GoldHaven Resources Commences Maiden Diamond Drilling Program in Brazil to Test High-Priority Gold Targets 1200m Diamond Drill Program Begins at Copeçal Gold Project Vancouver, BC – October 3 rd, 2025 – GoldHaven Resources Corp. (CSE: GOH | OTCQB:
GoldHaven Resources Commences Maiden Diamond Drilling
Program in Brazil to Test High-Priority Gold Targets
1200m Diamond Drill Program Begins at Copeçal Gold Project
Vancouver, BC – October 3 rd, 2025 – GoldHaven Resources Corp. (CSE: GOH | OTCQB:
GHVNF | Frankfurt: 4QS) (“GoldHaven” or the “Company”) is pleased to announce
commencement of its maiden diamond drilling program at its prospective Copeçal gold
Project, located within the Juruena Magmatic Arc in north-central Brazil.
The upcoming drill program will test two key targets —Copeçal East and Copeçal West—
identified through a combination of soil and auger drilling geochemistry, magnetic, very low
frequency electromagnetic (VLF) and induced polarization (IP) surveys. These high -priority
targets represent the culmination of systematic and rigorous exploration work carried out
on a completely greenfields terrain.
Figure 1: Copeçal Gold Project showing the Priority Targets (East and West) with the VLF-EM survey area, the
High Resistivity Anomaly (> 1800 ohm*m - East), the High Conductivity Anomaly (< 250 ohm*m -West) relative
to coincident surface and saprolite Au Geochemistry Anomalies (> 100 ppb Au – East and > 50 ppb Au -
West).
The Copeçal Project has a notable exploration pedigree. The broader Juruena region was
first identified by AngloGold Ashanti after rigorous in -house generative work, as one of
Brazil’s most prospective greenfields belts. As part of their regional targeting strategy,
AngloGold launched an extensive stream sediment sampling program, which highlighted
- 2 -
several gold anomalous drainages—including those surrounding what is now the Copeçal
Project. This initial reconnaissance was followed by more detailed soil geochemistry and
geophysical programs, which defined the prominent east and west target zones GoldHaven
has started to drill.
Despite the early promise of the project, AngloGold Ashanti ultimately left Brazil for a
combination of factors, including a global downturn in exploration spending and a strategic
pivot following their discovery of the Tropicana deposit in Western Australia. This shift in
focus pulled resources away from Brazil at the time.
Jon Hill, GoldHaven’s Country Manager in Brazil and AngloGold Ashanti’s former Exploration
Manager during the project’s initial discovery phase, shared his thoughts on the significance
of the upcoming drilling:
“Copeçal has all the hallmarks of a compelling greenfields opportunity. As part of the
original team that identified the area, I’ve always believed this project warranted drill testing.
It sits in an underexplored but highly fertile mineral belt, and thanks to Ang loGold’s
foundational work, we have robust geochemical and geophysical datasets to guide us.
Exploration is rarely instant —it requires time, persistence, belief, and, of course, a bit of
luck. But with the caliber of the targets we’re testing, I’m confiden t that Copeçal has the
potential to host a n important mineralized system. I’m looking forward to writing the exam
on this project with GoldHaven.”
Copeçal’s strategic location positions it among a growing cluster of significant gold
discoveries and developments in the region. Projects such as G Mining’s multi -million-
ounce Tocantinzinho deposit are now in development, while junior explorers including
Altamira Gold, Cabral Gold, Keystone Mining, and Jangada Mines are making strides
towards potential development decisions, supported by widespread mineralization and
improving infrastructure.
- 3 -
Figure 2: Location of the Copeçal Gold Project within Alta Floresta gold province, with competitor locations.
Sourced from www.jangadamines.com
“We are thrilled to have drills turning at Copeçal as we launch our maiden diamond drilling
program in Brazil” stated Rob Birmingham, CEO of GoldHaven. “This is a pivotal moment for
GoldHaven, as we advance from target definition into true discovery work. Our team has
done an exceptional job building a robust geochemical and geophysical foundation, and
now we are in the exciting phase of testing those targets. With the caliber of anomalies we’ve
defined and the proven fertility of the Juruena Magmatic Arc, we believe Copeçal has the
potential to deliver a significant gold discovery. We look forward to keeping our shareholders
updated as results come in from this highly anticipated program.”
- 4 -
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.
Figure 3: Location of the Copeçal Gold Project within the prolific Juruena Gold Belt
- 5 -
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
The CSE and Information Service Provider have not reviewed and does not accept responsibility for
the accuracy or adequacy of this release.
Forward-Looking Statements
This news release contains “forward -looking information” within the meaning of applicable
Canadian securities legislation. Often, but not always, forward-looking information and information
can be identified by the use of words such as “plans”, “expects” or “does not expect”, “is expected”,
“estimates”, “intends”, “anticipates” or “does not anticipate”, or “believes”, or variations of such
words and phrases or state that certain actions, events or results “may”, “could”, “would”, “might”
or “will” be taken, occur or be achieved. Actual future results may differ materially. In particular, this
news release contains forward-looking information relating to the Company and the Property. The
forward-looking information reflects management's current expectations based on information
currently available and are subject to a number of risks and uncertainties that may cause outcomes
to differ materially from those discussed in the forward -looking information. Such risk factors may
include, among others, but are not limited to: general economic conditions in Canada and globally;
industry conditions, including governmental regulation and environmental regulation; the
availability of capital on acceptable terms; the need to obtain required approvals from regulatory
authorities; stock market volatility; competition for, among other things, skilled personnel and
- 6 -
supplies; incorrect assessments of the value of acquisitions; geological, technical, processing and
transportation problems; changes in tax laws and incentive programs; failure to realize the
anticipated benefits of acquisitions and dispositions; and the other factors. Although the Company
believes that the assumptions and factors used in preparing the forward -looking information are
reasonable, undue reliance should not be placed on such information and no assurance can be
given that such events will occur in the disclosed time frames or at all. Factors that could cause
actual results or events to differ materially from current expectations include: (i) adverse market
conditions; and (ii) other factors beyond the control of the Company. New risk factors eme rge from
time to time, and it is impossible for the Company’s management to predict all risk factors, nor can
the Company assess the impact of all factors on Company’s business or the extent to which any
factor, or combination of factors, may cause actual results to differ from those contained in any
forward-looking information. The forward -looking information included in this news release are
made as of the date of this news release and the Company expressly disclaims any intention or
obligation to update or revise any forward -looking information whether as a result of new
information, future events or otherwise, except as required by applicable law. Additional information
identifying risks and uncertainties that could affect financial results is contained in the Company’s
filings with Canadian securities regulators, which are available on the Company’s profile at
www.sedarplus.ca.