Mr. Rob Birmingham reports

GOLDHAVEN COMPLETES 2,320-LINE-KM DISTRICT-SCALE AIRBORNE SURVEY AT MAGNO, ADVANCING 2026 DRILL TARGET GENERATION

Goldhaven Resources Corp. has successfully completed its district-scale quantitative magnetic tensor (QMAGT) airborne geophysical survey over its 100-per-cent-owned Magno critical minerals project, located in the prolific Cassiar mining district of Northern British Columbia.

The district-scale airborne program was successfully completed as planned, with approximately 2,320 line kilometres of high-resolution geophysical data collected across Goldhaven's 37,000-plus-hectare land package, creating one of the largest and most comprehensive modern airborne magnetic data sets ever acquired over the project.

The dataset will be integrated with geological mapping, historical drilling and recent high-grade surface sampling, including values of up to 2,370 grams per tonne silver, 6,550 parts per million (ppm) tungsten and 334 ppm indium, to prioritize drill targets across multiple mineralized trends. With data acquisition now complete, Goldhaven has transitioned into the interpretation and drill target generation phase of its 2026 exploration program.

Survey highlights

• 2,320-plus line kilometres of high-resolution QMAGT data successfully collected;
• Survey flown at 100-metre line spacing across the Magno project;
• Covers a 37,000-plus-hectare district-scale land package in the Cassiar mining district;
• Designed to enhance targeting of silver, lead, zinc, tungsten and copper mineralization;
• Final processing, inversion modelling and geological interpretation currently under way;
• Results to be integrated with historical exploration, geological mapping and recent surface sampling to prioritize 2026 drill targets.

Rob Birmingham, president and chief executive officer of Goldhaven, stated: "I've been waiting for this data set since the day we assembled this land package. For the first time, we can evaluate Magno as one connected mineral system rather than a collection of isolated historical showings. The preliminary data already highlight an extensive structural framework and numerous magnetic features across the property. Several of these features appear spatially associated with known historical mineral occurrences, while additional anomalies have been identified in previously underexplored areas, and we're now integrating those observations with geology and geochemistry to refine drill targets. I believe the work completed over the coming weeks will define our most systematic drill program to date across the Magno district."

Preliminary observations

Preliminary processed imagery highlights an extensive structural framework together with numerous discrete magnetic domains and magnetic breaks distributed throughout the project. Several features appear spatially associated with known historical mineral occurrences, while additional anomalies have been identified in previously underexplored areas.

The company cautions that interpretation of the data set continues and that no conclusions regarding the significance of individual anomalies should be drawn until final processing and integrated geological interpretation have been completed.

District-scale critical minerals opportunity

The Magno project hosts numerous historical silver-lead-zinc-tungsten occurrences and emerging copper targets within one of British Columbia's most prospective critical minerals districts.

Unlike historical exploration, which largely focused on isolated showings, Goldhaven has assembled and is systematically evaluating the district as a unified mineral system. The completed QMAGT survey provides the first property-wide high-resolution magnetic data set capable of mapping lithological contacts, structural corridors and intrusive bodies across the company's extensive land package.

By combining modern geophysics with geological mapping, geochemistry and historical exploration data, Goldhaven aims to identify extensions of known mineralized systems while testing previously unrecognized targets concealed beneath shallow cover.

Why QMAGT?

Unlike conventional airborne magnetic surveys, QMAGT technology provides a higher-resolution view of structural corridors, intrusive bodies and lithological contacts that may control mineralization. The technology is designed to improve targeting of carbonate replacement, skarn and intrusive-related systems across the Magno district.

Integration with previous exploration

The airborne survey complements Goldhaven's successful surface exploration programs, which have identified numerous high-grade critical mineral occurrences across the project, including:

• Silver values up to 2,370 g/t Ag (silver);
• Lead values exceeding 20 per cent Pb (lead);
• Zinc values up to 19.25 per cent Zn (zinc);
• Tungsten values up to 6,550 ppm W (tungsten);
• Indium values up to 334 ppm In (indium).

The company believes integrating these results with the newly acquired QMAGT data set will significantly improve vectoring toward mineralized systems and refine drill targeting across the Magno, Kuhn and D zone target areas.

Next steps

With acquisition of the airborne survey now complete, Goldhaven is focused on:

• Completion of final QMAGT processing and inversion modelling;
• Integration of geophysical, geological and geochemical data sets;
• Prioritization of high-conviction drill targets;
• Advancement of permitting activities;
• Commencement of the company's inaugural district-scale drill program.

The company expects to provide additional technical updates, including interpreted QMAGT products, geological interpretations and priority drill target generation, as final processing is completed and integrated into the 2026 exploration program.

LIFE offering

The company also announces that, further to its news release dated June 9, 2026, where it announced the completion of a private placement of units, the company has paid additional cash finders' fees in the amount of $22,400 and issued an additional 89,600 finders' warrants. The total finders' fees paid by the company in connection with the private placement were $213,465 in cash and 991,760 finders' warrants.

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.