Altamira Gold Intersects Porphyritic Intrusive Rocks in Initial Drill Holes at Two Regional Targets Within the Cajueiro District, Brazil
Altamira Gold Intersects Porphyritic Intrusive
Rocks in Initial Drill Holes at Two Regional
Targets Within the Cajueiro District, Brazil
Vancouver, British Columbia--(Newsfile Corp. - October 2, 2025) -
Altamira Gold Corp. (TSXV: ALTA)
(FSE: T6UP) (OTCQB: EQTRF),
("
Altamira
" or the "
Company
") is pleased to provide an update on
recent drilling activities on district-scale drill targets within the Cajueiro project area, Brazil.
Highlights:
Initial scout drilling on the first two of nine porphyry targets in the Cajueiro district has been
completed. The Tavares Norte and Morro Verde targets are located within a corridor extending 8
kilometers east-west which is defined by a series of gold anomalies in soils and rock chip samples
with coincident hydrothermal alteration and magnetic anomalies. The two mineral resources
defined to date at Cajueiro Central and Maria Bonia are also located within or adjacent to this
structural corridor
A total of 1,256m in five drill holes has been completed to date and assay results are pending.
Four of the five holes intersected porphyritic intrusive rocks, with associated potassic alteration
and hydrothermal breccias and quartz veining, similar in style to the recently identified Maria Bonita
gold deposit
A second deep diamond drill hole is currently in progress at Maria Bonita, and is aimed at further
testing the depth extension of the Maria Bonita deposit towards the south
CEO Mike Bennett commented; "We have completed the first scout drill tests at two of our nine district
drill targets at Cajueiro. Four of the first five scout drill holes have intersected porphyritic intrusive
rocks with potassic alteration and quartz veining. This supports our geological model of multiple
porphyritic centres occurring in clusters or alignments within the Cajueiro District and points to
similarities with the porphyry-style mineralization already identified at the Maria Bonita Mineral
Resource.
Importantly, we are also seeing disseminated and vein hosted sulphide minerals, including
chalcopyrite and molybdenite, suggesting proximity to a higher temperature hydrothermal centre.
These are encouraging early signs, and we will continue to advance the testing of the district
exploration targets in parallel with resource extension and delineation drilling at both the Maria Bonita
and Central gold deposits."
Cajueiro District
The Cajueiro district is located approximately 75km NW of the town of Alta Floresta in the state of Mato
Grosso (Figure 1) in central western Brazil. The project is easily accessible by road, lies on open
farmland and has grid power and a local water supply. Cajueiro is the most advanced of the key projects
that Altamira controls in the region (Figure 1).
Figure 1: Location of Altamira Gold's projects in the Alta Floresta Belt.
To view an enhanced version of this graphic, please visit:
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The Cajueiro district consists of two independently estimated gold mineral resources at Cajueiro Central
and Maria Bonita, plus a series of additional untested exploration targets within a radius of 8km of
Cajueiro Central.
The Cajueiro Central area has a current open pit resource
1
of 5.66Mt @ 1.02 g/t gold for a total of
185,000 oz in the Indicated Resource category and 12.66Mt @ 1.26 g/t gold for a total of 515,000 oz in
the Inferred Resource category (estimated using a cut-off grade of 0.25g/t gold and a gold price of
US$1,500/oz).
The Maria Bonita open-pit resource consists of Indicated Resources of 24.19Mt @ 0.46g/t gold (for a
total of 357,800oz) and Inferred Resources of 25.64Mt @ 0.44g/t gold (for a total of 362,400oz)
2
. These
resources were calculated using a 0.2 g/t gold cut-off grade and a gold price of US$2,780/oz. These
resources include near-surface saprolite Indicated Resources of 2.02Mt @ 0.59g/t gold (38,000oz) and
Inferred Resources of 0.68Mt @ 0.40g/t gold (8,700oz).
The Maria Bonita porphyry gold deposit is interpreted as part of a district-scale, porphyry-related
mineralizing event.
Scout Drilling of District Targets
Scout drilling has recently tested the Tavares Norte and Morro Verde targets (Figure 2).
These
prospects are located within a pronounced east-west corridor extending over 8km and defined by an
alignment of gold anomalies in soils and rock chips. The corridor is also partially defined by discrete
sub-cropping quartz porphyry intrusions.
Figure 2: Recent scout drill targets Tavares Norte and Morro Verde in relation to the defined Mineral
Resources at Cajueiro Central and Maria Bonita (white labels) and undrilled district targets (yellow). An
alignment of six of the targets occur in close spatial association to a pronounced east-west fault corridor
marked by later gabbroic dykes.
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Tavares Norte Target
The Tavares Norte target is located 1km NW of the Central resource area (Figures 2 and 3)
.
Two drill
holes (aggregate 425 metres) have been completed to test a gold-in-soil anomaly of up to 497ppb gold,
that coincides with strong hydrothermal alteration of brecciated felsic intrusive rocks. The target forms a
minor positive topographic anomaly with moderate outcrop. Sub-cropping quartz veined felsic intrusives
contain quartz veins that are similar to Maria Bonita. Surface grab samples
+
have returned values up to
27.5g/t gold, 929ppm copper and 356ppm molybdenum (see press release dated September 2, 2025).
Drill hole TVN001 was completed to a depth of 198m and intersected quartz porphyry intrusive and
associated magmatic breccias from 8 to 88 metres, showing potassic alteration with overprinted sericite
and chlorite, along with sporadic quartz veining. Minor molybdenite and pyrite suggest proximity to a
higher-temperature part of the hydrothermal system.
+
By their nature, grab samples are not representative of the bulk metal content of a mineralized zone.
Drill hole TVN002, located approximately 100 metres east of TVN001 and targeting the centre of the
gold-in-soil anomaly, was completed to a depth of 227m and intersected 60 metres of quartz porphyry
intrusive. This interval contained preserved potassic alteration alternating with moderate sericite
alteration, with the best-developed quartz stockwork observed between 71 and 80 metres.
Morro Verde Target
Located 1.5 km east of Tavares Norte, Morro Verde lies within a broad area of sericite alteration linking
the two targets (Figures 2 and 3). Recent mapping identified outcrops of quartz-veined quartz porphyry
and intrusive breccias within the alteration zone. Rock chip grab samples have returned up to 5.1 g/t
gold, 356 ppm molybdenum, and 366 ppm copper (see press release dated September 2, 2025). The
target is defined by gold-in-soil anomalies, drone magnetic lows indicative of hydrothermal alteration,
and surface evidence of sericite alteration and quartz veining, and has been tested with three recce drill
holes.
Figure 3: Scout drill holes Tavares Norte and Morro Verde prospects in relation to the Baldo zone in the
northern part of the Central mineral resource.
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Three recce drill holes for an aggregate of 831m have been completed to date in this campaign on two
separate areas at Morro Verde.
MRV001 and MRV002 were drilled on the same section to test a sub-cropping area of gossanous,
sericitized rocks with grab sample values up to 5.2 g/t gold, 366 ppm copper and 356 ppm molybdenum.
MRV002 was drilled to a depth of 90m and intersected 65m of quartz veined felsic porphyry from surface
with potassic alteration overprinted by chlorite and sericite alteration. MRV003 was completed to a
depth of 292m and intersected 43m of quartz veined porphyry.
Figure 4: Drill hole MRV002 (32m); A-type hydrothermal quartz veins with sericitic haloes within potassic
altered porphyry.
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Drill assays are pending for these district recce drill holes. Additional scout drilling is planned at the other
district targets within the coming weeks and months, aimed at identifying additional mineralized porphyry
centres similar to the Maria Bonita porphyry gold deposit.
Follow up Deep Drilling at Maria Bonita
Results from the recently completed diamond drill hole MBA032 at Maria Bonita are still pending but as
previously reported (see press release dated September 2, 2025), the hole cut approximately 500m of
prospective quartz porphyry alteration and mineralization. Follow up drilling is currently continuing with a
second deep drill hole in progress which is designed to continue testing the southerly depth extensions
to the Maria Bonita mineral resource.
Increasing Altamira Gold's Profile
Altamira Gold has entered into the following agreements to help raise its visibility in the public markets.
The Company has entered into a Services Agreement (the "CanaCom Agreement") with 2686362
Ontario Corporation dba CanaCom Group ("CanaCom Group") pursuant to which CanaCom Group has
agreed to provide digital content, marketing and media distribution services to the Company. Pursuant
to the terms of the CanaCom Agreement, such marketing services are to be provided over a 12-month
period, for a fee of C$60,000 plus applicable taxes. CanaCom Group is a full-service marketing agency
based in Oakville, Ontario and is headed by Jordan Lutz. CanaCom Group provides digital marketing
awareness via advertising through its fully owned platform theDeepDive.ca, which includes both video
and written content coverage of Canadian small-cap stories.
Altamira Gold has also agreed to the terms of a media services contract (the "Market One Contract")
with Market One Media Group Inc. ("Market One") pursuant to which Market One will create tailored
marketing programs for the Company. Altamira will pay Market One $24,000 plus applicable taxes for
these services and the Market One Contract will have a term of 12 months. Market One provides on
camera interviews for broadcast on BNN Bloomberg, editorial content, and online video services to its
extensive roster of publicly listed companies.
Qualified Person
Guillermo Hughes, FAIG and M Aus IMM., a consultant to the Company as well as a Qualified Person as
defined by National Instrument 43-101, supervised the preparation of the technical information in this
news release.
About Altamira Gold Corp.
The Company is focused on the exploration and development of gold and copper projects within western
central Brazil, strategically advancing five projects spanning over 100,000 hectares within the prolific
Juruena Gold Belt - an area that has historically yielded over 6 million ounces of placer gold
3
. The
Company's advanced Cajueiro project contains two gold deposits. The central area comprises NI 43-
101 resources of 5.66Mt @ 1.02 g/t gold for a total of 185,000 oz in the Indicated Resource category
and 12.66Mt @ 1.26 g/t gold for a total of 515,000oz in the Inferred Resource category. In addition, the
Maria Bonita gold deposit comprises additional open pit Indicated Resources of 24.19Mt @ 0.46g/t for
a total of 357,800oz, and Inferred Resources of 25.64Mt @ 0.44g/t for a total of 362,400oz.
Ongoing exploration and fieldwork at Cajueiro indicate the presence of multiple porphyry gold systems,
reinforcing its potential for district-scale development. These hard-rock gold sources align with historical
alluvial gold production, highlighting the region's exceptional gold endowment and potential scalability.
With two independently established mineral resources, a highly prospective geological setting and a
track record of significant discoveries, the Company is well-positioned to unlock further value across its
extensive land package.
1
NI 43-101 Technical Report, Cajueiro Project, Mineral Resource Estimate: Global Resource Engineering, Denver Colorado USA, 10
th
October
2019; Authors K. Gunesch, PE; H. Samari, QP-MMSA; T. Harvey, QP-MMSA
2
NI43-101 Technical Report, Mineral Resource for the Maria Bonita Prospect: VMG Consultoria, Belo Horizonte, Minas Gerais, Brazil.
12
th
June
2025; Author V. Myadzel
3
Juliani, C. et al; Gold in Paleoproterozoic (2.1 to 1.77 Ga) Continental Magmatic Arcs at the Tapajós and Juruena Mineral Provinces
(Amazonian Craton, Brazil): A New Frontier for the Exploration of Epithermal-Porphyry and Related Deposits. Minerals 2021, 11, 714.
https://doi.org/10.3390/min11070714
On Behalf of the Board of Directors,
ALTAMIRA GOLD CORP.
"Michael Bennett"
Michael Bennett
President & CEO
Tel: 604.676.5661
Toll-Free:1-833-606-6271
www.altamiragold.com
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
release.
The securities described herein have not been registered under the U.S. Securities Act or any state
securities laws, and may not be offered or sold in the United States absent registration or an
applicable exemption from registration requirements under the U.S. Securities Act and any applicable
state securities laws.
Forward-looking Statements
Certain information contained herein constitutes "forward-looking information" under Canadian
securities legislation.
Forward-looking information includes, but is not limited to, statements with
respect to the extension of the Warrants.
Generally, forward-looking information can be identified by
the use of forward-looking terminology such as "will", "intends" or variations of such words and
phrases or statements that certain actions, events or results "will" occur.
Forward-looking statements
are based on the opinions and estimates of management as of the date such statements are made
and they are subject to known and unknown risks, uncertainties and other factors that may cause the
actual results to be materially different from those expressed or implied by such forward-looking
statements or forward-looking information, including the receipt of all necessary regulatory approvals.
Although management of the Company has attempted to identify important factors that could cause
actual results to differ materially from those contained in forward-looking statements or forward-looking
information, there may be other factors that cause results not to be as anticipated, estimated or
intended.
There can be no assurance that such statements will prove to be accurate, as actual results
and future events could differ materially from those anticipated in such statements.
Accordingly,
readers should not place undue reliance on forward-looking statements and forward-looking
information.
The Company will not update any forward-looking statements or forward-looking
information that is incorporated by reference herein, except as required by applicable securities laws.
Notes
Gold analysis has been conducted by SGS method FAA505 (fire assay of 50g charge), with higher
grade samples checked by FAA525. Analytical quality is monitored by certified references and
blanks. Until dispatch, samples are stored under the supervision the Company's exploration office.
The samples are couriered to the assay laboratory using a commercial contractor. Pulps are returned
to the Company and archived. Drill holes results are quoted as down-hole length weighted
intersections.
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