North Shore Uranium Begins Drilling at Rio Puerco Project in New Mexico

About this update from North Shore Uranium Ltd

VANCOUVER, BC / ACCESS Newswire / June 4, 2026 / North Shore Uranium Ltd. (TSX-V:NSU) (OTCQB:NSURF) ("North Shore" or the "Company") is pleased to report that it has commenced its first drill program at its Rio Puerco uranium project in the Grants Uranium District of northwestern New Mexico ("Rio Puerco" or the "Project"). To date, the Company's drill contractor Harris Exploration Drilling and Associates has completed a total of three rotary drill holes totaling 625 m (2,050 ft.). North Shore plans to drill up to 26 holes totaling approximately 5,975 m (19,600 ft.). The main objective of the program is to begin validating and further evaluating historical exploration data generated by the Kerr-McGee Mining Corporation ("Kerr-McGee") in the 1960s and 1970s. Each of the sites selected for drilling is a "twin" of a rotary hole drilled by Kerr-McGee in the 1970s. Details of the 2026 drill program, uranium mineralization and work history at Rio Puerco were summarized by the Company on April 9, 2026. As announced on May 26, 2026, the Company received approval of its Minimal Impact Exploration Operation Permit from the state of New Mexico and its Notice of Intent to conduct mineral exploration activities from the Bureau of Land Management in May. Brooke Clements, President and CEO of North Shorem stated: "We are excited to see the drill turning at Rio Puerco and the program running smoothly. The data we acquire from this program will help us do a detailed assessment of the uranium mineralization at the Project. With its rich uranium mining history and an abundance of uranium resources, we think that New Mexico has the potential to become a leader in the USA's push to produce more uranium in the future. On June 2, Urenco, one of two uranium enrichment facilities in the USA and the largest, located in New Mexico, announced a major expansion." Drill hole RP-26-18-640 at Rio Puerco on May 30, 2026. QUALIFIED PERSON Mr. Brooke Clements, MSc, P.Geol., a Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects and the President and CEO of North Shore, has reviewed and approved of the scientific and technical disclosure in this press release. ABOUT NORTH SHORE The nuclear power industry is undergoing increased development to meet CO2 emission-reduction goals and the needs of new power-intensive technologies like AI. In thi...

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