Mr. Rob Birmingham reports

GOLDHAVEN REPORTS HIGH-GRADE GOLD ASSAYS UP TO 55.3 G/T AU AT MAGNO

Goldhaven Resources Corp. has released results from follow-up gold analyses completed on select rock samples collected during the company's 2025 surface exploration program at its 100-per-cent-owned Magno project in the prolific Cassiar district of Northern British Columbia.

Highlights

• 55.3 grams per tonne Au returned from follow-up metallic screen analysis;
• Multiple additional samples returned greater than one g/t Au;
• Highest-grade gold clustered within the Magno and D zone target areas;
• Gold mineralization spatially associated with recently interpreted district-scale structural corridors;
• Results strengthen the company's evolving geological model linking gold with widespread silver, lead, zinc, copper, tungsten and indium mineralization across the Magno project;
• Drilling remains on schedule to commence following receipt of final permits;
• High-grade gold occurs along the district-scale structural corridor identified by the recently completed 2,320.7-line-kilometre airborne magnetic survey.

Follow-up metallic screen analyses returned assays of up to 55.3 g/t Au, confirming high-grade gold values within the Magno project and demonstrating that the strongest gold occurrences are spatially associated with the company's recently identified district-scale structural corridor. Importantly, the highest-grade gold occurrences are concentrated within the Magno and D zone mineralized centres, where they coincide with major structural corridors identified during the company's recently completed 2,320.7-line-kilometre airborne magnetic survey. The spatial association between the highest-grade gold occurrences, known polymetallic mineralized centres and interpreted district-scale structural corridors is consistent with the company's evolving geological interpretation of a large, long-lived hydrothermal system at the Magno project

Rob Birmingham, chief executive officer of Goldhaven, commented:

"These results significantly strengthen the geological story developing at Magno. We've now confirmed high-grade gold occurring alongside silver, zinc, lead, copper, tungsten and indium within the same structural framework. As each new data set is integrated -- from surface geochemistry to airborne geophysics, the evidence continues to point toward a large, district-scale mineralizing system. This gives us increasing confidence as we prepare for our inaugural drill program."

Gold supports district-scale exploration model

During the 2025 field season, Goldhaven collected 354 grab and chip samples across the Magno project as part of regional geological mapping and prospecting. Samples exhibiting elevated gold values were subsequently submitted for metallic screen analyses to better characterize coarse gold distribution.

The follow-up work confirmed numerous significant gold values, including assays up to 55.3 g/t Au. Selected follow-up metallic screen assay results are summarized in Table 1.

Unlike many isolated gold showings, the company's geological review indicates that the strongest gold mineralization is concentrated around the Magno and D zone mineralized centres rather than being randomly distributed across the property. These areas also correspond with significant structural features outlined by Goldhaven's recently completed airborne magnetic survey. This spatial association suggests the gold mineralization may be related to the structural framework that also controls the project's broader polymetallic mineralization, although additional work is required to determine the precise geological relationships.

The company considers this relationship particularly encouraging because multiple metal assemblages -- including gold, silver, copper, lead, zinc, tungsten and indium -- occur along common interpreted structural pathways, consistent with the company's evolving interpretation of a district-scale mineralizing system.

Integrating gold into the Magno geological model

The nearby Cassiar Gold deposits are interpreted to represent an orogenic style of mineralization, whereas the Magno project hosts a polymetallic carbonate replacement/skarn-style system. However, Goldhaven's geological team notes that the spatial relationship between gold mineralization, polymetallic showings and recently identified structural corridors across the Magno project may indicate a more extensive and long-lived hydrothermal system than previously recognized.

While additional work is required to determine the precise genetic relationship between the various styles of mineralization observed at Magno, the company believes the integration of geological mapping, surface geochemistry and airborne geophysics continues to strengthen drill targeting across the project.

The recently completed airborne magnetic survey defined a continuous district-scale structural corridor linking numerous historical mineral occurrences, while the new gold data demonstrate that high-grade gold mineralization is also concentrated within these same structural trends.

Previous surface exploration at Magno returned silver values up to 2,370 g/t Ag, lead exceeding 20 per cent, zinc up to 19.25 per cent, tungsten to 6,550 ppm (parts per million), indium to 334 ppm and copper values up to 2.87 per cent, highlighting the polymetallic nature of the mineralizing system.

Implications for drill targeting

The integration of high-grade gold results with recently defined district-scale structural architecture further expands the exploration potential at Magno. With multiple mineralized centres now exhibiting coincident geological, geochemical and geophysical signatures, the company believes its inaugural drill program will test the highest-priority targets generated through the integration of geological mapping, surface geochemistry and airborne geophysics.

Advancing toward drill testing

Goldhaven is preparing to commence its maiden drill program at Magno, which will test multiple priority targets generated through the integration of historical exploration, 2025 surface sampling, geological mapping and the recently completed airborne magnetic survey.

The initial program will focus on the Magno, D zone and Kuhn target areas where multiple lines of geological, geochemical and geophysical evidence converge.

Quality assurance/quality control

Rock samples reported in this release were collected during Goldhaven's 2025 exploration program at the Magno project. Samples selected for follow-up analysis were submitted to ALS Canada Ltd., an independent ISO/IEC 17025 accredited laboratory, for metallic screen fire assay analysis to better characterize coarse gold mineralization.

Goldhaven's quality assurance and quality control program includes the routine insertion of certified reference materials, blank samples and field duplicates into the sample stream. ALS also performs its own internal quality control procedures, including the use of standards, blanks and duplicates. The qualified person has reviewed the QA/QC data and considers the analytical results presented herein to be accurate and suitable for disclosure.

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 NI 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.