| Vanguard Mining to Acquire Nucleon Uranium  Expanding Uranium Exploration Footprint in Saskatchewan's Athabasca Basin 
 thenewswire.com
 
 Vancouver, BC – TheNewswire - September 10, 2025 – Vanguard Mining Corp. ("Vanguard" or the "Company") (CSE: UUU | OTC: UUUFF | Frankfurt: SL51) ) is pleased to announce that it has entered into a share exchange agreement (the “Definitive Agreement”) among the Company, Nucleon Uranium Ltd. (“Nucleon Uranium”), a private Canadian corporation, and the shareholders of Nucleon Uranium (the “Shareholders”),  pursuant to which the Company will acquire 100% of the issued and  outstanding common shares in the capital of Nucleon Uranium (the “Proposed Transaction”).
 
 The acquisition of Nucleon Uranium is expected to  significantly enhance Vanguard’s uranium portfolio, aligning with the  Company’s strategy of building a diversified pipeline of high-potential  exploration and development assets in North and South America. By  integrating Nucleon Uranium’s  properties and technical expertise, Vanguard aims to strengthen its  positioning in the global uranium market at a time of growing demand for  nuclear energy as a critical component of the clean energy transition.
 
 About Nucleon Uranium
 
 Nucleon Uranium holds seven mineral claims totaling  23,424.90 hectares in Saskatchewan, Canada. These claims are situated in  the heart of the world-class Athabasca Basin — recognized globally as  the premier uranium district. With its exceptionally high-grade  deposits, the Athabasca Basin forms the backbone of Canada’s leadership  in clean nuclear energy supply.
 
 "The acquisition of Nucleon Uranium represents a transformational step for Vanguard Mining," stated David Greenway, President & CEO of Vanguard Mining Corp. "With  seven highly prospective claims in the heart of Saskatchewan’s  Athabasca Basin, strategically positioned alongside industry leaders  such as Atha Energy Corp., CanAlaska Uranium Ltd., and Cameco  Corporation, we are strengthening our footprint in the world’s premier  uranium district. This transaction not only adds scale and geological  potential to our portfolio but also positions Vanguard to capitalize on  the global nuclear renaissance as governments and utilities seek secure,  high-grade uranium supply for the clean energy transition."
 
 Highly Prospective Nucleon Uranium Claims
 
 The newly acquired Nucleon Uranium claims are strategically located in the heart of the Athabasca Basin, surrounded by major uranium companies and deposits:
 
 
 With established regional infrastructure — including road  access, power, and proximity to uranium processing facilities —  combined with proven geology and a dense concentration of world-class  discoveries in direct proximity, Vanguard believes the Nucleon Uranium  claims represent a rare and compelling exploration opportunity. Situated  in the world’s premier uranium district, these claims provide the  Company with exposure to both near-term exploration catalysts and  long-term development potential. Vanguard views this land package as a  cornerstone for building shareholder value as it advances its broader  uranium strategy during a time of unprecedented global demand for  secure, high-grade uranium supply.  West: Near  Fission Uranium’s Patterson Lake South and NexGen Energy’s Arrow  deposits, discoveries that are transforming the global uranium supply  pipeline; as well as active exploration by CanAlaska Uranium Ltd.  
 
  North and East:  Adjacent to active exploration projects from Atha Energy Corp., Denison  Mines, Cameco Corporation, and Orano Canada, underscoring the strong  prospectivity of the Basin.  
 
  Nearby: Historic deposits such as Cluff Lake and Shea Creek highlight the region’s proven uranium endowment.  
 
  Alongside Industry Leaders: Reinforcing the strategic importance of Nucleon Uranium’s land package.  
 
 
 
  Click Image To View Full Size
 
 Figure 1: Nucleon Uranium Claim Map consisting of 23,424.9 Ha in the Athabasca Basin
 
 Transaction Terms
 
 Pursuant to the terms of the Definitive Agreement,  Vanguard Mining Corp. will acquire 100% of the issued and outstanding  common shares of Nucleon Uranium As consideration, the Company will  issue an aggregate of 7,000,000 common shares in the capital of the  Company (the “Consideration Shares”) to the shareholders of Nucleon  Uranium on a pro rata basis. In addition, the Company will make  aggregate cash payments of C$200,000 as directed by the shareholders.
 
 It is anticipated that the Consideration Shares will be  issued pursuant to the Take-Over Bid and Issuer Bid prospectus exemption  set forth in Section 2.16 of National Instrument 45-106 – Prospectus Exemptions and, as such, will not be subject to any statutory restrictions on resale.
 
 Completion of the Proposed Transaction remains subject to customary closing conditions, including but not limited to:
 
 
 There can be no assurance that the Proposed Transaction will be completed as contemplated or at all.  Receipt of all necessary consents and approvals;  
 
  Completion of satisfactory due diligence;  
 
  Accuracy of each party’s representations and warranties as of the closing date; and  
 
  Fulfillment by each party of its covenants and obligations under the Definitive Agreement.  
 
 
 Next Steps
 
 Following the completion of the Proposed Transaction,  Vanguard Mining intends to integrate the Nucleon Uranium claims into its  broader exploration portfolio and initiate a staged exploration program  in Saskatchewan’s Athabasca Basin. Near-term priorities will include  detailed geological review, data compilation, and permitting activities  to prepare for fieldwork. Vanguard also anticipates engaging with  technical advisors and local stakeholders to ensure responsible and  efficient advancement of the projects.
 
 The Company expects the transaction to close in Q4 2025,  subject to the satisfaction of all customary conditions and regulatory  approvals. Upon closing, Nucleon Uranium will become a wholly owned  subsidiary of Vanguard Mining, providing shareholders with direct  exposure to one of the most prospective uranium districts globally.
 
 Positioned for Growth in a Nuclear Renaissance
 
 Global demand for secure, carbon-free baseload energy is  fueling an unprecedented nuclear power resurgence. As governments  implement aggressive energy transition strategies, uranium has  re-emerged as a critical mineral. Saskatchewan’s Athabasca Basin remains  the premier jurisdiction for future uranium supply, and Vanguard is  strategically positioned to capitalize on this nuclear renaissance.
 
 Option Agreement
 
 Vanguard Mining is pleased to announce that it has  entered into a mineral property option agreement with Hilltop Resources  Inc. ("Hilltop"), pursuant to which Hilltop has been granted the sole and exclusive option to acquire a 100% interest in the Pinchi Lake Nickel Project (“Pinchi”), located in British Columbia, and the Georgia Lake Project (“Georgia Lake”), located in Ontario (together, the “Properties”).
 
 Under the terms of the agreement, Hilltop will provide total consideration consisting of:
 
 
 Upon completion of these obligations, Hilltop will earn a  100% undivided interest in the Properties, subject to a 0.5% net  smelter return (“NSR”)  royalty payable to Vanguard. In addition, the Pinchi claims remain  subject to an existing 2% underlying NSR royalty. Hilltop will act as  operator of the Properties during the option period, and all exploration  expenditures will be credited as assessment work.  Cash Payments – $30,000 in cash to Vanguard, with $15,000 payable upon execution of the agreement and $15,000 within 12 months.   
 
  Share Issuances – 500,000 common shares of Hilltop, issued to Vanguard upon signing.   
 
  Assessment Work – Hilltop will assume responsibility for  all required property payments and assessment work to maintain the  Properties in good standing.  
 
 
 Qualified Person
 
 The scientific and technical information contained in  this news release has been reviewed and approved by Lawrence Segerstrom,  a consulting geologist who is a “Qualified Person” as such term is  defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43- 101”).
 
 About Vanguard Mining Corp.
 
 Vanguard Mining Corp. is a Canadian mineral exploration  company focused on the discovery and development of high-value strategic  minerals. The Company is currently advancing uranium exploration  projects in the United States and Paraguay, with a focus on identifying  and developing assets critical to the global energy transition. Vanguard  is committed to responsible exploration and value creation through the  acquisition and advancement of highly prospective uranium properties.
 
 On Behalf of the Board of Directors
 
 “David Greenway” David Greenway, CEO
 
 For further information, please contact:
 
 Vanguard Mining Corp.
 
 Brent Rusin
 
 Phone: +1 672-533-0348
 
 E-Mail: brent@vanguardminingcorp.com
 
 Website: vanguardminingcorp.com
 
 Neither the Canadian Securities Exchange nor its  Regulation Services Provider (as that term is defined in the policies of  the CSE) accepts responsibility for the adequacy or accuracy of this  release.
 
 Disclaimer for Forward-Looking Information
 
 This news release may contain certain forward-looking statements and forward-looking information (collectively, “Forward-Looking Statements”)  within the meaning of the applicable Canadian and U.S. securities laws.  All statements, other than statements of historical fact, included  herein including, without limitation, statements with respect to the  Offering and the anticipated use of the proceeds therefrom, are  forward-looking statements. When or if used in this news release, the  words “anticipate”, “believe”, “estimate”, “expect”, “target, “plan”,  “forecast”, “may”, “schedule” and similar words or expressions identify  forward-looking statements or information. Such statements represent the  Company's current views with respect to future events and are  necessarily based upon a number of assumptions and estimates that, while  considered reasonable by the Company, are inherently subject to  significant business, economic, competitive, political and social risks,  contingencies and uncertainties. Many factors, both known and unknown,  could cause results, performance, or achievements to be materially  different from the results, performance or achievements that are or may  be expressed or implied by such forward-looking statements. The Company  does not intend, and does not assume any obligation, to update these  forward-looking statements or information to reflect changes in  assumptions or changes in circumstances or any other events affecting  such statements and information other than as required by applicable  laws, rules and regulations.
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