Mr. Drew Zimmerman reports

NOBLE PLAINS URANIUM COMPLETES SHIRLEY CENTRAL HISTORICAL DRILL DATABASE, UNLOCKING 341 URANIUM INTERCEPTS

Noble Plains Uranium Corp. has completed the digitization and geological interpretation of the historical drill database at its Shirley Central project in Wyoming's prolific Shirley basin. Using AI-powered (artificial intelligence) computer vision to process 1,211 historical drill holes acquired from Ur-Energy Inc., the company has converted decades-old files and scanned gamma logs into a modern, high-resolution geological model, identifying 341 qualifying uranium intercepts and informing the placement of seven confirmation drill holes designed to fast-track Shirley Central toward a potential mineral resource.

"This is our strategy in action, once again," said Drew Zimmerman, chief executive officer of Noble Plains Uranium. "At Duck Creek, we proved that historical drilling can be converted into a compliant, scalable resource faster and more economically than starting from scratch. At Shirley Central, we are aiming to do it again with over 1,200 historical drill holes, data that would have cost in excess of $6-million (U.S.) to generate through new drilling alone. With 341 qualifying intercepts in clear roll-front clusters, we have been able map out confirmation drill holes. This is disciplined, data-driven exploration and it is exactly the playbook we intend to keep running across our growing Wyoming portfolio."

The Shirley Central property consists of 30 strategically located mineral claims that are directly adjacent to Ur-Energy's producing Shirley mine. Noble Plains first identified a dense concentration of historic drill pads on the Shirley Central ground from historical aerial photographs, a strong indicator of the higher-grade mineralization that drew intensive historic drilling to the property in the first place. The company acquired the underlying raw historical drill data directly from Ur-Energy; however, the data set existed only as old, scanned gamma logs and was not usable in a modern resource estimation workflow.

Turning a legacy paper archive into a modern geological model

Noble Plains engaged Geomorphic AI's purpose-built artificial intelligence and computer vision systems to systematically extract, standardize and analyze the full 1,211-hole data set, accurately extracting gamma-ray traces across multiple historical log formats and converting CPS readings into estimated eU3O8 grades. The result is an integrated visualization platform incorporating maps and 3-D geological modelling, turning a historically unusable paper archive into a modern exploration data set comparable with what the company could otherwise only obtain through a multimillion-dollar drill program of its own.

341 qualifying intercepts define high-grade drill targets

Of the 1,211 historical holes reviewed, 341 intercepts qualified above a cut-off grade of 0.02 per cent eU308 and a minimum thickness of two feet. These 341 intercepts average 0.055 per cent eU308 over an average thickness of 13.7 feet. All intercepts were manually verified by company geologists for accuracy, and multiple nose signatures that are indicative of roll-front uranium systems and associated with higher-grade centres were identified during the review.

More than 57 per cent of these selected intercepts returned grades above 0.05 per cent eU308, underscoring the strength of the mineralization identified across the property. Standout results include a four-foot intercept grading 0.58 per cent eU308 from a depth of 185 to 189 feet in hole TX-2763 and a 6.3-foot intercept grading 0.53 per cent eU308 from a depth of 448.6 to 454.9 feet in hole SX-683.

Seven confirmation holes target the highest-confidence clusters

Building on the results from Geomorphic AI and the company's internal geological review, Noble Plains has selected seven drill locations for a confirmation program focused on two of the most prospective intercept clusters identified, both characterized by the nose features associated with higher-grade uranium accumulation. This targeted approach mirrors the strategy that delivered a hit rate of 90 per cent across the company's 148-hole confirmation program at Duck Creek: Rather than drilling broadly across the property, Noble Plains is placing holes precisely where the historical data indicate the highest probability of success, with the objective of validating the historical data set and advancing Shirley Central toward a compliant mineral resource.

Shirley Central: a strategic location for future ISR (in situ recovery) development

Shirley Central consists of 30 unpatented mineral claims covering 665 acres adjacent to the boundary of Ur-Energy's Shirley basin ISR project, which currently hosts a National Instrument 43-101-compliant measured and indicated resource of 8,816,000 pounds U3O8 at 0.23 per cent, and has started full-scale uranium production operations and transport of uranium-loaded resin to the Lost Creek processing facility.

The project is also bordered by Uranium Energy Corp. (UEC), placing Noble Plains directly between two of the most active U.S. uranium developers.

This strategic position is further reinforced by the non-binding letter of intent announced April 15, 2026, outlining a framework for Ur-Energy to potentially process future uranium-bearing solutions from Shirley Central, providing Noble Plains with a clear line of sight to a low-capital path toward production.

In addition, the company announces that it has granted an aggregate of two million stock options to certain directors, officers and consultants of the company pursuant to its stock option plan. Each option is exercisable to acquire one common share of the company at an exercise price of nine cents per share for a period of five years from the date of grant, being July 8, 2026. The options vest in full on the date of grant. The options were granted in accordance with the terms of the company's stock option plan and the policies of the TSX Venture Exchange. Any shares issued upon the exercise of the options will be subject to a four-month hold period from the date of grant in accordance with the policies of the TSX-V and applicable securities laws. The grant of the options is subject to acceptance by the TSX-V.

About Noble Plains Uranium Corp.

Noble Plains Uranium is a United States-focused uranium exploration and development company advancing a portfolio of high-potential projects amenable to ISR -- the most capital-efficient and environmentally responsible method of uranium extraction. The company's strategy targets historically drilled and underexplored assets in proven jurisdictions, with the objective of rapidly delineating NI 43-101-compliant resources and building a scalable inventory of domestic uranium.

Bradley Parkes, PGeo, vice-president of exploration of Noble Plains Uranium, is the qualified person as defined in NI 43-101, who has read and approved the technical content of this news release.

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