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ROUYN-NORANDA, Québec, June 30, 2026 (GLOBE NEWSWIRE) — Chibougamau Independent Mines Inc. (CBG-TSX-V in Canada, CLL1-Frankfurt, Stuttgart, Berlin and Lang & Schwarz Stock Exchanges in Germany, CMAUF-OTC in the US), herein called Chibougamau, is pleased to report that Tomagold Corporation (LOT-TSXV, TOGOF-OTCPK) has provided an update as regards recent drilling on the Berrigan Mine claims in the Chibougamau area of Quebec. The Berrigan Mine claims and a large number of others are under option from Chibougamau Independent Mines Inc. as updated in a CBG press release dated 2025-09-30. TomaGold has announced 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 by TomaGold 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 Exhibits 1 and 2), as well as several gold- and zinc-rich lenses within the broader mineralized structure.
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Highlights from the Assay Results on the Berrigan drilling
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- Major intersection of 204.25 m grading 2.05% ZnEq (0.48 g/t AuEq) (from 553.90 m to 758.15 m) in extension hole TOM-25-011EXT, underscoring the scale of the mineralized system within the Berrigan Deep Zone, including:
- 31.31% ZnEq (7.38 g/t AuEq) over 2.40 m (from 554.40 m to 556.80 m)
- 5.93% ZnEq (1.38 g/t AuEq) over 4.60 m (from 681.55 m to 686.15 m)
- 5.90% ZnEq (1.38 g/t AuEq) over 7.45 m (from 697.05 m to 704.50 m)
- 4.62% ZnEq (1.08 g/t AuEq) over 14.40 m (from 591.00 m to 605.40 m)
- Additional high-grade intersections: Prior to reaching the Berrigan Deep Zone, the hole extension also intersected a zone grading 3.02% ZnEq over 12.45 m (from 498.30 m to 510.75 m), including 16.23% ZnEq over 1.40 m. In addition, the original hole TOM-25-011 had previously identified several higher-level zones of interest, including 14.14% ZnEq over 2.00 m (from 307.50 m to 309.50 m).
- Results pending for holes TOM-25-009EXT, TOM-25-010EXT, TOM-25-012EXT and TOM-25-013EXT: Mineralization was consistently observed in drill core recovered from the four other extension holes, for which assay results are pending.
- Geological model validation: These results confirm the vertical continuity of the Berrigan Mine Project’s polymetallic hydrothermal system and validate the modeled extensions at depth. Preliminary 3D model viewer can be accessed at: https://www.mininghub.com/3d/v/4zxSrVUh.
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Exhibit 1. Vertical section of Berrigan Deep Zone, looking west
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Exhibit 2. Horizontal section of Berrigan Deep Zone, looking southwest
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Geological Context and District-Scale Potential
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The results from hole TOM-25-011EXT further validate the TomaGold’s geological interpretation of the Berrigan Deep Zone, confirming a deeply rooted polymetallic hydrothermal system (zinc, gold, silver and copper) beneath the historic Berrigan Mine.
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Lithological and structural controls: The 204.25-metre mineralized envelope intersects a sequence of ultramafic to mafic rocks composed primarily of alternating serpentinitized peridotites, komatiites, pyroxenites and gabbros. Technical data indicate that the mineralization is strongly controlled by regional structures. It is concentrated along shear zones and is localized within contact breccias between different lithological units, which act as physical barriers favouring the accumulation of mineralizing fluids.
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Mineralization styles and geochemical signature: Mineralization at Berrigan Deep is characterized by host-rock replacement and occurs as stockwork vein and veinlet networks, sheared undulating veins, and coarse semi-massive to massive sulphide masses. The sulphide assemblage is dominated by abundant sphalerite (zinc) and pyrrhotite.
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