Blue Star's Airborne Geophysical Program Highlights Compelling Critical Mineral Targets

13 November 2025

Vancouver, British Columbia--(Newsfile Corp. - November 13, 2025) - Blue Star Gold Corp. (TSXV: BAU) (OTCQB: BAUFF) (FSE: 5WP0) ("Blue Star" or the "Company"), a leading explorer in Canada's North, is pleased to announce the acquisition of new high-resolution SkyTEM airborne electromagnetic (AEM) and magnetic survey data, which has highlighted several compelling critical mineral targets on its Roma Project located in the West Kitikmeot Region, Nunavut (Figures 1 and 2).

The Roma Project covers portions of the High Lake Volcanic Belt, an Archean-aged greenstone belt endowed with copper, zinc and gold-rich Volcanogenic Massive Sulphide (VMS) deposits. Blue Star's current focus area is situated immediately adjacent to the High Lake Mining Leases, and the new SkyTEM dataset has identified several discrete AEM anomalies within 3 km of the existing High Lake deposit. The High Lake deposit consists of three separate mineralised zones that combined represent an Indicated Resource of 7.9 Mt grading 3% Cu, 3.5% Zn, 0.32% Pb, 83 g/t Ag, and 1.3 g/t Au, and an Inferred Resource of 6 Mt grading 1.8% Cu, 4.3% Zn, 0.41% Pb, 84 g/t Ag, and 1.3 g/t Au (MMG - Mineral Resource and Ore Reserves Statement 2025).

Survey Highlights

  • A total of 2,450 hectares (242.6 km) of data was collected using the deep seeing SkyTEM 306HP system across two key properties - the Roma MEA and Auma target areas
  • Multiple AEM anomalies were defined within 3 km of the High Lake deposit's 'West Zone' massive sulphide lens
  • The AEM anomalies coincide with areas of known VMS-style surface mineralization and hydrothermal alteration, including pronounced sodium depletion
  • At the Auma gold target, the survey confirmed the geophysical expression of known mineralized trends and outlined additional conductive and magnetic targets extending 1.4 km along strike

"The new SkyTEM data has refined our understanding of the geology at both the Roma critical mineral targets and Auma gold targets," said Grant Ewing, CEO of Blue Star Gold. "The conductivity and magnetic responses define several new targets consistent with VMS-style mineralization near the High Lake deposit, as well as extensions of gold mineralisation trends at Auma. These results support our ongoing efforts to advance both critical mineral and gold discoveries across our highly prospective Nunavut projects."

Roma Critical Metal Project Details: AEM Anomalies Near Historic Mineralization

The Roma project SkyTEM data has delineated a series of discrete electromagnetic (EM) anomalies within favourable volcanic stratigraphy. These anomalies are spatially coincident with known sulphide mineral showings and are interpreted as potential extensions or repetitions of the High Lake mineralized horizon. The three highest priority targets include the Stu, West West, and South zones, with a fourth, moderate priority zone at Cairo also warranting follow-up. No known drill holes have tested the newly delineated anomalies.

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