Mr. David Grondin reports

TOMAGOLD COMMENCES AUDIO-FREQUENCY MAGNETOTELLURIC (AMT) SURVEY AT ITS BERRIGAN MINE PROJECT

TomaGold Corp. has commenced an audio-frequency magnetotelluric (AMT) geophysical survey at its Berrigan mine project, located in the Chibougamau mining camp of Quebec. Conducted by Geophysique TMC, this AMT survey represents the next phase of TomaGold's systematic exploration strategy and follows the completion of the phase 2 extension drilling program, for which assay results from all five drill holes remain pending, as well as the launch of the major prospecting and geophysical campaign announced on May 28, 2026.

The Berrigan system is characterized by high-grade polymetallic (zinc-gold-copper-silver) mineralization hosted in conductive structures along major shear zones. Building on prior borehole EM (electromagnetic) results and recent drilling successes, including significant intersections in the Berrigan Deep zone, the AMT survey is expected to deliver a district-scale 3-D understanding of the structural architecture controlling mineralization across the project area. The survey is expected to identify new conductive corridors, potential extensions of known mineralization, and additional concealed massive sulphide targets at depth (up to approximately two kilometres). These insights will help refine exploration models and optimize future drill targeting across TomaGold's consolidated Chibougamau property portfolio.

Audio-frequency magnetotellurics is a passive geophysical technique that records natural variations in the Earth's electric and magnetic fields across audio frequencies. It excels at imaging resistivity contrasts in the subsurface at depths ranging from tens of metres to several kilometres, making it particularly well suited for delineating deep structural features and conductive bodies associated with polymetallic mineralization. The current AMT survey consists of a grid of 14 lines of variable length, with measurement stations positioned every 25 metres along the lines, for a total coverage of 7.5 line kilometres. The contractor is responsible for line cutting and precise chaining at 25-metre intervals. This configuration is expected to provide high-resolution data to map deep resistivity contrasts beneath the Berrigan mine and surrounding areas.

David Grondin, president and chief executive officer of TomaGold, stated: "We are excited to commence this AMT survey, which represents a significant step forward in our systematic exploration strategy at Berrigan. The survey is expected to provide a clearer understanding of the structural architecture controlling mineralization at depth while helping to identify new conductive corridors, potential extensions of known mineralization and additional high-priority exploration targets. Together with our ongoing drilling and geophysical programs, the results will help unlock the broader potential of our Chibougamau assets and guide the next phase of value-creating exploration activities."

Progress report from TomaGold's affiliated company

Carbon2Green Developments Inc., a private company in which TomaGold holds a 35-per-cent interest, together with AM Resources Corp. (35 per cent) and certain TomaGold directors and members of management (30 per cent), has recently begun establishing a portfolio of mining rights covering several peatland areas in Quebec. The company is currently evaluating these assets as part of an initiative aimed at determining their economic potential with a view to carbon credit monetization through the development of projects focused on the conservation, restoration and environmental enhancement of peatlands. Over the coming weeks, Carbon2Green intends to complete its preliminary evaluations and continue its discussions with various stakeholders, investors, communities, interest groups and government representatives in order to gather relevant information regarding the regulatory framework applicable to these assets and the optimization of their value, which is considered to have significant potential.

About the Berrigan mine project

The Berrigan mine property consists of 16 claims totalling 483 hectares located four kilometres north-northwest of the town of Chibougamau. TomaGold has an option to acquire 100 per cent of the property from Chibougamau Independent Mines Inc.

The property has been the subject of more than one historical estimate. Met-Chem Canada Inc. prepared the most recent of these in April, 2001, in a report titled "Pre-feasibility study: Etude Conceptuelle, Projects Berrigan and Tortigny" by Chuinard et al. In the report, a resource estimate completed using polygonal estimation techniques stated 1.39 million tonnes grading 3.17 per cent zinc and 1.77 grams per tonne gold on the main Berrigan mine zone. No resource classifications were given for the resource (GM61359).

The mineral resource estimate presented above is historical in nature and was not prepared in accordance with National Instrument 43-101 standards. Accordingly, the reader is cautioned not to rely on this estimate as the company is not treating the estimate as a current mineral resource. The qualified person has not done sufficient work to make the resource current. Substantial data compilation, verification, and, potentially, additional drilling and resampling would be required by a qualified person before the historical estimate could be classified as a current mineral resource. There can be no assurance that any portion of the historical mineral resource will ultimately be confirmed or demonstrated to be economically viable. For further information regarding the Berrigan mine project, please consult the press release dated Sept. 13, 2023.

Technical disclosure

The technical content of this press release has been reviewed and approved by Jean Lafleur, PGeo, vice-president of exploration of the company, and Suzie Tremblay, PGeo, vice-president of operations at Explo-Logik Inc. and a consultant to TomaGold, each acting as a qualified person under NI 43-101.

About TomaGold Corp.

TomaGold is a Canadian junior mining company focused on the acquisition, exploration and development of high-potential precious and base metal projects, with a primary focus on gold and copper in Quebec and Ontario. The company's core assets are located in the Chibougamau mining camp in Northern Quebec, where it owns the Obalski gold-copper-silver project and holds options to acquire 12 additional properties, including the Berrigan mine, Brosnan, Radar and Dufault projects. TomaGold also holds a 24.5-per-cent joint venture interest in the Baird gold property near the Red Lake mining camp in Ontario. In addition, the company has lithium and rare earth element (REE) projects in the James Bay region, strategically positioned near significant recent discoveries.

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