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

Rhea-AI Summary

Blue Star Gold (OTCQB: BAUFF) acquired high-resolution SkyTEM 306HP airborne EM and magnetic data across 2,450 hectares at the Roma and Auma targets in West Kitikmeot, Nunavut, announced November 13, 2025. The survey identified multiple discrete AEM anomalies within 3 km of the High Lake deposit West Zone and confirmed extensions of gold-bearing trends at Auma, with recent 2025 grab samples up to 151.5 g/t Au and historical Roma samples to 9.99% Cu. No known drill holes have tested the new anomalies. Blue Star plans Maxwell 3D modelling, a fixed-loop ground EM program in spring 2026, summer 2026 mapping/sampling, and a follow-up drill program pending results.

Positive

• 2,450 ha of SkyTEM 306HP data collected across Roma and Auma
• Multiple AEM anomalies within 3 km of High Lake West Zone
• Follow-up plan: Maxwell 3D modelling, spring 2026 ground EM, summer 2026 mapping

Negative

• No known drill holes have tested the newly delineated AEM anomalies
• Cairo area shows only a weak conductive/magnetic response despite historic 9.99% Cu samples

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.

At the Stu Prospect, the SkyTEM survey detected a moderate to strong conductive response partially coincident with a moderate magnetic feature. Historical work at the Stu prospect has outlined a broad alteration zone measuring approximately 200 by 300 metres, with intense silicification, sodium depletion, and abundant dalmatianite. Historical grab samples returned grades of 5.96% and 4.76% Cu (AR030105).

The West West Prospect, located less than two kilometres west of the High Lake Deposit West Zone, exhibits a moderate conductive response with a limited magnetic signature. The area has an extensive surface gossan with assays of 1.64% Cu and 1.10 g/t Au (AR030105, AR082986).

The South Prospect is defined by a strong, late-time electromagnetic anomaly that is coincident with a magnetic anomaly. This target is located roughly four kilometres south of the High Lake Deposit D Zone, along the same stratigraphic horizon, where abundant surface gossan occurs, with massive pyrite lenses mapped at the surface (AR082986).

The Cairo area has the most promising surface mineralization. Historical rock samples have returned assays of up to 9.99% Cu (AR030105), and recent 2025 grab samples have yielded 7.78% Cu and 4.20% Cu (News Release dated September 10, 2025). The known stringer style mineralization is hosted within altered volcanic rocks, characteristic of a VMS system feeder zone. The SkyTEM survey data shows a weak conductive and magnetic response at Cario.

Readers are cautioned that the Company has no interest in or right to acquire any interest in adjacent properties and they are not indicative of mineral deposits on the Company's properties or any potential exploration thereof.

Auma Gold Property: Geophysical Correlation with Known Mineralization

At the Auma Property, the SkyTEM data confirmed the geophysical signature associated with the known mineralized trends. In the main discovery area, high-grade gold mineralization is spatially coincident with both magnetic and conductive anomalies. Recent 2025 surface grab samples from the main showing graded 151.5 and 125.5 g/t Au, and samples collected 1.4 kilometres south of the main showing returned assays of 35.5 g/t Au (News Release dated September 10, 2025) and occur in a zone displaying similar geophysical characteristics to the known mineralization. The strong correlation between the geophysical and geochemical results suggests potential for a significant increase in the strike extent of the mineralization.

Next Steps

Interpretation of the SkyTEM data is ongoing and will include detailed Maxwell 3D plate modelling of the most significant conductors to better define their geometry and depth. Priority targets identified through modelling will be evaluated with a follow-up fixed loop ground EM survey to refine anomaly locations. This ground EM program is planned during the 2026 spring season to utilize lake ice for full coverage. The 2026 spring fixed loop survey program will also include work on the Ataani massive sulphide lens, Blue Star's 2024 critical mineral discovery (News Releases dated September 5 and September 24, 2024). A geological mapping, prospecting, and sampling program focusing on the highest priority geophysical trends is planned during the summer of 2026.

Results from both the geophysical and geological programs will be utilized to design an extensive drill program to test the most promising targets.

About the SkyTEM Survey

The SkyTEM survey was undertaken in the Summer of 2025. Survey lines were 100 metres apart with tie lines every 1,000 metres. Survey height for the EM coil and magnetics bird was approximately 35 - 45 metres above ground level. SkyTEM is a global leader in the field of airborne geophysics, delivering state-of-the-art electromagnetic and magnetic survey solutions. Their expertise lies in offering high-resolution subsurface data that supports a variety of applications, including mineral exploration.

References

Assessment Report 082986. Muntanion, H.R. 1991. Cairo 1 and 2 Claims. Report on Geology and Geochemistry. BHP - Utah Mines Ltd. January 1991.

Assessment Report 030105. Toole, T et al. 2009. High Lake Geological, Geophysical, Geochemical and Drilling Report. OZ Minerals. January 2009.

Figure 1: Location of SkyTEM Survey on Blue Star's Landholdings.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/2421/274258_75697474847329c9_002full.jpg

Figure 2: Roma Landholding Showing SkyTEM Data and Location of Prospective Conductive Zones in Relation to Existing Sulphides Lenses of the High Lake VMS Deposit.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/2421/274258_bluestar.jpg

Qualified Person

Darren Lindsay, P. Geo. and Vice President Exploration for Blue Star, is a Qualified Person under National Instrument 43-101 ("NI 43-101") and has reviewed and approved the technical information contained in this news release.

Grays Bay Road and Port Project (Arctic Security Corridor)

West Kitikmeot Resources Corp (https://www.westkit.ca/gbrp) is the proponent for the Grays Bay Road and Port Project. The project envisions a deepwater port built on the Coronation Gulf and a road connecting Nunavut to the Northwest Territories. The proposed all-season road would travel within and immediately adjacent to Blue Star's Projects, providing excellent accessibility. This future access will dramatically lower the cost of doing business in the region, connecting Northern products to markets around the world, and enabling supplies to reach the area at a lower cost, for a longer season, and with greater reliability.

About Blue Star Gold Corp.

Blue Star is a mineral exploration and development company focused in Nunavut, Canada. Blue Star's landholdings total 300 square kilometres of highly prospective and underexplored mineral properties in the High Lake Greenstone Belt. The Company owns the Ulu Gold Project, comprised of the Ulu Mining Lease and Hood River Property, and the Roma Project. A significant high-grade gold resource exists at the Flood Zone deposit (Ulu Mining Lease), and numerous high-potential exploration targets (gold and critical minerals) occur throughout the Company's extensive landholdings, providing Blue Star with excellent resource growth potential. The site of the future deep-water port at Grays Bay is 40 - 100 km to the north of the properties, and the proposed route corridor for the all-weather Grays Bay Road passes close by the Roma and Ulu Gold Projects.

Blue Star is listed on the TSX Venture Exchange under the symbol: BAU, the U.S. OTCQB Venture Market under the symbol: BAUFF, and on the Frankfurt Exchange under the symbol: 5WP0. For information on the Company and its projects, please visit our website: www.bluestargold.ca.

For further information, please contact:

Grant Ewing, P. Geo., CEO
Telephone: +1 778-379-1433
Email: info@bluestargold.ca

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the Policies of the TSX-Venture Exchange) accepts responsibility for the adequacy or accuracy of this Release.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS AND INFORMATION

This press release contains "forward-looking statements" within the meaning of applicable securities laws. Forward-looking statements can be identified by words such as: "anticipate," "intend," "plan," "goal," "seek," "believe," "project," "estimate," "expect," "strategy," "future," "likely," "may," "should," "will" and similar references to future periods. Examples of forward-looking statements include, among others, statements we make regarding prospective income and revenues, anticipated levels of capital expenditures for the fiscal year, expectations of the effect on our financial condition of claims, litigation, environmental costs, contingent liabilities, and governmental and regulatory investigations and proceedings, and estimates of mineral resources and reserves on our properties.

Forward-looking statements are neither historical facts nor assurances of future performance. Instead, they are based only on our current beliefs, expectations, and assumptions regarding the future of our business, plans and strategies, projections, anticipated events and trends, the economy, and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks, and changes in circumstances that are difficult to predict and many of which are outside of our control. Our actual results and financial condition may differ materially from those indicated in the forward-looking statements. Therefore, you should not rely on any of these forward-looking statements. Important factors that could cause our actual results and financial condition to differ materially from those indicated in the forward-looking statements include, among others, the following: economic and financial conditions, including volatility in interest and exchange rates, commodity and equity prices and the value of financial assets, strategic actions, including acquisitions and dispositions and our success in integrating acquired businesses into our operations, developments and changes in laws and regulations, including increased regulation of the mining industry through legislative action and revised rules and standards applied by the regulatory bodies in Nunavut, changes in the price of fuel and other key materials and disruptions in supply chains for these materials, closures or slowdowns and changes in labour costs and labour difficulties, including stoppages affecting either our operations or our suppliers' abilities to deliver goods and services to us, as well as natural events such as severe weather, fires, floods and earthquakes or man-made or other disruptions of our equipment, and inaccuracies in estimates of mineral resources and/or reserves on our mineral properties.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/274258

FAQ

What did Blue Star (BAUFF) announce on November 13, 2025 about the Roma Project?

Blue Star reported new SkyTEM 306HP airborne EM and magnetic data that identified multiple AEM anomalies near the High Lake deposit and confirmed extensions at Auma.

How close are the new SkyTEM anomalies to the High Lake deposit on BAUFF's Roma Project?

The SkyTEM survey defined multiple AEM anomalies within 3 km of the High Lake deposit West Zone.

Have Blue Star (BAUFF) drilled the new AEM targets identified in November 2025?

No; the company stated no known drill holes have tested the newly delineated anomalies.

What follow-up work did Blue Star plan after the November 13, 2025 SkyTEM results?

Blue Star plans Maxwell 3D plate modelling, a fixed-loop ground EM program in spring 2026, summer 2026 mapping/sampling, and a subsequent drill program.

What high-grade samples were reported at Auma in 2025 by Blue Star (BAUFF)?

Recent 2025 surface grab samples at Auma included 151.5 g/t Au and 125.5 g/t Au, with additional samples of 35.5 g/t Au reported 1.4 km south of the main showing.

Do the SkyTEM results confirm VMS-style targets on BAUFF's Roma property?

Yes; the SkyTEM anomalies coincide with VMS-style surface mineralization and hydrothermal alteration, highlighting priority targets (Stu, West West, South, Cairo).