Mr. Brooke Clements reports

NORTH SHORE URANIUM SIGNS EXPLORATION AGREEMENT WITH THE ENGLISH RIVER FIRST NATION

North Shore Uranium Ltd. has executed an exploration agreement with the English River First Nation (ERFN) in Saskatchewan. The agreement outlines a number of areas of collaboration between the ERFN and the company at its Falcon property at the eastern margin of the Athabasca basin in Northern Saskatchewan.

The ERFN is a first nation with its main reserve Wapachewunak Saskatchewan, located approximately 200 kilometres southwest of Falcon. ERFN's ancestral territory covers approximately 75,000 square kilometres of north-central Saskatchewan. Traditionally, people of the ERFN are known as the People of the Great River, referencing the Churchill River. The ERFN prides itself on being guided by ancestral traditions and the knowledge of their elders while being a partner with industry and governments.

About Falcon

To date, North Shore has identified 36 uranium targets at Falcon. These targets are associated with electromagnetic (EM) conductor anomalies which are often upgraded by other favourable geophysical and structural features. They were selected based on the analysis and interpretation of multiple data sets by North Shore and its consultants. As reported on May 16, 2024, the company discovered near-surface uranium mineralization at two drill targets, P03 and P08 in an area that had never seen drilling. In a Feb. 27, 2025, news release, North Shore stated that its near-term priority is to assess the potential for an economic uranium deposit in the southeastern portion of the property by evaluating priority near-surface EM targets in the South priority and South Walker areas.

Falcon is located approximately 30 km east of the active Key Lake uranium mill and former mine at the eastern margin of the Athabasca basin in Saskatchewan. The mill processes uranium ore from the McArthur River mine, one of two producing uranium mines in Canada. Between 1983 and 2002, Key Lake Mine produced a total of 209.9 million pounds (lb) of U3O8 (triuranium octoxide) at an average grade of over 2.0 per cent. The uranium discovery potential at Falcon is significant and includes shallow basement-hosted unconformity-style and pegmatite-hosted mineralization. The property has seen limited modern exploration programs and there are a number of unexplained uranium occurrences.

Brooke Clements, president and chief executive officer of North Shore, stated: "We believe that Saskatchewan's Athabasca basin is the best jurisdiction in the world for uranium exploration and development. North Shore places a priority on establishing positive relationships with communities near its activities. We are proud to establish an alliance with the English River First Nation and look forward to a long, mutually beneficial relationship." Geologic information from the Saskatchewan database, EM conductors from Saskatchewan database and North Shore interpretation, targets from North Shore interpretation, claim acquired by the company in March, 2025, outlined in red.

Next steps

North Shore will continue prioritizing targets at Falcon in pursuit of maximizing the chances of encountering economic uranium mineralization in its next drill program. As currently planned, that drill program would initially focus on several targets in the South priority area of Zone 1 and the South Walker area of Zone 2. Additional updates on the company's target prioritization efforts will be provided on a continuing basis.

Background information

Falcon consists of 15 mineral claims; four of the claims comprising 12,791 hectares are 100-per-cent-owned by the company and the remaining 11 claims totalling 36,258 hectares are subject to an option agreement with Skyharbour Resources Ltd. Under the terms of the option agreement, North Shore has the option to earn up to a 100-per-cent interest in the claims by completing certain payments, exploration work and other commitments by October, 2026.

About North Shore Uranium Ltd.

The nuclear power industry is in growth mode as more nuclear power will be required to meet the world's ambitious CO2 (carbon dioxide) emission-reduction goals and the needs of new power-intensive technologies like AI (artificial intelligence). In this environment, new discoveries of economic uranium deposits will be very valuable, especially in established uranium-producing areas like Saskatchewan. The near-term business objective of North Shore is to become a major force in exploration for economic uranium deposits in North America with emphasis on the eastern margin of Saskatchewan's Athabasca basin, a Tier 1 jurisdiction for discovering new mineable high-grade uranium deposits. The company is working to achieve this goal by conducting exploration programs at its Falcon and West Bear properties and by evaluating opportunities to complement its portfolio of uranium properties. North Shore went public in November, 2023, and its experienced team includes uranium experts and mining industry professionals.

Qualified person

Brooke Clements, MSc, PGeol, a qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects and the president and chief executive officer of North Shore, has reviewed and approved the scientific and technical disclosure in this press release.

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