Blue Star Updates its Ulu Gold Project Mineral Resource Estimate

Vancouver, British Columbia--(Newsfile Corp. - May 21, 2026) - Blue Star Gold Corp. (TSXV: BAU) (OTCQB: BAUFF) (FSE: 5WP0) ("Blue Star" or the "Company") announces an update to the Company's Mineral Resource Estimate ("MRE") for the Ulu Gold Project (the "Project") in the High Lake Belt, West Kitikmeot Region, Nunavut, Canada. The MRE conceptualizes potential open-pit and underground approaches to the Mineral Resource located within 1,500 metres of the proposed Grays Bay Road Project (Figure 1).