Mr. Rob Birmingham reports

GOLDHAVEN CONFIRMS ANOMALOUS TUNGSTEN AT KUHN AND DEAD GOAT AND IDENTIFIES NEW TUNGSTEN ZONE AT VINES LAKE WITH UP TO 6,550 PPM W, MAGNO PROPERTY

Goldhaven Resources Corp. has provided additional context and interpretation of tungsten assay results from its 2025 surface exploration program at the Magno property in northwestern British Columbia, further to the Jan. 6, 2026, news release. The 2025 program was designed to systematically verify historical mineral occurrences and expand the geochemical data set across the property using modern analytical techniques.

Highlights:

• Confirmed anomalous tungsten mineralization at the historical Kuhn and Dead Goat showings, validating historical surface data;
• Identified a newly recognized tungsten zone at Vines Lake, where tungsten mineralization had not previously been documented;
• Highest-grade sample from the 2025 program returned up to 6,550 parts per million tungsten at the Vines Lake showing;
• Surface mapping confirms structurally controlled skarn (manto-style) mineralization, consistent with tungsten-bearing systems across the Magno property;
• Approximately 1.3 kilometres of anomalous tungsten mineralization defined at the Kuhn target, supporting district-scale tungsten and critical mineral potential.

Results confirm anomalous tungsten mineralization at the historical Kuhn and Dead Goat showings, validating historical data, and identify a previously undocumented tungsten occurrence at the Vines Lake showing, where the highest-grade sample from the program returned 6,550 parts per million tungsten. These findings expand the known footprint of tungsten mineralization at Magno and demonstrate that tungsten mineralization is distributed across multiple structurally controlled zones within the project area.

Tungsten: a critical mineral of strategic importance to North America

Tungsten is recognized as a critical mineral due to its unique physical properties, including the highest melting point of all metals, exceptional hardness and high density, which make it essential for a wide range of industrial and strategic applications. It is widely used in cutting and drilling tools, wear-resistant alloys, electronics, energy infrastructure, and defence applications. Global tungsten supply is highly concentrated, with limited primary production outside of a small number of jurisdictions, underscoring the importance of identifying new, secure sources in stable mining regions. The confirmation of tungsten mineralization across multiple structurally controlled skarn zones at the Magno property highlights the project's relevance to critical mineral exploration and supports its potential strategic value alongside the property's established silver and base metal systems.

Overview of structure and lithology

The Kuhn and Dead Goat zones are underlain by gently dipping, north-northwest-striking stratigraphy, including carbonate-bearing units of the Rosella formation and the Ingenika group, as well as clastic units of the Boya formation and Kechika group. Mineralization in both areas occurs within structurally controlled skarns (mantos).

At the Kuhn showing, two principal skarn horizons are recognized:

• The upper 3A skarn developed within the central Rosella formation; and
• The lower 3A skarn developed along the contact between the Boya and Rosella formations.

The lower skarn horizon is characterized by a distinctive vuggy texture.

Tungsten mineralization is most strongly developed within diopside-garnet skarn assemblages. Pyrrhotite-rich phases commonly show a negative correlation with tungsten, reflecting variations in oxidation state during skarn-forming mineralization events.

Structural controls and metal zoning

Field mapping completed during the 2025 program also identified a third, previously unrecognized skarn and/or silicified structural zone striking northeast and oblique to the Kuhn and Dead Goat skarns. This structure is characterized by a stronger zinc association and exhibits structural similarities to mineralization observed at the Magno and D zones.

Minor copper mineralization is present at both Kuhn and Dead Goat, typically associated with zoned pyrrhotite skarn phases, fracture-controlled pyrrhotite and quartz veining. One sample collected from a small granite stock at southern Kuhn returned 1,765 parts per million copper, interpreted to lie along strike from the same structural corridor hosting silicified zinc mineralization. These observations suggest a potential relationship between northeast-trending structures and the intrusive heat source associated with the Cassiar stock, a relationship that will be the focus of continued geological evaluation.

Exploration significance

At the Kuhn and Dead Goat zones, tungsten assays are consistent with historical results, with multiple samples returning values between 500 and 5,000 ppm W. The Kuhn target covers approximately 1.3 kilometres of anomalous tungsten mineralization along strike, supporting continued derisking through follow-up mapping, sampling and target refinement.

Results from the 2025 program further strengthen Goldhaven's confidence in the Magno property as a district-scale polymetallic system with significant silver, base metal, tungsten and critical mineral potential. The company will advance priority targets -- including the Magno and D zones, the Kuhn and Dead Goat tungsten areas, and the newly identified Vines Lake showing -- toward detailed targeting and future drill planning.

"The 2025 surface program successfully achieved one of its primary objectives of verifying historical tungsten mineralization at the Kuhn and Dead Goat showings while also identifying a new tungsten occurrence at Vines Lake," said Robert Birmingham, president and chief executive officer of Goldhaven. "These results highlight the continuity and scale of tungsten mineralization across multiple structurally controlled skarn zones at Magno and further support our view that the property may host a large, zoned polymetallic system. With tungsten now confirmed over more than a kilometre of strike at Kuhn, we are well positioned to advance priority targets toward detailed targeting and future drill planning."

Quality assurance/quality control

The most recent work conducted on the property by the company as outlined in this news release utilized ALS Geochemistry Labs in North Vancouver, B.C. ALS Geochemistry has no relationship with the company. Sample shipment was conducted using industry standard chain of custody procedures. Due to the preliminary nature of the field geochemistry programs, no blind analytical blanks and standards were utilized by the company, and only the internal procedures employed by the commercial lab were utilized for QA/QC protocols. Field notes, sample locations, lab certified reference materials and assay results were reviewed, and the qualified person is satisfied that these procedures and protocols are sufficient given the current stage of exploration on the property.

Magno project

Goldhaven Resources' Magno project is a district-scale exploration asset spanning 36,973.29 hectares in the prolific Cassiar region of northwestern British Columbia. Located just three kilometres south of the historic mining town of Cassiar and crossed by Highway 37, Magno benefits from road access and infrastructure rarely matched by early-stage exploration projects of this scale.

The project directly borders mineral claims held by Cassiar Gold Corp. and Coeur Mining Inc., positioning Goldhaven within a proven regional mining corridor with established operators active in both precious metal and polymetallic systems. Proximity to supply hubs such as Dease Lake, Watson Lake and Whitehorse -- along with potential hydroelectric access from regional infrastructure -- enhances Magno's logistical and long-term development advantages.

About Goldhaven Resources Corp.

Goldhaven is a Canadian junior exploration company focused on acquiring and exploring highly prospective land packages in North and South America. The company's projects include the flagship Magno project, a district-scale polymetallic property adjacent to the historic Cassiar mining district in British Columbia. The Three Guardsman project exhibits significant potential for copper and gold-skarn mineralization. The Copecal gold project is a drill-ready gold project located in Mato Grosso, Brazil, with a six-kilometre strike of anomalous gold-in-soil samples. Three critical mineral projects with extensive tenement packages total 123,900 hectares: Bahia South, Bahia North and Iguatu projects located in Brazil.

Qualified person

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

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