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Blue Star Reports Nutaaq Field and Drill Results Including 7.31 g/t Gold Over 5.7 Metres

Drill Results

Blue Star Reports Nutaaq Field and Drill

Results Including 7.31 g/t Gold Over 5.7 Metres

Vancouver, British Columbia--(Newsfile Corp. - October 1, 2025) -

Blue Star Gold Corp. (TSXV: BAU)

(OTCQB: BAUFF) (FSE: 5WP0) ("Blue Star" or the "Company")

, a leading explorer in Canada's

North announces initial drill results from the recently completed Exploration Program at its projects

located in the High Lake Belt, West Kitikmeot Region of Nunavut (Figure 1). Blue Star's drilling program

ended on August 30

th

after testing five target areas identified during the Phase I Surface Exploration

Program. Results are available from the two targets tested along the 1,600-metre-long Nutaaq trend.

Highlights

25UND-002 returned 2.79 meters (m) of 4.33 grams/tonne gold (g/t Au) from 54.14 metres

downhole, and 7.97 m of 1.40 g/t Au and

5.70 m of 7.31 g/t (including 1.80 m of 21.1 g/t Au)

from 81.9 metres and 105 metres downhole respectively

Drilling expanded the Nutaaq trend 335 metres west-northwest of the Gnu Zone resource area for

a total target area length of at least 1,600 metres

Surface grab samples from a structure parallel to, and 150 metres southeast of the target tested by

25UND-002 returned assay values of

115.5

g/t Au, 115.0 g/t Au

, 10.05 g/t Au and 3.23 g/t Au

Surface samples of the Alone vein located at the east-southeast end of the Nutaaq trend provided

confirmation sample results of 6.64 g/t Au and 12.15 g/t Au

"Continued groundwork along the Nutaaq trend consistently presents the exploration team with additional

targets to build on the Gnu Zone resource," said Grant Ewing, CEO of Blue Star, "The high-grade gold

grabs at surface, along with untested geophysical anomalies, suggest that there is potential to build

additional resource ounces along the 1.6-kilometre-long trend. We are looking forward to advancing this

trend of targets as part of our 2026 drill program, where we plan to test its full potential."

Discussion of the Nutaaq Trend Field Program

The Nutaaq style mineralization on Blue Star's Ulu property is generally characterized as NE-SW

trending tension veins that are hosted within a thick, locally magnetic gabbro sill. These structures are

known to host both Flood Zone-style mineralisation and Nutaaq-style polymetallic sulphide veins with

high gold values. The Gnu Zone resource occurs within a ~200 metre section of this gabbro sill, on the

eastern limb of the Ulu anticline, located less than 1 km from the Flood Zone deposit (Figure 2).

Blue Star's 2025 field program successfully extended the prospective Nutaaq trend through targeted

prospecting and subsequent drilling of both high-grade surface mineralization and new structures parallel

to known Nutaaq veining, highlighted by Loupe electromagnetic (EM) data acquired during the 2024

program. The prospective trend covers over 1,600 metres of strike length and extends into the

structurally thickened fold hinge of the gabbro sill (Figure 2).

The Loupe system is a portable, backpack-mounted time-domain electromagnetic system used for

mapping of near-surface ground conductivity. In 2024 Blue Star collected Loupe EM data over parts of

the prospective gabbro sill to determine whether the EM system could identify concentrations of

polymetallic sulphides commonly found within veining and at vein selvages. In 2025, prospecting the EM

anomalies proved fruitful where sulphide rich white to smoky grey quartz veining was found coincident to

the EM 'bullseye' targets. The two highest grade grab samples returned

115.5 g/t Au and 115.0 g/t Au,

located ~40 metres apart along a single trend. A sample grading 3.02 g/t Au located ~260 metres to the

southwest, along the same NE-SW trend suggests this structure has over 300 metres of strike length and

has yet to be drill-tested (Figure 2, Table 1). This prospective area is located ~600 metres north of the

existing Flood Zone underground workings.

In 2025, two drill holes tested the Nutaaq area. Hole 25UND001 was designed to test beneath two

samples with visible gold that returned grades of 597 g/t Au and 134.5 g/t Au (Table 1 - News Release

Aug 12, 2025). This hole intercepted a 1.5 metre interval within basalt that graded 0.79 g/t Au. The

gabbro-sediment contact was intersected much earlier in the drill hole than expected in the target area,

suggesting the structure is not fully understood.

Hole 25UND002 was designed to test beneath a Loupe-EM anomaly along with a 2025 surface grab

sample grading 8.72 g/t Au. This anomaly is part of an EM trend located within the fold nose of the

gabbro sill, ~335 metres west-northwest of the Gnu Zone resource area and has the potential to extend

over a 400-metre strike length. This drill hole intersected several mineralized intervals, characterized by

white quartz veining and net-textured to blebby pyrrhotite, lesser pyrite and minor sphalerite and

chalcopyrite (Image 1). Highlights include 2.79 metres of 4.33 g/t Au from a quartz vein hosted in a

narrow embayment of greywacke at a depth of 54.14 metres downhole, 7.97 metres of 1.40 g/t Au and

5.70 metres of 7.31 g/t including 1.80 metres of 21.1 g/t Au, hosted in quartz veining in gabbro from 81.9

metres and 105 metres downhole respectively.

Image 1: Net Texture Sulphides in Quartz Veining from 25UND002.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2421/268675_fcf389421410b830_002full.jpg

Next Steps

The Nutaaq trend is shaping up to be a compelling target for the 2026 season. Recent geophysical

surveys and prospecting within the northwest portion of the gabbro sill suggest mineralized trends occur

over ~400 metres of strike length across the fold nose, and surface grabs up to 115.5 g/t Au along

parallel trends have yet to be drill-tested. The Loupe EM survey was extended in the 2025 season to

cover the remaining areas of the Nutaaq trend (Figure 2). Over the winter season, all data will be

reviewed in preparation for a planned robust drill program in 2026.

Sampling, Assaying & QA/QC

Blue Star field programs collect a variety of samples; prospecting rock samples are selective by nature,

channel samples are saw-cut samples from outcrop intended to be representative of the exposed

mineralisation, and drill core samples are sawn in half with one half retained as core record and the other

half submitted for analysis.

Blue Star samples are delivered under chain of custody to ALS Geochemistry in Yellowknife, NT for

sample preparation which are then forwarded to ALS Canada Inc. in North Vancouver, BC for final

analysis. Samples are prepared using code PREP-31 (crushing and pulverising) and analysed using

codes Au-AA26 (50-gram fire assay with atomic absorption finish) and ME-MS61 (48 element four acid

digestion with ICP-MS finish). Samples returning >10 g/t Au are reanalysed under code Au-GRA22 (50-

gram fire assay with gravimetric finish). Over limits for non-gold elements are ore grade four acid

digestion with ICP-AES finish. The work is being conducted using industry standard procedures,

including a quality assurance and quality control ("QA/QC") program consisting of the insertion of

certified standards, blanks and duplicates into the sample stream.

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.

Table 1: 2025 Samples Grading Over 1 g/t Gold and Drill Results*.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2421/268675_fcf389421410b830_003full.jpg

* Insufficient drilling has been completed to determine true widths; downhole intervals are reported.

Figure 1: Location Map of Blue Star Projects and Landholdings.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2421/268675_fcf389421410b830_004full.jpg

Figure 2: 2025 Drill Hole and Sample Locations on Loupe-EM Grid on the Nutaaq Trend.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2421/268675_fcf389421410b830_005full.jpg

Figure 3: 25UND002 Vertical Cross Section.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2421/268675_fcf389421410b830_006full.jpg

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:

[email protected]

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/268675