Mr. Grant Ewing reports

BLUE STAR ACQUIRES HISTORICAL DATASET AND CONFIRMS CU-RICH VMS MINERALIZATION AT SAND LAKE PROSPECT

Blue Star Gold Corp. has acquired a substantial historical data set covering the Sand Lake prospect within the Roma project. The data set includes ground electromagnetic (EM) surveys, borehole EM data and geological information from historical drilling that intersected stringer to massive sulphide mineralization associated with a copper-rich volcanogenic massive sulphide (VMS) system.

The Sand Lake target is located approximately 12 kilometres north of the High Lake VMS deposits within the same volcanic stratigraphy of the High Lake belt, West Kitikmeot region, Nunavut. The area is located less than one kilometre from the proposed road route of the Grays Bay Road and Port project, part of the Arctic security corridor proposed to connect Yellowknife, NWT, to the Arctic coast. In March, Prime Minister Carney referred the proposed project to the federal Major Projects Office (West Kitikmeot Resources news release dated March 12, 2026). The office was created to fast track infrastructure projects that are deemed to be of national importance.

Highlights

• Acquisition of extensive historical data set includes five ground EM surveys (UTEM and PROTEM), borehole EM from 17 drill holes, and geological and geochemical data from 29 historical drill holes;
• Best historical intercepts of 21 metres of 2.71 per cent copper and 6.3 metres of 5.28 per cent copper (Table 1);
• Mineralized horizon interpreted to extend approximately 530 metres along strike;
• Reported mineralization includes copper, zinc and precious metals;
• 3-D plate modelling of historical EM conductors to refine exploration targets is under way.

"The Sand Lake data set provides a strong foundation for advancing a copper-rich VMS system with clear indications of scale," said Grant Ewing, chief executive officer of Blue Star. "We are prioritizing the integration of electromagnetic and mineralization data through 3-D modelling to better define the system's geometry and support targeted follow-up drilling. The company believes the project has the potential to complement its existing high-grade gold resource while also indicating the presence of a broader, camp-scale VMS system."

Sand Lake exploration target

Based on compilation of the local geology and the historical drilling and geophysical data sets, the company has completed a preliminary internal assessment of the scale potential of the Sand Lake mineralized system. This review, which incorporates historical drill intersections, interpreted strike extent and approximate thickness of the mineralized horizon, suggests a conceptual exploration target of three million to five million tonnes with a potential grade range of 2.3 per cent to 3.6 per cent copper equivalent.

The exploration target was derived by modeling the identified massive sulphide, semi-massive sulphide and stringer mineralization as evidenced by the historical drill intercepts in the exploration target area along the strike of coincident electromagnetic anomalies. The volume of the modeled areas determines the potential tonnage statement in the exploration target. The grade range of the exploration target was determined with consideration to the drill results within the modelled exploration target area and consideration of the geological setting proximal to the established mineral resource estimations in the nearby High Lake deposits, where tonnages and grades in the various mineralized lenses have similar ranges (MMG, 2025). The potential quantity and grade of the Sand Lake exploration target is conceptual in nature and is based on previous drill results that defined the approximate length, thickness, depth and grade. There has been insufficient exploration to define a mineral resource, and the company cautions that there is a risk further exploration will not result in the prospect being delineated as a mineral resource.

Historical exploration data set

The newly acquired data set includes three UTEM and two PROTEM ground EM surveys, borehole EM data from 17 historical drill holes, and geological and mineralogical information from 29 drill holes completed between 2003 and 2008. The historical ground EM surveys were originally completed in 2005 to follow-up extensive airborne EM anomalies occurring under Sand Lake (Robertson, 2006). Historical drilling completed between 2003 and 2008 tested conductors identified in both the airborne and ground EM data. Bore hole EM surveys were conducted in 17 of the 29 drill holes to help identify off-hole conductive responses that may represent nearby sulphide mineralization not intersected by drilling.

Drilling intersected zones of stringer to massive sulphide mineralization hosted within felsic volcanic rocks, along with strong chlorite and sericite alteration, typical of VMS feeder zones. The mineralized horizon is interpreted to extend for approximately 530 metres along strike with a mean true thickness of approximately six metres. Sulphide lenses associated with other deposits in the High Lake greenstone belt commonly form steep-west-dipping bodies. The West zone lens of the High Lake deposit, reaches 275 metres in strike length, extending about 900 metres down dip and is up to 40 metres thick. Reported copper grades from historical drilling within the Sand Lake sulphide zone range between 1.5 per cent and 5.7 per cent Cu, with associated zinc and precious metals (see Table 1).

Historical sampling, drilling and geophysical data in the acquired data set and documented within the references appears to have followed industry standards as accepted at the time of the work; the company has not yet independently verified the historical data.

Darren Lindsay, PGeo, and vice-president of exploration for Blue Star, is a qualified person under National Instrument 43-101, and has reviewed and approved the technical information contained in this news release.

About Blue Star Gold Corp.

Blue Star Gold is a mineral exploration and development company focused on Nunavut, Canada. The company controls over 420 square kilometres of highly prospective and underexplored mineral properties in the High Lake greenstone belt. Its principal assets include the Ulu gold project -- comprising the Ulu mining lease and Hood River property, and the Roma and Auma projects. The Ulu mining lease hosts the high-grade Flood zone gold deposit, and the company's broader land package contains numerous high-priority gold and critical mineral targets, providing substantial upside potential for resource expansion.

Blue Star's projects are strategically located 40 to 100 kilometres south of the proposed Grays Bay deepwater port, with the planned all-weather Grays Bay Road corridor passing close to the company's projects. The Grays Bay Road and Port project was recently referred to the Major Projects Office by Prime Minister Carney. The Major Projects Office was created to fast track infrastructure projects that are deemed to be of national importance.

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