Mr. Marcel Robillard reports

PUMA'S SUBSIDIARY MURRAY BROOK MINERALS ACQUIRES MOUNT MCINNES PROJECT

Puma Exploration Inc.'s subsidiary, Murray Brook Minerals Inc. (MBM) (70.48 per cent held by Puma), has secured a prospective polymetallic critical minerals project in northern New Brunswick.

The Mount McInnes project, located approximately 50 kilometres (km) from Puma's Williams Brook project (optioned to Kinross), is prospective for silver, gold, lead, zinc, copper, indium, bismuth, tungsten, molybdenum and tin mineralization. It covers 11,837 hectares and comprises 19 claim blocks (539 claim units). With two prospective polymetallic projects in its portfolio, MBM is well positioned to explore for and support Canada's domestic supply of critical metals.

Marcel Robillard, Puma's president and chief executive officer, commented: "The release of New Brunswick's comprehensive minerals strategy, which aims to revitalize the province's mineral sector and bolster domestic production of critical minerals, has resulted in a record number of claims staked in the province in the last year. The Mount McInnes project adds a highly prospective polymetallic critical metals asset to MBM's portfolio and ensures that the company is well positioned to unlock some of the province's potential."

About the Mount McInnes project

The claims are underlain by Cambrian-Ordovician sedimentary rocks and Ordovician-Devonian granites. Mineralization is interpreted to be associated with porphyry dikes sourced from a deeper granitic intrusion. Sulphide-bearing alteration zones, veins and mineralized breccias contain gold, lead, zinc and indium, as well as tungsten plus or minus molybdenum mineralization. Potential exploration analogues considered by MBM include the Mount Pleasant porphyry system (Cu-Zn-In-W-Mo-Sn (copper-zinc-indium-tungsten-molybdenum-tin)) and the Coeur d'Alene district in the northwestern United States.

Historic grab samples* returned up to 314 grams per tonne (g/t) silver (Ag), 3.0 g/t gold (Au), 15.30 per cent Zn, 3.98 per cent lead (Pb), 4.00 per cent Cu, 392 g/t In, 1,150 parts per million (ppm) W, 1,980 ppm bismuth (Bi) and 1,100 ppm Sn. Float samples reported up to 6.5 per cent Cu, 226 g/t Ag, 970 parts per billion (ppb) Au, 1.6 per cent W, 12.0 per cent Mo, 975 ppm Sn, 4.36 per cent Zn, 1.06 per cent Pb and 8,800 ppm uranium (U.) Drill hole UGP-09-01 intersected a 4.2-metre (m) interval averaging 94 ppb Au, 30.2 g/t Ag, 0.57 per cent Pb and 0.93 per cent Zn, including 0.3 metre grading 921 ppb Au, 314 g/t Ag, 3.98 per cent Pb and 3.82 per cent Zn.

Grab samples* from trench TR12A returned up to 455 ppb Au, 21.9 g/t Ag, 4.99 per cent Zn and 464 ppm Mo; grab samples* from trench TR12B returned up to 644 ppb Au, 43.0 g/t Ag and 1.87 per cent Pb.

* Historical results are derived from vendor-supplied compilation materials and project statutory reports. Hamilton, Art, Long Lake property assessment reports, 2009 to 2014 (477749, 477049, 476745 and 476363). MBM's qualified person has not yet reviewed the original assessment reports or independently verified the sampling, analytical or quality assurance/quality control information.

The Mount McInnes project has undergone limited modern exploration despite encouraging geological and geochemical indicators. The reported historical assays, soil and stream-sediment anomalies, favourable geology, and geophysical targets support further systematic exploration to evaluate the property's mineral potential.

Agreement executed on June 8, 2026 (transaction details)

To acquire a 100-per-cent interest in the 19 claim blocks (539 claims), MBM agrees:

• To issue and pay to the arm's-length vendor 500,000 common shares of MBM and a $15,000 cash payment at the signature; the cash payment has already been paid;
• To make a $20,000 cash payment on or before the first anniversary of the signing of the agreement.

Additional performance payments to the vendor:

• Cash payment of $10,000 upon a first National Instrument 43-101-compliant resources estimate;
• Cash payment of $25,000 upon a positive preliminary economic assessment;
• Cash payment of $50,000 upon a positive feasibility study;
• One-time cash payment of $100,000 upon commercial production.

The vendor will retain a 2-per-cent net smelter return (NSR) royalty on any commercial production from the property. Fifty per cent of the NSR, or a 1-per-cent NSR royalty, may be purchased by MBM for $1-million. MBM retains the right of first refusal on the remaining 1-per-cent NSR royalty retained by the vendor. The agreement is subject to the approval of the TSX Venture Exchange.

About Murray Brook Minerals Inc.

MBM, a subsidiary of Puma Exploration, is a private Canadian mineral exploration company. The MBM business model, under Puma's successful DEAR strategy -- discovery, exploration, acquisition and royalties -- is to acquire prospective strategic and critical minerals properties with excellent discovery potential that a stand-alone public company can explore and develop. In the DEAR strategy, Puma usually retains an equity position and/or NSR.

MBM's portfolio consists of the 100-per-cent-owned Legacy Cu-Ag project and the Mount McInnes critical minerals project. A newly updated resource estimate for the Legacy deposit was released in late 2025 to meet the requirements for an anticipated TSX Venture Exchange listing of Murray Brook Minerals. The report outlines a 930,000-tonne inferred resource containing 13.3 million pounds (lb) Cu at 0.66 per cent Cu and 110,000 ounces (oz) Ag at 3.65 g/t Ag starting at surface and with significant expansion potential (independent technical report for the Legacy project, Restigouche county, New Brunswick, Canada, by Dr. Gilles Arseneau, PGeo, effective Nov. 28, 2025).

The acquisition adds exposure to a range of critical minerals and complements MBM's Legacy copper-silver asset. It also aligns with New Brunswick's renewed focus on critical minerals.

In July, 2026, the province selected Avenir Minerals, an Agnico Eagle Mines subsidiary, to negotiate an exclusive exploration agreement for the former Lake George antimony mine site, which also has potential for tungsten, molybdenum and gold.

Work toward a potential listing of MBM as a separate TSX-V-listed resource company, following a structure similar to the Canadian Copper transaction in 2022, is continuing. Puma will provide further details as the transaction becomes more concrete, including the potential distribution of MBM shares to Puma shareholders. Presently, the proposed transaction remains conceptual and there is no guarantee it will proceed or be completed.

Qualified person

The scientific and technical content of this news release has been prepared, reviewed and approved by Dominique Gagne, PGeo, vice-president of exploration of Puma Exploration, a qualified person as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects.

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