Mr. Rob Birmingham reports

GOLDHAVEN UPSIZES FLOW-THROUGH FINANCING TO UP TO $1.2 MILLION ON STRONG DEMAND TO EXPAND 2026 DRILL PROGRAM AT MAGNO

Goldhaven Resources Corp., due to strong investor demand, has increased the size of its previously announced flow-through non-brokered financing to gross proceeds of up to $1.2-million.

The additional capital further strengthens the company's fully financed 2026 exploration program at its flagship Magno project in the Cassiar district of British Columbia and is expected to support an expanded drill campaign targeting a large-scale, multiphase mineral system with significant silver and critical metals exposure.

Highlights:

• Financing upsized on demand: increased to up to $1.2-million, reflecting strong investor demand;
• Drilling expansion under way: program expected to grow beyond the initial drilling approximately 5,000 metres, with flexibility to expand based on results;
• Multiple high-priority targets: drilling to focus on the Magno, Kuhn and D zones -- areas with strong grades and clear geological vectors;
• High-grade surface results: up to 2,370 grams per tonne (g/t) silver, more than 20 per cent lead, 19.25 per cent zinc and up to 6,550 parts per million (ppm) tungsten;
• District-scale opportunity: 37,000-plus-hectare land package covering a large, underexplored intrusive-driven system;
• Critical metals exposure: direct leverage to silver and key critical minerals, including tungsten and indium;
• 2026 catalyst-rich program: airborne geophysics plus expanded drilling designed to unlock system scale and define higher-grade zones.

"The level of investor interest reflects growing recognition of the opportunity at Magno," said Rob Birmingham, chief executive officer of Goldhaven. "With drilling set to expand beyond our initial program, we are entering a catalyst-rich phase where we can begin to test the scale of this system across multiple high-priority targets. We believe Magno has the characteristics of a large, multiphase mineral system and this program is a key step in advancing that potential.

"In addition, with the recently announced LIFE offering, we see a clear path to further expanding our drill program as the year progresses."

The proposed offering, together with the flow-through financing completed earlier in 2026, will bring total flow-through proceeds raised by the company this year to approximately $3.2-million. These funds are expected to support the company's initial drill program at Magno, with potential for further expansion through the company's recently announced LIFE (listed issuer financing exemption) offering.

The flow-through shares will qualify as flow-through shares within the meaning of the Income Tax Act (Canada) and are expected to qualify as critical mineral flow-through shares. No warrants will be issued in connection with the offering.

The gross proceeds will be used to incur eligible Canadian exploration expenses that qualify as flow-through critical mineral mining expenditures, which the company intends to renounce to subscribers with an effective date no later than Dec. 31, 2026.

The company may pay finders' fees in connection with the offering in accordance with applicable securities laws and exchange policies. Completion of the offering is subject to customary closing conditions, including regulatory approvals. All securities issued will be subject to a statutory hold period of four months and one day.

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 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, which exhibits significant potential for copper and gold-skarn mineralization; the Copecal gold project, a drill-ready gold project located in Mato Grosso, Brazil, with a six-kilometre strike of anomalous gold-in-soil samples; and three critical mineral projects with extensive tenement packages totalling 123,900 hectares, namely the Bahia South, Bahia North and Iguatu projects, located in Brazil.

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