Mr. Rob Birmingham reports

GOLDHAVEN TARGETS HISTORIC KUHN TUNGSTEN ZONE IN FULLY FUNDED 2026 DRILL PROGRAM

Goldhaven Resources Corp. has provided additional details regarding its planned 2026 diamond drill program at the company's 100-per-cent-owned Magno project, located in the Cassiar district of Northern British Columbia.

The fully financed drill program is designed to verify and expand historical tungsten mineralization at the Kuhn zone while also advancing additional priority targets across the district-scale Magno project. The program will focus on twinning selected historical drill holes, testing interpreted extensions of known mineralization and evaluating the broader scale potential of the tungsten-bearing skarn system.

Highlights:

• Fully financed 2026 drill program targeting the Kuhn and Dead Goat tungsten zones;
• Historical estimate of 616,500 tonnes grading 0.48 per cent WO3 across four modelled mineralized lenses*;
• Previous drilling returned up to 4.0 metres grading 1.32 per cent WO3 and 0.26 per cent MoS2;
• Multiple tungsten-bearing intervals exceeding 0.5 per cent WO3 intersected across the Kuhn zone;
• Planned drilling to twin key holes and test extensions of known tungsten mineralization;
• Tungsten-bearing skarn mineralization is associated with intrusive activity, supporting an intrusion-related mineralizing system;
• Continuing airborne geophysics and geological modelling are refining drill targets;
• Additional drilling planned at the Magno and D zones.

* See the historical estimate disclosure in this news release. Goldhaven is not treating the historical estimate as a current mineral resource or mineral reserve.

Tungsten is recognized as a critical mineral by both Canada and the United States due to its importance in defence, aerospace, industrial manufacturing and advanced technology applications. Goldhaven believes the Magno project represents a unique opportunity to evaluate a historically defined tungsten-bearing skarn system within a stable mining jurisdiction.

"The Kuhn zone represents an exciting opportunity to evaluate a historically defined tungsten-bearing skarn system at a time when demand for critical minerals continues to increase," stated Rob Birmingham, chief executive officer of Goldhaven. "Our fully funded 2026 drill program is designed to verify previous drilling, test extensions of known mineralization and improve our understanding of what we believe could be a larger tungsten-molybdenum system. With multiple mineralized lenses identified and indications that the system remains open at depth, we believe Kuhn has the potential to become an important critical minerals target within the Magno project.

Historical tungsten estimate

Historical exploration completed by previous operators included drilling, underground development, geological mapping and lens modelling that identified multiple tungsten-bearing skarn horizons within the Kuhn and Dead Goat areas of the Magno project. The historical work outlined several mineralized lenses that form the basis for Goldhaven's planned verification drilling program.

The historical estimate is provided in the attached table.

Collectively, these zones represent a historical estimate of approximately 616,500 tonnes grading 0.48 per cent WO3.

The historical estimate was generated by previous operators and provides evidence of a tungsten-bearing skarn system developed within favourable carbonate host rocks adjacent to intrusive bodies. Goldhaven believes the historical work highlights the exploration potential of the Kuhn and Dead Goat areas and provides a valuable framework for the company's upcoming drill program.

The planned 2026 drilling is designed to twin selected historical drill holes, verify historical mineralization, evaluate continuity of the mineralized skarn horizons, and test for extensions of the system both along strike and at depth.

A qualified person has not completed sufficient work to classify the historical estimate as a current mineral resource or mineral reserve, and Goldhaven is not treating the historical estimate as a current mineral resource or mineral reserve. The historical estimate is considered relevant to investors as it demonstrates the presence of a significant tungsten-bearing system and assists in guiding exploration and drill targeting.

Kuhn zone tungsten target

The Kuhn zone hosts tungsten-bearing skarn mineralization developed along contacts between intrusive rocks and reactive carbonate units, a geological setting commonly associated with significant tungsten deposits worldwide. The zone forms part of a broader corridor of skarn mineralization identified across the Magno project. Mineralization is spatially associated with altered carbonate rocks located adjacent to intrusive bodies believed to have acted as the source of mineralizing fluids.

Historical drilling completed by previous operators intersected intervals of tungsten mineralization within skarn horizons developed along favourable stratigraphic and structural contacts. Goldhaven's planned drill program will target these historical intercepts while also testing interpreted extensions of the mineralized system both along strike and at depth. Recent airborne magnetic and QMAGT survey results, together with ongoing geological modelling, are being incorporated into final drill targeting and may provide additional insight into the structural and intrusive controls on mineralization.

Historical drilling

Previous drilling at the Kuhn North zone intersected multiple tungsten-bearing skarn horizons within the Upper 3A and Lower 3A lenses, and outlined mineralization over a vertical extent exceeding 100 metres, demonstrating continuity within several modelled skarn lenses.

Historical intercepts included:

• 13.0 metres grading 0.55 per cent WO3;
• 11.3 metres grading 0.59 per cent WO3 and 0.10 per cent MoS2;
• 6.0 metres grading 0.58 per cent WO3;
• 6.0 metres grading 0.58 per cent WO3 and 0.12 per cent MoS2;
• 4.4 metres grading 0.75 per cent WO3 and 0.17 per cent copper (Cu);
• 4.0 metres grading 1.32 per cent WO3 and 0.26 per cent MoS2.

Goldhaven believes the downdip extensions of these mineralized skarn horizons represent compelling targets for the upcoming drill program.

Historical geological interpretations suggest the tungsten-bearing skarn horizons remain open at depth and may be associated with a broader intrusion-related mineralizing system. Quartz-molybdenum veining identified beneath the known skarn mineralization further supports the potential for a larger mineralized system. Goldhaven's planned drill program is designed to verify these historical results, test downdip and along-strike extensions of known mineralization, and improve the geological understanding of the Kuhn tungsten target.

The company notes that the historical drilling results referenced herein have not been independently verified by Goldhaven. The planned drill program is intended, in part, to verify these historical results.

Geological model

Goldhaven's exploration team interprets the Kuhn zone as part of a larger intrusion-related mineral system developed within carbonate host rocks of the Cassiar terrane. Mineralization is believed to occur within skarn horizons formed by interaction between mineralized intrusive fluids and reactive carbonate units.

The company's geological model suggests that historical drilling may have only tested a portion of the mineralized system. Planned drilling is designed to evaluate both lateral and vertical continuity while testing for higher-grade zones associated with structural controls and potential feeder pathways.

2026 drill program

The initial phase of drilling at Kuhn is expected to focus on twinning key historical holes, testing interpreted extensions of known mineralization and improving the geological understanding of the tungsten-bearing skarn system. Final drill collar locations and metreage will be refined following integration of airborne geophysical data and continuing geological modelling. The program will include:

• Twinning of selected historical drill holes;
• Follow-up drilling on historical mineralized intercepts;
• Stepout drilling along strike and downdip;
• Testing of geophysical and geological targets generated through recent exploration work;
• Collection of modern geological, structural and geochemical data to support future resource evaluation.

The Kuhn zone will form part of Goldhaven's broader 2026 exploration strategy, which also includes planned drilling at the Magno and D zones, where previous exploration identified high-grade silver-lead-zinc carbonate-replacement-style mineralization.

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.

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