Altiplano Confirms Santa Beatriz Vein at Depth and Along Strike with Massive Chalcopyrite Intercepts.
Altiplano Metals Inc.
250 Southridge NW, Suite 300
Edmonton, AB
Canada
T6H 4M9
Altiplano Confirms Santa Beatriz Vein at Depth and Along Strike with Massive Chalcopyrite Intercepts.
EDMONTON, AB, April 29th, 2025 – Altiplano Metals Inc. (TSXV: APN) (WKN: A2JNFG) ("Altiplano" or
the "Company") is pleased to announce preliminary drill results from the first drill program at the
historic Santa Beatriz copper-gold mine, located approximately 45 km south of La Serena, Chile, and 30
km from the El Peñón processing plant.
Highlights:
A total of 655.6 meters were drilled in four holes (25SB-001 - 25SB-004).
The drilling confirmed the continuity of the vein for at least 100 meters along the strike and
approximately 40 m down dip below the lowest previous production level.
The average width of the vein was 2.28 m with a maximum width of 3 m.
Hole 25SB-002 intersected the vein through a fault zone; however, the lateral continuity of the
vein has been confirmed with the adjacent holes 25SB-001 and 25SB-003.
Hole 25SB-004 intersected 2.9 m of vein with intervals up to 60 cm of massive chalcopyrite (assay
results pending).
The confirmation of the vein continuity allows for planning and the potential development of four
additional extraction levels for mineralized material.*
Preliminary observations of the core confirm the mineralized zones, and the alteration minerals
of the vein are identical to those of the previously mined Farellon vein.
Strong potassic alteration wi th associated magnetite veinlets and trace disseminations of
molybdenite and chalcopyrite have been discover ed at deeper levels suggesting potential for
porphyry-type Cu-Au mineralization at depth.
Quartz with epidote were observed in several intervals of hole SB25-002 suggests the overprinting
of epithermal gold mineralization. This event ma y explain higher gold in concentrate from the
historical sales records from Santa Beatriz.
All the core is being processed for logging and sampling.
President and Chief Executive Officer Alastair McIntyre comments:
"The preliminary drill results confirming the vein continuity at lower levels along strike at Santa Beatriz
is very encouraging. This information provides valua ble support for mine development plans to access
additional mineralized material at lower levels. Assay results are expected in several weeks, but the visual
presence of massive copper sulphides validates that the structure and mineralogy of the Santa Beatriz vein
continues below surface and is identical to the Farellon vein. Our experience with mining Farellon showed
that the vein widened at lower levels and improved in grade. In addition, the presence of quartz and
epidote indicates the potential for secondary gold m ineralization that can be potentially recovered in
concentrate at the plant.”
Altiplano Metals Inc.
250 Southridge NW, Suite 300
Edmonton, AB
Canada
T6H 4M9
*Any decision to develop the Santa Beatriz historical mine is not based on a feasibility study of mineral reserves demonstrating economic and
technical viability and there is increased uncertainty and economic and technical risks of failure associated with the production decision.
Intervals are core length. True width is estimated at 80-90% of the core length.
Figure 1. Plan view sh owing the completed DDH, underground geology of level 416, and the vein
thickness intersected in each hole.
Drilling Summary
Altiplano Metals Inc.
250 Southridge NW, Suite 300
Edmonton, AB
Canada
T6H 4M9
A total of 655.6 meters of core drilling were completed between March 14 and April 20 th in four holes
(25SB-001 — 25SB-004; see Figure 1). The four holes inte rsected the targeted vein at elevations between
365 and 391 metres above sea level, this is down to 51 m below the lowest level 416. The hole 25SB-002
intersected the vein through a fault zone. However, the lateral continuity of the vein has been confirmed
with the adjacent holes 25SB-001 and 25SB-003. The average width of the vein is 2.28 m with a maximum
of 3 m in hole 25SB-003 and a minimum of 1.25 m in hole 25SB-001.
The vein displays similar characteristics in the four holes consisting of massive magnetite with bands and
patches of chalcopyrite and lesser pyrite. The main difference lies in the relative concentration magnetite
vs chalcopyrite which reflects Cu /Fe grades (Figure 2). The hole 25S B-004 intersected up to 60 cm of
massive chalcopyrite, which is consistent with high Cu grades sampled underground in the level 416
suggesting continuity on the grades along with the vein (Figures 1 and 2). Massive chalcopyrite is mostly
present replacing apatite and actinolite phenoc rysts. Gangue minerals are dominantly apatite and
actinolite altered to chlorite with minor interstitial calcite (Figure 2) with is consistent with the iron oxide
copper gold vein systems in the region.
Figure 2. Photos of core from holes 25SB-002 a nd 25SB-004 showing the relative concentration of
magnetite vs chalcopyrite and gangue minerals (apatite and chloritized actinolite) in the vein.
Altiplano Metals Inc.
250 Southridge NW, Suite 300
Edmonton, AB
Canada
T6H 4M9
The vein is hosted by a diorite intrusive that varies in texture from coarse grained to micro-diorite. The
rock displays propylitic alteration represented by ep idote associated with chlorite and pyrite dominantly
in veinlets hosted by micro-diorit e at shallow levels (<150 m depth). Introduction of quartz with vuggy
texture has been observed associated with epidot e in several intervals of hole SB25-002 suggesting
overprinting of epithermal gold mineralization. This event may explain higher gold in concentrate from
historical concentrate records. Also, potassic alteration represented by a mineral association of k-feldspar,
shreddy biotite, and magnetite. The magnetite is present in interstitial spaces between feldspars
phenocrysts and as veinlets crosscutting the rock associated with traces of molybdenite and chalcopyrite.
Potassic alteration with this mineral association has been observed only in coarse grained diorite at
deeper levels (> 250 m depth) inte rsected by hole 25SB-004 which wa s extended to 303.45 m (Figure 3).
This alteration resembles porphyry-type mineralizatio n, however further deeper exploration is required
to understand better the geological context and significance of this alteration.
Figure 3. Photos of core showing potassic altera tion in hole 25SB-004 at 300 m depth and propylitic
alteration in hole 25SB-002 at 88 m depth.
Altiplano Metals Inc.
250 Southridge NW, Suite 300
Edmonton, AB
Canada
T6H 4M9
John Williamson, B.Sc., P.Geol., a Qualified Person as defined by NI 43-101, has reviewed, and approved
the technical contents of this document
Altiplano has generated over C$23.3 million from the recovery and sale (aft er processing costs) of more
than 7.4 million pounds of copper with an average grade of 1.8% Cu (Jan 2018 to Dec 2024). Cash has
been re-invested into acquisition, exploration, new equipment, underground drilling, expanding
underground development and production, and the completion of the El Peñón copper-gold-iron
processing facility located 30 km from La Serena, Chile.
About Altiplano
Altiplano Metals is a growing gold, silver, and copper company focused on the Americas. The Company
has a diversified portfolio of assets that include ex ploration properties, a developing copper/gold/iron
mine and a state-of-the-art operating copper/gold and iron processing facility. Altiplano is focused on
creating long-term stakeholder value through develo ping safe and sustainable production, reinvesting
into exploration and development, and pursuing acqui sition opportunities to provide scalable upside
opportunities. Management has a substantial record of success in capitalizing on opportunity, overcoming
challenges and building shareholder value
www.metalsgroup.com
Altiplano is part of the Metals Group of Companies, led by a dynamic
group of resource sector profession als with a long record of success
in evaluating and advancing min ing projects from exploration
through to production, attracting capital, and overcoming adversity
to deliver exceptional shareholder value.
ON BEHALF OF THE BOARD
/s/ "John Williamson"
Chairman
For further information, please contact:
Alastair McIntyre, CEO
Tel: (416) 434 3799
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the
(TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
This release includes certain statements that may be deem ed "forward-looking statements ". All statements in this
release, other than statements of historical facts, that address exploration drilling, exploitation activities and events
or developments that the Company expects are forward- looking statements. A qualified person has not done
sufficient work to classify any historical estimates as current mineral reso urces or mineral reserves and the issuer is
not treating any historical information or estimates as current mineral resources or mineral reserves. The Santa
Beatriz mine was previously in production mid 2010’s wi th little known production records. This material was
processed and sold locally to a private processing facility. Altiplano is relying upon limited past production records,
underground sampling and related activities to further explore and potentially develop Santa Beatriz. The decision to
develop the project and extract material for potential processing is not based on a feasibility study of mineral reserves
Altiplano Metals Inc.
250 Southridge NW, Suite 300
Edmonton, AB
Canada
T6H 4M9
demonstrating economic and technical viability and there is increased uncertainty and economic and technical risks
of failure associated with any future potential production decision. Although the Company believes the expectations
expressed in such forward-looking statements are based on reasonable assumptions, such statements are not
guarantees of future performance and actual results or developments may differ materially from those in the
forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking
statements include market prices, exploitation and exploration successes, continuity of mineralization, uncertainties
related to the ability to obtain necessary permits, licenses and title and delays due to third party opposition, changes
in government policies regarding mining and natural resource exploration and exploitation, and continued
availability of capital and financing, and general economic, market or business conditions . Investors are cautioned
that any such statements are not guarantees of future pe rformance and actual results or developments may differ
materially from those projected in the forward-looking statements. For more information on the Company, investors
should review the Company's continuous disclosure filings that are available at www.sedarplus.ca .