EXT, completed as part of Phase 2 of its drilling program at the Berrigan Mine Project, located in the Chibougamau Mining Camp of Québec. The extension of hole TOM-25-011 was designed to test modeled conductive plates at depth within the Berrigan Deep Zone. The hole, which reached a final depth of 834.70 m, intersected a 204.25 m mineralized envelope (see Figures 1 and 2), as well as several gold- and zinc-rich lenses within the broader mineralized structure. David Grondin, President and CEO of TomaGold, said: "The extension of hole TOM-25-011EXT, which intersected 2.05% ZnEq (0.48 g/t AuEq) over 204.25 m (including 31.31% ZnEq over 2.40 m), has confirmed the continuity and extent of the Berrigan Deep mineralized system following its discovery by hole TOM-25-015 in December last year, which returned 5.08% ZnEq (1.19 g/t AuEq) over 98.50 m (including 23.20% ZnEq over 4.90 m). The interception of a mineralized envelope spanning more than 224 metres underscores the scale of this hydrothermal system. Beyond the high-grade zones already delineated in its upper portion, this broad mineralized interval at depth demonstrates the persistence of mineralization and increases our confidence in the system's potential for further expansion. These results support the continuation of exploration, drilling and geological modelling activities across the project."

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