Mr. Rob Birmingham reports

GOLDHAVEN RESOURCES COMMENCES AUGER DRILL PROGRAM AT THE COPECAL GOLD PROJECT IN MATO GROSSO, BRAZIL

Goldhaven Resources Corp. has commenced the auger drill program at its 100-per-cent-owned Copecal gold project, located in the prolific Juruena terrane, Mato Grosso state, Brazil. Building on momentum from prior announcements, the company's geological team has been busy on site confirming auger drill rig access, finalizing the grid location and establishing accommodations for the full crew during the program. Yesterday, June 9, the drill rig began turning on the planned 2,000-metre (m) auger drilling program, designed to enhance geological understanding to support future diamond drilling campaigns.

The auger drilling program will focus primarily on defining a 3-D litho-geochemical footprint of gold distribution within the regolith profile beneath the extensive eastern gold-in-soil anomaly. Vertical auger holes will be drilled systematically from surface to the regolith-bedrock interface, expected to range between five and 30 m in depth, on a tight 100 m by 50 m grid. This methodical approach is expected to generate high-resolution data critical for the refinement of subsurface geological and structural models.

In addition to the eastern anomaly, the company will test several other zones of gold anomalism that align with interpreted structural trends, further leveraging the favourable geology observed across the Copecal project area.

Looking ahead, Goldhaven anticipates launching a drone-borne very-low-frequency (VLF) electromagnetic survey in early July. This survey will target the structural trends believed to be favourable hosts to gold mineralization, covering both the eastern and western gold-in-soil anomalies, as well as their potential strike extensions. The integration of VLF geophysics with auger geochemistry will provide a robust framework for finalizing diamond drill collar locations, thereby maximizing the efficiency and effectiveness of future drilling campaigns.

Rob Birmingham, chief executive officer of Goldhaven Resources, commented:

"We are excited to enter the next phase of exploration at Copecal. The combination of high-resolution auger geochemistry and drone-based geophysics places us in a strong position to accurately delineate high-priority targets. This integrated approach is designed to derisk our diamond drilling program and unlock the project's full potential. The company remains committed to advancing its Brazilian exploration portfolio in a disciplined, data-driven manner, leveraging best-in-class techniques to generate value for shareholders."

About the Copecal gold project: a brief history

The Copecal gold project is strategically situated within the Alta Floresta gold province, a historically productive region that has yielded substantial gold discoveries since the late 1970s. Goldhaven's tenements cover a total of 3,681 hectares in a geologically favourable setting within the Juruena gold province of Brazil.

The Juruena gold province, also known as the Juruena magmatic arc, is an orogenic belt highly prospective for mesothermal shear-related and intrusion-related gold deposits, such as G-Mining's Tocantinzinho deposit. Additionally, the region hosts recently identified porphyry-style deposits (Serabi, Jaca) and epithermal-style deposits (X1, Aura). The presence of multiple deposit styles, along with the confirmation of large-scale gold deposits in the Juruena province of Brazil, underscores the significant potential of the Copecal gold project.

Recent exploration programs, including geochemical soil sampling, drone-mounted magnetometry surveys and historical drilling data, indicate the presence of multiple gold-bearing structures. Notably, AngloGold Ashanti previously conducted systematic exploration on the property from 2010 to 2016, including auger and air-core drilling, geophysical surveys, and rock geochemistry, identifying multiple zones of anomalous gold mineralization.

The Copecal gold project benefits from extensive historical work, with AngloGold Ashanti's exploration confirming gold and arsenic anomalies, indicative of significant mineralization potential. Soil sampling grids and follow-up auger drilling in key areas revealed consistent gold values over wide zones, further supporting the presence of a substantial mineralized system.

About Goldhaven Resources Corp.

Goldhaven Resources is a Canadian junior exploration company focused on acquiring and exploring highly prospective land packages in North America and South America. The company's projects include: (i) the flagship Magno project, a district-scale polymetallic property adjacent to the historic Cassiar mining district in British Columbia; (ii) the Three Guardsman project, which exhibits significant potential for copper and gold-skarn mineralization; (iii) 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 (iv) three critical mineral projects with extensive tenement packages totalling 123,900 hectares: the Bahia South, Bahia North and Iguatu projects, located in Brazil.

Qualified person

The scientific and technical information disclosed in this document has been reviewed and approved by Jonathan Victor Hill, BSc (honours), FAusIMM, a qualified person consistent with National Instrument 43-101 and country manager of Goldhaven.

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