Goldhaven Resources begins diamond drilling at Copecal

Mr. Rob Birmingham reports GOLDHAVEN RESOURCES COMMENCES INAUGURAL DIAMOND DRILLING PROGRAM AT COPECAL GOLD PROJECT, BRAZIL Goldhaven Resources Corp.'s inaugural diamond drilling program is under way at the Copecal gold project in Mato Grosso state, Brazil. The first drill hole targeting the east zone priority target is progressing well and is approaching its planned depth of 100 metres (m). Initial geological observations from the first hole are highly encouraging. The hole has intersected approximately 30 m of saprolite (deeply weathered rock) before entering strongly sheared and hydrothermally altered basement gneiss characterized by pervasive chlorite, sericite and quartz alteration. This geological setting is consistent with the company's exploration model and supports the potential for a mineralized hydrothermal system at depth. Highlights: First drill hole has intersected approximately 30 m of saprolite overlying strongly sheared and hydrothermally altered basement gneiss in the east zone target; Alteration assemblage includes chlorite, sericite and quartz -- classic indicators of hydrothermal fluid activity associated with gold mineralization in orogenic and intrusion-related gold systems; Drilling contractor Ecodrill utilizing NQ-size diamond core (47.6-millimetre (mm) diameter); Total program: 1,200 m planned across five to six angled holes testing both east and west zone targets, with holes up to 150 m depth; Core samples being processed at ALS Global laboratories (sample preparation in Cuiaba, assays in Belo Horizonte); Assay results expected in four to six weeks following completion of drilling and laboratory analysis; East zone target defined by coincident gold and arsenic soil anomaly (more than 100 parts per billion (ppb) gold (Au)) overlying interpreted structures identified through VLF (very-low-frequency) electromagnetic and magnetic surveys. The initial geological observations are highly encouraging and validate Goldhaven's systematic exploration approach. The transition from thick saprolite into intensely sheared and altered gneiss at relatively shallow depths indicates that the drill hole has entered a structurally deformed and hydrothermally active zone -- precisely the type of geological environment that hosts significant gold mineralization in orogenic and intrusion-related gold systems within the Juruena gold province. The east zone target area exhibits a robust gold and arsenic geochemical signature at surface, with soil values exceeding 100 ppb gold over a three-kilometre (km) strike length. This geochemical anomaly is coincident with interpreted structures -- classic geological traps for gold deposition -- identified through the company's VLF electromagnetic survey and historical geophysical data. The drilling program is designed to test whether the surface geochemical signature extends to depth and is associated with economic gold grades within the structurally prepared host rocks. "The start of our maiden drill program marks a transformational milestone for Goldhaven Resources," said Rob Birmingham, president and chief executive officer. "This moment is the result of systematic exploration, including a 107-hole auger program and ongoing VLF surveys that refined our targets and mapped structural controls. Early geological observations from COP-25-001 show strong deformation and alteration where saprolite meets basement rock -- exactly what we hoped to see. While we await assay results, these features validate our targeting model and align with mineralized systems across the Juruena gold province. Supported by AngloGold Ashanti's prior work and excellent infrastructure in Mato Grosso, we're now advancing into the discovery phase and look forward to sharing results soon." 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 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 km 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 Igautu 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, an independent qualified person consistent with National Instrument 43-101 and country manager of Goldhaven. We seek Safe Harbor.