Mr. Rob Birmingham reports

GOLDHAVEN ADVANCES TUNGSTEN DRILLING AT MAGNO PROJECT, BRITISH COLUMBIA

Goldhaven Resources Corp. has provided an update on its continuing maiden diamond drill program at the 100-per-cent-owned Magno project, located in the Cassiar district of Northern British Columbia.

• Over 800 metres drilled from the first drill pad at the historic Kuhn tungsten system, with drilling continuing across multiple planned drill fences.
• Initial drilling encountered an approximately 20-metre interval of skarn, where historical interpretation had mapped two separate narrower skarn bands.
• Historic drilling at Kuhn returned strong tungsten intercepts, including 13.0 m grading 0.55 per cent WO3 and 11.3 m grading 0.59 per cent WO3 plus 0.10 per cent MoS2.
• Historical work outlined approximately 616,500 tonnes grading 0.48 per cent WO3 across four modeled lenses at the Kuhn-Dead Goat system.
• Current drilling is targeting the geometry and continuity of the tungsten-bearing skarn, while testing potential extensions beyond historically drilled areas.

Historical results and estimates predate National Instrument 43-101 and are subject to the applicable cautionary language provided in this release.

Diamond drilling commenced in late August at the historic Kuhn tungsten skarn system, with over 800 metres of drilling completed to date in four drill holes from the first drill pad (Pad A). The initial phase of drilling is designed to test the geometry, continuity and potential extensions of the historically identified tungsten-bearing skarn mineralization while providing the first modern drill data.

Drilling in the first three drill holes has encountered broad intervals of skarn alteration and sulphide mineralization within the top 100 m, including an approximately 20-metre interval of skarn in the second drill hole. This interval is particularly notable because the historical geological interpretation at this site was mapped as two separate skarn bands, whereas initial observations from the current drilling suggest the possibility of a broader, more continuous skarn package. The fourth drill hole (GOH26-04) has confirmed a never before explored down-dip extension of the skarn unit.

Visually, the geology encountered in the first drill holes appears to match the lithological descriptions described in the historical drill logs and reports. Further, analysis with a portable XRF indicates the presence of tungsten within the skarn intersections.

Rob Birmingham, chief executive officer of Goldhaven, commented:

"The first phase of drilling at Magno is doing exactly what we wanted it to do -- giving us a modern look at a historically important tungsten system that has seen very limited exploration for decades. We are encouraged by the scale of the skarn alteration encountered in the early holes, particularly where drilling appears to show a broader package than suggested by the historical interpretation. With drilling continuing, our priority is to systematically test Kuhn and build the geological framework needed to determine the scale and continuity of the system."

Kuhn drilling update

The current drilling is focused on systematically testing the historic Kuhn tungsten system through a series of drill fences designed to provide greater geological control across the mineralized trend.

The four initial drill holes from Pad A are designed to test the system at greater depth and evaluate potential extensions. Following completion of the first pad, the drill is planned to advance to a second drill pad along strike where approximately three to four additional holes are planned.

The company's objective during this phase is to establish multiple modern drill sections across Kuhn, providing significantly improved information on the geometry, thickness and continuity of the skarn system, and allowing direct comparison with historical drilling.

Drilling remains continuing at Kuhn, with results from the current program being integrated with historical drilling, surface geology and modern geophysical data to guide subsequent drill targeting. Results from the current program, together with historical drilling, surface geology and modern geophysical data, will be used to determine whether additional drilling is warranted at Kuhn before the program advances to other priority targets within the Magno property.

Historic Kuhn tungsten system

The Kuhn-Dead Goat area hosts a series of historically defined tungsten-bearing skarn lenses. Historical work outlined an estimate of approximately 616,500 tonnes grading 0.48 per cent WO3 across four modelled lenses.

Historical drilling at Kuhn included reported intersections of:

• 13.0 metres grading 0.55 per cent WO3;
• 11.3 metres grading 0.59 per cent WO3 and 0.10 per cent MoS2;
• 4.0 metres grading 1.32 per cent WO3 and 0.26 per cent MoS2.

The historical estimate and drill results predate NI 43-101 and should not be considered a current mineral resource or mineral reserve. A qualified person has not completed sufficient work to

Classify the historical estimate as a current mineral resource, and Goldhaven is not treating the historical estimate as a current mineral resource.

The current program represents an important step toward establishing modern geological and analytical data across the Kuhn system and evaluating the continuity and potential extensions of the historically identified tungsten mineralization.

Broader Magno drill program

Kuhn represents the first phase of a broader drill campaign across the district-scale 37,000-plus-hectare Magno project.

Following the initial Kuhn program, Goldhaven intends to evaluate additional high-priority drill targets, including the D zone and broader Magno target area, where historical exploration and recent surface work have identified significant silver, lead, zinc, gold and copper mineralization.

Drill targeting across Magno is being supported by the integration of historical drilling and underground workings, surface mapping and geochemistry, and Goldhaven's recently completed 2,320.7-line-kilometre airborne magnetic and QMAGT survey. The company continues to integrate these data sets as drilling progresses and new geological information becomes available.

The 2026 program is being completed by Northtech Drilling and represents the first modern, systematic drill campaign undertaken by Goldhaven at Magno.

Next steps

Drilling remains continuing at Kuhn, with the immediate program focused on completing the planned drill fences and evaluating the continuity of the skarn system. Core is being logged, sampled and submitted for laboratory analysis, with assay results to be released as they are received, reviewed and verified.

The company will use the geological observations and analytical results from the initial Kuhn drilling to refine subsequent drill targeting both at Kuhn and across the broader Magno project.

Qualified person

The technical and scientific information contained in this news release has been reviewed and approved by Raymond Wladichuk, PGeo, who is a non-independent qualified person as defined under National Instrument 43-101 and a consultant of the company.

About Goldhaven Resources Corp.

Goldhaven Resources is a Canadian junior exploration company focused on advancing highly prospective mineral projects in North and South America. The company's flagship asset is the district-scale Magno project in the Cassiar district of Northern British Columbia. Goldhaven also owns the Three Guardsmen copper-gold project in British Columbia and the Copecal gold project in Mato Grosso, Brazil. In addition, the company holds a portfolio of critical mineral projects in Brazil.

We seek Safe Harbor.