Mr. Connor Messler reports

GAMMA RESOURCES ANNOUNCES PLANNED RADON FLUX BASELINE SURVEY AT MESA ARC URANIUM PROJECT IN NEW MEXICO, PROVIDES UPDATE ON PROJECT TIMELINES

Gamma Resources Ltd. plans to conduct a radon flux survey at its Mesa Arc project in northern New Mexico. The survey will be designed to test areas of historically documented mineralization, offering the possibility of an exploration technique that can be expanded to the larger Mesa Arc claim package.

The company has engaged RadonEx Ltd. of St-Lazare, Que., to perform the baseline study with data collection planned for the fourth quarter of 2026. Radon flux measurements are planned over an area with historically documented uranium mineralization that is part of the company's historical estimate at Mesa Arc (see "About the Mesa Arc project" and "Note regarding historical estimates" below).

The survey will test for surface radon anomalies associated with historically identified subsurface occurrences of uranium. The survey sensors capture naturally escaping radon gas and require no preparation of the underlying geology, relying on continuing and natural processes. "The concentrations of the radon gas recorded by the sensors, within a set period of time, may be used to make inferences on uranium mineralization at depth," stated C. Connor Messler, president and chief executive officer of Gamma. "This is a low-impact exploration method, utilizing naturally escaping radon gas, to identify prospective areas within the Mesa Arc project. If the baseline study is successful, survey expansion may ultimately help reduce surface disturbance on the project in these early stages of exploration."

The planned radon survey is part of Gamma's larger effort for data acquisition and validation using methods that limit surface disturbance while generating data instrumental in future project planning.

About radon flux surveys

Radon is a gas produced during the radioactive decay of naturally occurring uranium mineralizations, and, as a gas, it is able to move through pores and fractures to the surface where it can be detected. Radon surveys have historically been used as an indicator of buried uranium mineralization. RadonEx's radon flux monitor (RFM) survey is a surface survey that measures radon flux at surface, which may reflect underlying uranium mineralization.

Gamma intends to deploy this survey method at Mesa Arc, initially running a test survey over historically documented mineralization and potentially expanding the surveys to property-wide deployment if initial results are positive. The goal is for the RFM surveys to act as a key component in targeting buried uranium mineralization at Mesa Arc, making subsequent drilling operations more cost-effective. The surveys are non-invasive, will use existing infrastructure, consume no water, and are short term and temporary in nature.

About the Mesa Arc project

The Mesa Arc project covers a four-mile trend of historically documented uranium mineralization within the Chama basin of northern New Mexico. Following a recent claim expansion, the property comprises 226 lode mining claims covering approximately 4,520 acres. The project has seen extensive exploration work with roughly 1,000 drill holes completed on and adjacent to the Mesa Arc property between the 1960s and 1980s. Of these, 406 holes are located within the current claim block; mineralization on adjacent ground is not necessarily indicative of mineralization on the property. A historical estimate for the AR-15 area in Section 10, T25N R5E, is reported in "Martinez Canyon Project, Rio Arriba County, NM -- Resource Calculation," prepared by J.R. Carden for Magnum Uranium Corp. and dated June 30, 2006. Mr. Carden is currently an adviser to the company. Using the surface polygonal method on 85 historical drill holes, the report estimated a total resource, with no cut-off grade applied, of 329,700 tons grading 0.106 per cent U3O8 (triuranium octoxide) containing approximately 701,700 pounds of U3O8. The report also defined a high-grade core within the total resource, using a cut-off of five feet at 0.10 per cent U3O8, of 154,700 tons grading 0.15 per cent U3O8 containing approximately 474,500 pounds of U3O8; this is a subset of and is not additional to the total resource. Polygons were drawn around each mineralized hole with sides at half the distance to the nearest hole or extended approximately 75 feet where no bounding hole existed. Grades are equivalent uranium (eU3O8) from downhole gamma probing, converted to U3O8 using a disequilibrium factor of eU3O8 multiplied by 1.29 minus 0.001, and a tonnage factor of 16 cubic feet per ton was used. The terms total resource and resource used in the report do not correspond to the mineral resource or mineral reserve categories of the CIM (Canadian Institute of Mining, Metallurgy and Petroleum) definition standards. The company considers the historical estimate relevant because the AR-15 area lies entirely within the current Mesa Arc claim block. Its reliability is limited because it relies on Anaconda drill logs and maps from the 1970s, the drill hole locations were reconstructed from a 1979 survey map not tied to topography, the grades are probe-derived equivalents adjusted by a disequilibrium factor that the report recommended be refined, and the original drill data are held by Anaconda and Arco, with the company relying on copies of the archived logs. The company is not aware of any more recent estimates or data. To verify the historical estimate or upgrade it to a current mineral resource, the company would need to compile and validate the historical drill data, complete confirmation and twin drilling with chemical assays to test the disequilibrium factor, and have a qualified person prepare a new mineral resource estimate. A qualified person has not done sufficient work to classify the historical estimate as current mineral resources or mineral reserves, and the company is not treating the historical estimate as current mineral resources or mineral reserves. As of October, 2026, the company has withdrawn the draft plan of operations previously under review by the U.S. Forest Service. The draft, initially submitted in the first quarter of 2026, has been withdrawn as the company develops its exploration targeting strategy.

About Gamma Resources Ltd.

Gamma Resources is a U.S.-focused uranium exploration company advancing high-quality assets in the Mountain West region of the United States. The company's portfolio includes the Green River project in Utah, comprising 1,100 acres near prominent regional producers, and the Mesa Arc project in New Mexico, a strategic land position now totalling 4,520 acres that hosts a historical uranium estimate in the Chama basin. Management believes the company is well positioned to benefit from the policy and market tailwinds reshaping the U.S. nuclear landscape and to help meet growing demand with responsibly sourced, U.S.-based uranium supply.

Gamma trades on the TSX Venture Exchange (symbol: GAMA), in the United States on the OTCQB (symbol: GAMXF) and in Germany on the Frankfurt Stock Exchange (symbol: MRD0).

Qualified person

Anders Hogrelius, PG, RPGeo, SME-RM, MAIG, a qualified person as defined by National Instrument 43-101, has reviewed and approved the scientific and technical information in this news release. Mr. Hogrelius is an independent consultant to the company. Mr. Hogrelius has reviewed the historical drill logs and reports underlying the historical estimate, including the June 30, 2006, Carden report and the Anaconda records it cites. The historical sampling and analytical data cannot be independently verified as the original samples are no longer available and the historical drill holes have been backfilled and cannot be reprobed, and the historical estimate should be read with that limitation in mind.

Note regarding historical estimates

The uranium estimate figures referred to in this news release are historical estimates. A qualified person has not done sufficient work to classify these historical estimates as current mineral resources or mineral reserves, the company is not treating them as current mineral resources or mineral reserves, and they should not be relied upon as such.

We seek Safe Harbor.