VANCOUVER, British Columbia, September 19, 2025 – TheNewswire - Gamma Resources Ltd. (TSX-V: GAMA; OTCPK: MLLOF; Frankfurt: MRDN) (“Gamma” or the “Company”) is pleased to announce that it has successfully renegotiated the terms of its existing promissory note (the “Note”) with two US investors (the “Lenders”), providing the Company with enhanced flexibility and reinforcing the strong, cooperative relationship between the parties.

Under the revised terms, Gamma has agreed to a modified repayment schedule designed to better align with the Company’s business plan and upcoming uranium asset development initiatives. This updated framework is expected to provide a balanced solution offering repayment certainty for the Lenders while giving Gamma the flexibility to raise capital, advance its projects, and create long-term value for all stakeholders.

In addition, the Lenders have indicated a willingness to consider converting of a portion of the Note into equity at appropriate times in the future, further demonstrating their confidence in Gamma and its long-term growth potential. Importantly, the Lenders have reaffirmed their support for Gamma and its stakeholders, expressing their commitment to working cooperatively with management to advance the Company and its new initiatives.

Gabriel Alonso-Mendoza, President and CEO of Gamma Resources, commented, “We are very pleased to have reached amended terms that provide Gamma with the flexibility needed to advance our uranium asset development plans while remaining committed to meeting our obligations. These changes come at a pivotal time, as we focus on unlocking the potential of our portfolio and positioning the Company for growth amid a uranium market supported by strong, long-term fundamentals. We greatly appreciate the continued confidence and support of our Lenders, as we work together to create lasting value for all stakeholders.”

Summary of the Revised Note

The Note was originally issued on August 2, 2022, in the principal amount of US$1,150,000, bearing interest at 5%, and included an original issue discount of US$150,000, resulting in net proceeds to the Company of US$975,000. The current outstanding balance of the Note is US$1,106,641.

1. Immediate Good-Faith Payments

• C$200,000 cash payment upon closing of Gamma’s first equity financing tranche. (Paid) 

• C$100,000 cash payment upon closing of the second equity financing tranche. 

 

2. Revised Repayment Schedule

• C$250,000 by December 31, 2025. 

• C$250,000 by March 31, 2026. 

• C$350,000 by June 30, 2026. 

• C$350,000 by September 30, 2026.
  
  (Note: these represent outside dates; Gamma may settle earlier if circumstances allow.) 

Gamma’s long-term approach to resolving this legacy facility is underpinned by its diversified asset base and strategy to responsibly advance its portfolio. The Company’s current assets include cash on hand, lease-to-acquire agreements covering two advanced-stage uranium projects in Utah and New Mexico, its proprietary rare earths processing technology, equity and royalty interests in ACDC Metals Ltd. (ASX: ADC), and other potential sources of value under review. Collectively, these provide Gamma with a range of options to meet its obligations, support ongoing operations, and unlock future growth opportunities.

About Uranium and Nuclear Energy

Uranium and nuclear energy are central to U.S. strategic, environmental, and economic objectives.1 As global demand for decarbonized, reliable baseload power increases and as the U.S. seeks to reduce dependence on foreign suppliers for critical inputs in the nuclear fuel cycle domestic uranium supply, mining, conversion, enrichment, and fuel fabrication have become matters of national priority.2 Government policies and recent legislation have aimed at bolstering the domestic nuclear industrial base, expanding uranium reserves, and streamlining regulatory paths for advanced reactors.3

For Gamma, this environment presents an aligned opportunity. Gamma’s uranium-focused projects, growing asset base, and strategic positioning give it the potential to contribute meaningfully to U.S. and allied energy supply security. The company’s lease-to-acquire agreements on uranium assets, combined with its equity interests in the REE sector via ACDC Metals, enable Gamma to benefit from rising demand for clean, secure energy sources—all while aligning with broader U.S. policy goals around energy sovereignty, carbon reduction, and supply chain resilience.

About Gamma’s Uranium Projects

As part of its long-term growth strategy, Gamma is advancing a portfolio of uranium projects in the United States, providing exposure to high-potential districts and aligning the Company with U.S. energy security and clean power objectives. Gamma is looking forward to beginning exploration work in the last quarter of 2025.

Green River Uranium Project – Utah

The Green River Project, located in Emery County’s San Rafael Mining District, consists of 41 unpatented lode mining claims targeting uranium mineralization within the Salt Wash member of the Morrison Formation. Situated just 11 km from the Maverick Minerals uranium/vanadium processing plant and adjacent to Western Uranium & Vanadium Corp’s San Rafael Project, the area is surrounded by notable deposits such as Deep Gold, Down Yonder, 4484 Deposit, North Deposit, and Jackrabbit, which collectively host significant historical resources. Additionally, three nearby mines — Snow, Lucky, and Probe — produced approximately 1,000,000 lbs of U₃O₈ between 1973 and 1982. While mineralization on adjacent properties may not be indicative of results at Green River, the claims are royalty-free and benefit from existing exploration infrastructure and data, with geology supportive of potential ISR development.

Mesa Arc Uranium Project – New Mexico

The Mesa Arc Project, located in northern New Mexico, now encompasses 226 federal lode mining claims following Gamma’s recent staking of an additional 185 claims. The district has a well-documented history of uranium production and mineralization, with prior drilling confirming uranium-bearing zones. In 2006, Magnum Uranium Corp. completed an internal, non-NI 43-101 compliant resource estimate indicating 2.5 to 3.0 million pounds of U₃O₈ on the project claims. With potential for strike and down-dip extensions remaining open.4

About Gamma’s Rare Earths Processing Technology

Gamma Resources, through its wholly owned subsidiary Medallion Resources, owns the Medallion Monazite Process (MMP), a proprietary, technology designed to extract rare earth elements (REEs) from monazite, a by-product of heavy mineral sand mining. The process provides a sustainable alternative to conventional extraction methods, producing a high-value mixed rare earth concentrate with minimal environmental impact.

Gamma has licensed this technology to ACDC Metals Ltd. (ASX:ADC) which holds monazite rich heavy mineral sand properties in Victoria, Australia. Gamma received an initial 4.8 million ACDC Metals shares, with the potential to increase its holding to approximately 8.05 million shares through performance milestones tied to pilot plant completion and commercial production.

Qualified Person

Mr. Mark Saxon (FAusIMM, MAIG) a “qualified person” for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (a “Qualified Person”) and a director of the Company has reviewed and approved the scientific and technical disclosure in the news release.

_________________

1 https://www.energy.gov/articles/restoring-americas-competitive-nuclear-energy-advantage

2https://www.eia.gov/todayinenergy/detail.php?id=64444

3https://www.whitecase.com/insight-alert/government-initiatives-fueling-nuclear-energy-growth-united-states

4The historical mineral resource estimates quoted for the Mesa Arc Project are sourced from internal resource calculations performed by Magnum Uranium Corp. on 6/30/2006. Grade-thickness maps were published and a 'Thiessen Polygon Method' was used to calculate the resource estimates. There was no supporting technical report published with the resource calculation.

 

Data from summary logs of each drill hole giving the depth, thickness and grade of theintercept, was incorporated into a spreadsheet. All uranium grades were given in Ueq(equivalent uranium as determined by down-hole probe). A disequilibrium ratio of Ueq x 1.29 -0.001 was used to estimate the true grade. The true grade x thickness value was then assigned to each polygon. These intercepts were added and a volume was calculated for each hole based on the area x thickness. A tonnage factor of 16 was used in the calculation based on the average density of sandstone. A tonnage was assigned to each polygon (cubic feet of a polygon/16 tons), then the pounds of U3O8 for each polygon was determined. Cut off grade in the calculations was .02 Ueq.

 

The historical mineral resource estimates for the nearby deposits held by third parties near the Green River Project use indicated and inferred mineral resource categories and are believed to have the same meaning per those resource categories set out in sections 1.2 and 1.3 of the NI 43-101 Standards of Disclosure for Mineral Projects.

 

Select historic drill holes shall be twinned to verify grade. Any historic holes remaining open could be probed to verify grade.

 

The above information was derived from historical information that has not been verified or confirmed by a Qualified Person (as defined below). Such information will be used to assist the Company in plans for ongoing work on the properties, but the reader is cautioned that results may not be repeated. No Qualified Person has done sufficient work to classify the historical estimates as current mineral resources or mineral reserves and the Company is not treating the historical estimates as current mineral resources or mineral reserves.

 

Management cautions that past results on adjacent properties are not necessarily indicative of the results that may be achieved on the Projects being acquired.

About Gamma Resources Ltd.

Gamma Resources Ltd. is a U.S.-focused uranium exploration and development company advancing high-quality assets in the Mountain West region. 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 totaling 4,520 acres that includes historic uranium resources in the Chama Basin. Management believes the Company is uniquely positioned to benefit from the unprecedented policy and market tailwinds reshaping the U.S. nuclear landscape, and help meet this demand with responsibly sourced, U.S.-based uranium supply.

Gamma trades on the Toronto Venture Exchange (TSX-V: GAMA), OTC (OTCPK: MLLOF) and Frankfurt (FRA: MRDN).

For Further Information

Mr. Gabriel Alonso-Mendoza, President and CEO
Email: gabriel@gammaresourcesltd.com
Tel: (833) 854-6826
Website: www.gammaresourcesltd.com

Forward-looking Statements

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE. STATEMENTS IN THIS NEWS RELEASE, OTHER THAN PURELY HISTORICAL INFORMATION, INCLUDING STATEMENTS RELATING TO THE COMPANY'S FUTURE PLANS AND OBJECTIVES OR EXPECTED RESULTS, MAY INCLUDE FORWARD-LOOKING STATEMENTS. FORWARD-LOOKING STATEMENTS ARE BASED ON NUMEROUS ASSUMPTIONS AND ARE SUBJECT TO ALL OF THE RISKS AND UNCERTAINTIES INHERENT IN RESOURCE EXPLORATION AND DEVELOPMENT. AS A RESULT, ACTUAL RESULTS MAY VARY MATERIALLY FROM THOSE DESCRIBED IN THE FORWARD- LOOKING STATEMENTS.

 

NOT FOR DISTRIBUTION TO U.S. NEWS WIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES.