Mr. Drew Zimmerman reports

NOBLE PLAINS URANIUM REPORTS HIGHEST-GRADE INTERCEPTS AS CONFIDENCE GROWS IN SCALE OF DUCK CREEK TREND

Noble Plains Uranium Corp. has released results from the next 20 drill holes completed at its flagship Duck Creek project in Wyoming's Powder River basin. Results from a total of 122 holes have been reported since Dec. 1, 2025.

The strongest results of the batch came in hole 25-15-115 returning 20.0 feet of 0.207 per cent equivalent uranium, including 2.0 feet grading 1.05 per cent equivalent uranium, while hole 25-16-122 intersected 17.5 feet of 0.170 per cent equivalent uranium, including 2.0 feet at 0.875 per cent equivalent uranium. Both intercepts exceed the highest grades previously reported in the program and occur within the same continuous roll-front system being defined across the property.

"These new program-high intercepts, alongside the consistency we're seeing across the drilling, show that Duck Creek is not only continuous but improving in quality. This is how a meaningful uranium asset takes shape," said Drew Zimmerman, chief executive officer of Noble Plains Uranium. "As we advance toward our first compliant resource this spring, we are building toward meaningful pounds in the ground with a potential pathway towards production in a supply constrained U.S. uranium market."

As drilling advances toward the northern end of the company's planned program on the trend, the company continues to intersect consistent uranium mineralization while also recording two intercepts that exceeded the highest grades previously reported in the program. These results not only confirm the strength and continuity of the roll-front system along strike, but also provide strong geological support for the uranium trend to continue onto the company's recently staked northern extension of the property toward the established uranium resources held by Uranium Energy Corp.

"Seeing higher grades emerge as we move north along the trend is very significant," said Paul Cowley, PGeo, chief operating officer of Noble Plains Uranium. "It tells us the roll-front system is not only laterally continuous, but also capable of developing higher-grade centres within that continuity. These latest holes were drilled toward the north end of historical trend, and the results are providing strong evidence that the system persists and potentially strengthens to the north where we have recently expanded our land package."

Next steps and outlook

With each successive batch of results, Duck Creek is demonstrating the key characteristics of a scalable in situ recovery uranium project: continuity, reproducibility and now increasingly higher-grade zones within the system. As drilling progresses northward, the results are directly supporting the company's decision to expand its land position to cover over five miles of the trend, materially increasing the potential scale of uranium mineralization on project as the company moves toward its first resource in compliance with National Instrument 43-101 standards.

Duck Creek remains central to Noble Plains' strategy of building a growing inventory of United States-based uranium pounds in known production areas that is positioned to benefit from a strengthening uranium price environment and increasing focus on domestic critical mineral supply.

Continuing drill program overview

The Duck Creek drill program, permitted for up to 37,400 feet across approximately 150 holes, is structured around three key objectives.

1. Confirmation of historic data -- 16 holes

To verify 1,317 historic intercepts in the Wasatch formation and support a uranium resource prepared in accordance with National Instrument 43-101 standards.

2. Expansion of shallow mineralization approximately 130 holes

Designed to extend mineralized boundaries and target higher-grade areas along the three-mile-long Wasatch roll-front corridor.

3. First ever drilling of the Fort Union formation approximately 10 holes

For the first time, Noble Plains will drill to approximately 1,200 feet to test the Fort Union, where neighbouring projects host the majority of their compliant resources.

The company filed a technical report, available on SEDAR+ under the company's profile, on the Duck Creek project on Aug. 14, 2025, which outlined an exploration target ranging from 2.37 million tons at 0.03 per cent triuranium octoxide to 5.45 million tons at 0.05 per cent triuranium octoxide. These ranges were based on assumed grade-thickness values of 0.2 for the lower case and 0.598 for the upper case. The exploration target is conceptual in nature and does not meet the standards to be classified as mineral resources or mineral reserves, and there is no certainty that the exploration target will be realized.

The drilling is being done by Tyler Exploration Inc. utilizing a truck-mounted mud rotary rig and the geophysical logging by Hawkins CBM Logging, both of Wyoming. Bradley Parkes, PGeo, vice-president, exploration, and Paul Cowley, PGeo, chief operating officer for Noble Plains, supervised the drilling activities.

About Noble Plains Uranium Corp.

Noble Plains is a United States-focused uranium exploration and development company advancing a portfolio of high-potential projects amenable to in situ recovery -- the most capital efficient and environmentally responsible method of uranium extraction. Its strategy targets historically drilled and underexplored assets in proven jurisdictions, with the objective of rapidly delineating National Instrument 43-1010compliant resources and building a scalable inventory of domestic uranium.

We seek Safe Harbor.