Strathmore Expands Agate Project With Strategic Claim Staking

Kelowna, British Columbia--(Newsfile Corp. - December 15, 2025) - Strathmore Plus Uranium Corporation (CSE: SUU) (OTCQB: SUUFF) ("Strathmore" or "the Company") is pleased to announce the expansion of the Agate Project with the addition of 24 staked mining claims. Agate is in the Shirley Basin Uranium District, central Wyoming, a burgeoning In-situ uranium producing area.

Wyoming is the leading uranium producer in the U.S., with over 70 years of mining and over 250m lbs. of uranium produced. Cameco, Energy Fuels, UEC, UR-Energy and Encore all have development projects in the Shirley Basin and Gas Hills area of Wyoming.

The Strathmore claims were staked to the north of the currently permitted Agate exploration area, where Kerr-McGee Corporation historically explored in the 1970s, defining several mineralized trends. Strathmore's technical team will be using Kerr-Mcee's historical data to pinpoint 2026 drilling. This summer's drill program continued to expand the Agate mineralization, with mineralization open in all directions. Strathmore's Agate Property benefits from mineralization that extends from adjacent lands formerly operated by major historic producers such as Kerr McGee, Getty, and Utah International/Pathfinder Mines.

John DeJoia, PGeo, commented, "Momentum continues to build at Agate. Our land position is expanding on the strength of highly successful exploration, with 95% of drill holes intersecting mineralization. These results-combined with activity on neighboring properties and UR-Energy's initiation of plant construction-further validate our expectations for the Agate property. Located in a premier ISR district, Agate is yielding mineralization that aligns with a proven development and production model."

2025 Highlights:

• Exploration Drilling: in 2025, Strathmore completed 45 drill holes, including 5 cored holes on the Project. The drilling expanded the northern, lower sand trend by over 1,200 feet east, resulting in an open-ended (west-to-east) trend nearly 1 mile in length. In addition, the drilling expanded the southern, middle sand trend by 500 feet to nearly 1,300 feet in length (open-ended to the south and north). The 2026 drilling will target expanding the northern trend east into untested ground, and the southern trend further north where it could merge with the area of the northern trend resulting in the potential for multiple layers of mineralization.
• Expansion of Project Area: Strathmore staked an additional 39 mining claims on the Project, including the 24 claims reported above. The Company now wholly owns 124 claims at Agate, totaling ~2,560 acres. The new claims will be incorporated into the area currently permitted.
• University of Wyoming Study: UW continued their geophysical and groundwater studies at the Project over the past year. The University of Wyoming received an additional US$120,000 to expand their research for more ground at the Project and to test deeper uranium mineralized deposits, including at Strathmore's Beaver Rim Project located in the Gas Hills Uranium District in Wyoming.

2026 Planned Activities: