GoldHaven Resources Commences Inaugural Diamond Drilling Program at Copeçal Gold Project, Brazil First Hole Shows Signs of Potential Mineralized Hydrothermal System at Depth
GoldHaven Resources Commences Inaugural Diamond Drilling
Program at Copeçal Gold Project, Brazil
First Hole Shows Signs of Potential Mineralized Hydrothermal
System at Depth
Vancouver, BC – October 9th, 2025 – GoldHaven Resources Corp. (CSE: GOH | OTCQB:
GHVNF | Frankfurt: 4QS) (“GoldHaven” or the “Company”) is pleased to announce that its
inaugural diamond drilling program is underway at the Copeçal 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.
Initial geological observations from the first hole are highly encouraging. The hole has
intersected approximately 30 metres of saprolite (deeply weathered rock) before entering
strongly sheared and hydrothermally altered basement gneiss characterized by p ervasive
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 metres 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 (47.6mm diameter)
• Total program: 1,200 metres planned across 5-6 angled holes testing both East and West
Zone targets with holes up to 150 metres depth
• Core samples being processed at ALS Global laboratories (sample preparation in Cuiabá,
assays in Belo Horizonte)
• Assay results expected in 4 -6 weeks following completion of drilling and laboratory
analysis
• East Zone target defined by coincident gold and arsenic soil anomaly (>100 ppb Au)
overlying interpreted structures identified through VLF electromagnetic and magnetic
surveys
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Figure 1: GoldHaven team begins drilling east target on Copeçal Gold project
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 typ e of geological
environment that hosts significant gold mineralization in orogenic and intrusion-related gold
systems within the Juruena Gold Province.
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The East Zone target area exhibits a robust gold and arsenic geochemical signature at
surface, with soil values exceeding 100 ppb gold over a 3 -kilometre 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.
Figure 2: GoldHaven core being readied for transport in Brazil
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Figure 3: Location of the Copeçal Gold Project within Alta Floresta gold province, with competitor locations.
Sourced from www.jangadamines.com
“The start of our maiden drill program marks a transformational milestone for GoldHaven
Resources,” said Rob Birmingham, President and CEO. “This moment is the result of
systematic exploration, including a 107 -hole auger program and ongoing VLF surveys tha t
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 valida te
our targeting model and align with mineralized systems across the Juruena Gold Province.
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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 Copeçal Gold Project: A Brief History
The Copeçal 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 i dentified porphyry -style deposits
(e.g., Serabi, Jaca) and epithermal -style deposits (e.g., 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 Copeçal 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 Copeçal 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.
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Figure 3: Location of the Copeçal Gold Project within the prolific Juruena Gold Belt
About GoldHaven Resources Corp.
GoldHaven Resources Corp. 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 Copeçal Gold Project, a drill -
ready gold project located in Mato Grosso, Brazil with a 6km strike of anomalous gold in soil samples;
and (iv) three critical mineral projects with extensive tenement packages totalling 123,900 hectares:
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, B.Sc. Hons, FAusIMM, an independent Qualified Person consistent
with NI 43-101 and Country Manager of GoldHaven.
On Behalf of the Board of Directors
Rob Birmingham, Chief Executive Officer
For further information, please contact:
Rob Birmingham, CEO
www.GoldHavenresources.com
Office Direct: (604) 629-8254
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