| Purepoint Commences First-Pass Drilling at District-Scale Tabbernor Project 
 newsfilecorp.com
 
 September 30, 2025 6:30 AM EDT | Source:  Purepoint Uranium Group Inc.
 
 Toronto, Ontario--(Newsfile Corp. - September 30, 2025) - Purepoint Uranium Group Inc. (TSXV: PTU) (OTCQB: PTUUF) ("Purepoint" or the "Company")  today announced the launch of its inaugural drill program at the  100%-owned Tabbernor Project, located on the southeastern edge of  Saskatchewan's Athabasca Basin. The 1,500-metre program will test five  drill targets distributed across two of the three high-priority areas  defined within a 60-kilometre-long corridor of graphitic conductors.  These targets were identified following extensive geophysical and  structural interpretation work ( see Purepoint News Release, February 24, 2025).
 
 "Tabbernor  hosts a highly underexplored structural corridor in the Basin district  with scale, structure, and proximity to known mineralization," said  Chris Frostad, President and CEO of Purepoint. "We've spent the past two  years systematically preparing to test this largely untouched corridor,  and this program marks our first step in defining its potential. Our  goal is to prioritize areas for more focused drilling in the years  ahead."
 
 Highlights
 
 
 The  Tabbernor Project spans more than 50,000 hectares and is positioned  along the northern extension of the Tabbernor Fault System—an extensive  crustal break known to control gold mineralization to the south and  uranium occurrences in the Basin. Despite the project's structural  advantages and proximity to uranium-bearing zones, the area has never  been properly drill tested for uranium.District-scale structural/electromagnetic corridor:  Approximately 100 km of electromagnetic (EM)conductors, known to be  locally graphitic, have been mapped within the project through extensive  airborne and ground geophysics.
 
Five targets to be tested across a 1,500-metre program—spanning multiple structural domains.
 
First-pass drilling conducted on the project, now supported by airborne VTEM, MobileMT, gravity, and soil geochemical anomalies.
 
Strong uranium pathfinders identified by Purepoint in soil sampling along the same structural corridors as nearby mineralized intercepts.
 
 
 Over the past four years,  Purepoint has advanced the project through comprehensive exploration  programs, including airborne VTEM, MobileMT and gravity surveys, and  structural mapping. These efforts identified an extensive stretch of  graphitic conductors with coincident gravity and magnetic lows—key  markers for alteration halos that can be associated with uranium  deposits.
 
 
  
 Figure 1: Enhanced Vertical Gravity Results from 2024 Airborne FALCON Gravity Survey over the Tabbernor Project
 
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 Figure 2: Location of the Tabbernor Project
 
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 Tabbernor Project
 The  100%-owned Tabbernor Project is strategically positioned along three  major trends of the Tabbernor Fault System, a deep seated,  1,500-kilometre crustal shear system that runs north through the  Athabasca Basin. The system not only hosts over 80 historic mines and  gold occurrences but also crosscuts the Basin's mine trend aligning  itself with 8 of the Basin's largest uranium discoveries.
 
 The  Tabbernor project is roughly 40 kilometres south of Cameco's Eagle Point  deposit and is comprised of 23 contiguous mineral claims covering an  area of 51,670 hectares. The original three north-south claim groups  that covered Tabbernor structures have now been expanded to include a  strong east-northeast trending corridor of conductive rocks further  enhancing the project's exploration potential.
 
 Purepoint's current  focus is the 60-kilometre graphitic corridor that cuts through the  project, specifically, areas with gravity low responses and showing  evidence of structural complexity. Notably, recent drilling on an  adjacent property intersected significant mineralization associated with  the central Tabbernor graphitic structure (see CanAlaska Uranium Ltd.  press release, September 27, 2023).
 
 Tabbernor Fault System
 The  Tabbernor Fault System (TFS) is a wide, >1,500 kilometre  geophysical, topographic, and geological structural zone that trends  approximately northward along Saskatchewan's eastern boundary.  Purepoint's research has shown that although none of the province's  currently known uranium deposits have been linked to the north-south  trending TFS, localized shear zones hosting uranium mineralization may  have an associated north-south structural component.
 
 Reactivation  of the TFS may have coincided with the age of formation of large uranium  deposits in the Athabasca Basin (Davies, 1998). Davies also concluded  that structural similarities between the TFS and mineralized areas  suggest that the fault system may have had a control on the location of  mineralization. More specifically, he considered that several deposits,  such as the Sue, Midwest, Dawn Lake and Rabbit Lake all demonstrate a  north-south control and strong Tabbernor-like characteristics.
 
 Reference:
 Davies,  J.R. (1998): The origin, structural style, and reactivation history of  the Tabbernor fault zone, Saskatchewan, Canada; Master's thesis, McGill  University, Montreal, Quebec, 105p.
 
 About Purepoint
 Purepoint  Uranium Group Inc. (TSXV: PTU) (OTCQB: PTUUF) is a focused explorer  with a dynamic portfolio of advanced projects within the renowned  Athabasca Basin in Canada. Highly prospective uranium projects are  actively operated on behalf of partnerships with industry leaders  including Cameco Corporation, Orano Canada Inc. and IsoEnergy Ltd.
 
 Additionally,  the Company holds a promising VMS project currently optioned to and  strategically positioned adjacent to and on trend with Foran  Corporation's McIlvenna Bay project. Through a robust and proactive  exploration strategy, Purepoint is solidifying its position as a leading  explorer in one of the globe's most significant uranium districts.
 
 Scott  Frostad BSc, MASc, PGeo, Purepoint's Vice President, Exploration, is  the Qualified Person responsible for technical content of this release.
 
 For more information, please contact:
 Chris Frostad, President & CEO
 Phone: (416) 603-8368
 Email:  cfrostad@purepoint.ca
 
 For additional information please visit our new website at api.newsfilecorp.com,  our Twitter feed:  @PurepointU3O8 or our LinkedIn page  @Purepoint-Uranium.
 
 Neither  the Exchange nor its Regulation Services Provider (as that term is  defined in the policies of the Exchange) accepts responsibility for the  adequacy or accuracy of this Press release.
 
 Cautionary Statement Regarding Forward-Looking Information
 
 This  press release contains "forward-looking information" within the meaning  of applicable Canadian securities legislation. Generally,  forward-looking information can be identified by the use of  forward-looking terminology such as "plans", "expects" or "does not  expect", "is expected", "budget", "scheduled", "estimates", "forecasts",  "intends", "anticipates" or "does not anticipate", or "believes", or  variations of such words and phrases or state that certain actions,  events or results "may", "could", "would", "might" or "will be taken",  "occur" or "be achieved". This forward-looking information may relate to  additional planned exploration activities, including the timing thereof  and the anticipated results thereof; and any other activities, events  or developments that the companies expect or anticipate will or may  occur in the future.
 
 Forward-looking statements are  necessarily based upon a number of assumptions that, while considered  reasonable by management at the time, are inherently subject to  business, market and economic risks, uncertainties and contingencies  that may cause actual results, performance or achievements to be  materially different from those expressed or implied by forward-looking  statements. Such assumptions include, but are not limited to, that  planned exploration activities are completed as anticipated; the  anticipated costs of planned exploration activities, the price of  uranium; that general business and economic conditions will not change  in a materially adverse manner; that financing will be available if and  when needed and on reasonable terms; and that third party contractors,  equipment and supplies and governmental and other approvals required to  conduct the Joint Venture's planned activities will be available on  reasonable terms and in a timely manner. Although each of IsoEnergy and  Purepoint have attempted to identify important factors that could cause  actual results to differ materially from those contained in  forward-looking information, there may be other factors that cause  results not to be as anticipated, estimated or intended. There can be no  assurance that such information will prove to be accurate, as actual  results and future events could differ materially from those anticipated  in such statements. Accordingly, readers should not place undue  reliance on forward-looking information.
 
 Such statements  represent the current views of IsoEnergy and Purepoint with respect to  future events and are necessarily based upon a number of assumptions and  estimates that, while considered reasonable by IsoEnergy and Purepoint,  are inherently subject to significant business, economic, competitive,  political and social risks, contingencies and uncertainties. Risks and  uncertainties include but are not limited to the following: the  inability of the Joint Venture to complete the exploration activities as  currently contemplated; uncertainty of additional financing; no known  mineral resources or reserves; aboriginal title and consultation issues;  reliance on key management and other personnel; actual results of  technical work programs and technical and economic assessments being  different than anticipated; regulatory determinations and delays; stock  market conditions generally; demand, supply and pricing for uranium; and  general economic and political conditions. Other factors which could  materially affect such forward-looking information are described in the  risk factors in each of IsoEnergy's and Purepoint's most recent annual  management's discussion and analyses or annual information forms and  IsoEnergy's and Purepoint's other filings with the Canadian securities  regulators which are available, respectively, on each company's profile  on SEDAR+ at  www.sedarplus.ca.  IsoEnergy and Purepoint do not undertake to update any forward-looking  information, except in accordance with applicable securities laws.
 
 
  SOURCE:  Purepoint Uranium Group Inc. |