Noble Plains Uranium Expands Shirley East Project IN Wyoming

NOBLE PLAINS URANIUM EXPANDS SHIRLEY EAST PROJECT IN WYOMING

July 23, 2025 – Vancouver, British Columbia – Noble Plains Uranium Corp. (TSX-V: NOBL, OTCQB: NBLXF ,

FSE: INE0) (“Noble Plains” or the “Company”) is pleased to announce that it has staked an additional 16

mineral claims covering approximately 320 acres on the eastern side of its existing Shirley East Project in

Wyoming’s Shirley Basin.

This strategic expansion increases Noble Plains’ footprint in one of the most historically productive and

actively resurging uranium districts in the United States. The newly staked claims are located directly

adjacent to lands held by Uranium Energy Corp (UEC) and are underpinned by historical aerial data showing

over 174 drillholes. The tight clusters of past drilling activity —strongly correlated with zones of higher

uranium mineralization in the 1980’s, are the key target areas of the newly staked projects.

“This staking expands our presence in a district that has already proven its value, ” said Paul Cowley, CEO of

Noble Plains Uranium. “We identified this area through historical aerial datasets that revealed

concentrated legacy drill patterns. These patterns are closely associated with higher mineralized zones and

staking these claims allows us to consolidate a highly prospective area next to a major uranium player. ”

Figure 1 – Newly Staked claims with Historical Drill hole locations

The Shirley Basin produced over 51 million pounds of uranium between 1960 and 1992 and is now seeing a

resurgence in development and investment. By extending the Company’s existing project area, Noble Plains

not only strengthens its land position but also unlocks exploration efficiencies —leveraging permitting,

logistics, and future resource delineation across a broader claim package.

This expansion is consistent with the Company’s focused strategy: to build a pipeline of uranium pounds in

the ground by targeting brownfield and historically mineralized projects in top-tier U.S. jurisdictions with ISR

(In-Situ Recovery) potential.

Noble Plains’ Shirley Basin holdings now include the Shirley Central and the expanded Shirley East project

growing the companies footprint with both near -term drill targets and long -term growth potential. The

Company is actively advancing multiple properties across Wyoming’s Powder River and Shirley basins, with

field programs and permitting underway for planned drilling in 2025.

On Behalf of the Board of Directors,

“Paul Cowley” , CEO

“Drew Zimmerman” , President

For further information, please contact: Drew Zimmerman at (778) 686-0973

Website: www.nobleplains.com

This news release includes certain forward -looking statements as well as management's objectives,

strategies, beliefs and intentions. Forward looking statements are frequently identified by such words as

"may" , "will" , "plan" , "expect" , "anticipate" , "estimate" , "intend" and similar words referring to future events

and results including the Company’s ability to strengthen market engagement and build long -term

shareholder value and the anticipated enhancement of governance and strategic capabilities through the

appointment of Ms. Meleger . Forward -looking statements are based on the current opinions and

expectations of management. All forward -looking information is inherently uncertain and subject to a

variety of assumptions, risks and uncertainties, including the speculative nature of mineral exploration and

development, fluctuating commodity prices, competitive risks and the availability of financing, as described

in more detail in our recent securities filings available at www.sedarplus.ca. Actual events or results may

differ materially from those projected in the forward -looking statements and we caution against placing

undue reliance thereon. We assume no obligation to revise or update these forward -looking statements

except as required by applicable law.

Neither the TSX Venture Exchange nor its Regulations Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of this release.