TomaGold completes extension drilling at Berrigan, launches survey at Chibougamau

Highlights Completion of Phase 2 of the extension drilling program on holes TOM-25-009 to TOM-25-013: visual observations of mineralization in the drill core are extremely encouraging. Samples from holes TOM-25-009EXT and TOM-25-011EXT have been shipped to the laboratory, with assay results expected shortly. Samples from the remaining holes are currently being prepared.

Launch of a major ground prospecting campaign targeting multiple untested historical showings across all optioned properties held from Chibougamau Independent Mines, Globex and SOQUEM. Borehole electromagnetic (BHEM) survey will soon begin in holes TOM-25-010, TOM-25-012 and TOM-25-015 to detect off-hole conductors and identify potential deep extensions of mineralized zones already intersected by drilling. Large-scale surface geophysical (UTEM) survey planned over a corridor measuring approximately 4 km by 2 km to identify new regional conductors and prioritize high-potential drill targets along the area’s main mineralized structures.

Audio-frequency magnetotelluric (AMT) survey planned to map deep resistivity contrasts, better define the district’s structural architecture and identify corridors potentially associated with regional mineralized systems. TOMAGOLD CORPORATION (TSXV: LOT; OTCPK: TOGOF) (“ TomaGold ” or the “ Company ”) is pleased to announce the completion of Phase 2 of its extension drilling program at its Berrigan Mine project. The program, which focused on extending drill holes TOM-25-009 through TOM-25-013, was designed to test the core of modelled conductive plates at depth and evaluate the potential of the Berrigan Deep zone, discovered just before Christmas (see Figure 1).

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260528489357/en/ Figure 1: 3D plan view showing drill holes TOM-25-009 to TOM-25-013 and their planned extensions (blue lines) targeting the modeled conductive plate at depth, along with significant intersections from holes TOM-25-014 and TOM-25-015 within the Berrigan Deep zone. The Company is encouraged by the systematic mineralization observed in the recovered drill core.

Holes TOM-25-009EXT and TOM-25-011EXT have been logged and cut, and the samples have been shipped to the laboratory; assay results for these holes are expected shortly. Holes TOM-25-010EXT, TOM-25-012EXT and TOM-25-013EXT are currently being logged and cut. Concurrently, encouraged by these positive geological indicators, TomaGold is launching a large-scale ground prospecting and exploration campaign.

The program will cover all of the strategic option properties acquired from Chibougamau Independent Mines, Globex and SOQUEM . This cohesive package of claims forms a true consolidated mining camp in the heart of the Chibougamau mining district. Several high-priority historical mineralized showings that have never been subject to rigorous follow-up work will be evaluated and sampled over the coming weeks.

In addition, in order to optimize the structural understanding of the area and map the continuity of mineralized zones at depth, the Company will soon initiate a borehole electromagnetic (BHEM) survey in drill holes TOM-25-010, TOM-25-012 and TOM-25-015 to detect off-hole conductors and identify potential deep extensions of mineralized zones already intersected by drilling. The Company also plans to conduct a large-scale surface geophysical (UTEM) survey over a corridor measuring approximately 4 km by 2 km to identify new regional conductors and prioritize high-potential drill targets along the area’s main mineralized structures. Finally, an audio-frequency magnetotelluric (AMT) geophysical program is also planned to map deep resistivity contrasts, better define the district’s structural architecture and identify corridors potentially associated with regional mineralized systems.