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Altiplano Drills 2.37% Cu, 0.30 g/t Au, and 36.12% Fe over 2.89 m, Including 15.29% Cu, Confirming High-Grade Continuity at Santa Beatriz

Drill Results

Altiplano Drills 2.37% Cu, 0.30 g/t Au, and

36.12% Fe over 2.89 m, Including 15.29% Cu,

Confirming High-Grade Continuity at Santa

Beatriz

Edmonton, Alberta--(Newsfile Corp. - July 15, 2025) -

Altiplano Metals Inc

. (TSXV: APN) (WKN:

A2JNFG) ("

Altiplano

" or the "Company") is pleased to report assay results from its inaugural drill

program at the historic Santa Beatriz Iron Oxide Copper Gold (IOCG) mine, located approximately 45

km south of La Serena, Chile, and just 30 km from the Company's El Peñón processing facility.

Highlights:

A total of 655.6 metres was drilled across four diamond drill holes (25SB-001 to 25SB-004)

Drilling confirms vein continuity over 100 metres along strike and approximately 40 metres down

dip below the lowest mined level (Level 414).

Weighted average grade across all holes:

1.33% Cu, 0.20 g/t Au, and 29.00% Fe over 2.14 m

apparent vein width.

Best interval (Hole 25SB-004):

2.89 m grading

2.37% Cu, 0.30 g/t Au, and 36.12% Fe

,

Including 1.5 m grading

4.11% Cu, 0.53 g/t Au, and 35.11% Fe

With a high-grade sample of

15.29% Cu, 1.91 g/t Au, and 44.3% Fe

over 35 cm (Sample

648082)

Anomalous molybdenum (up to 0.04% Mo), potassic alteration, and magnetite veining suggest

potential for porphyry-style mineralization at depth.

President and Chief Executive Officer Alastair McIntyre comments:

"The drill results confirm the continuity of the Santa Beatriz vein system along strike and at depth. We are

also encouraged to see increasing grade in deeper sections, similar to our observations at Farellon. The

positive results support our plan to advance mine development into deeper levels providing opportunity

to supply material to the El Peñón mill. We are also encouraged by the geological information from the

core and samples, that indicate a broader exploration potential within the property and the district."

Figure 1 - Plan view showing completed drill holes, underground development (Level 414),

vein thickness, and Cu% values

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4303/258819_86a2432484a828ee_001full.jpg

Figure 2 - 3D long section highlighting drill results and planned sublevel development.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4303/258819_86a2432484a828ee_002full.jpg

*All drill core samples are reported as apparent width, estimated to represent approximately 80-90% of true width

**A decision to develop the historical Santa Beatriz mine is not based on a feasibility study of mineral reserves demonstrating economic and

technical viability and there is increased uncertainty of economic and technical risks of failure associated with any potential production decision.

Drilling Summary

The 655.6 metres of core drilling, completed between March 14 and April 20, 2025, targeted extensions

of the main vein below Level 414. Drill holes intersected the structure between elevations of 365 and 391

masl, extending up to 50 m beneath current development.

Hole 25SB-002 intersected a faulted zone but vein continuity was confirmed through adjacent holes

25SB-001 and 25SB-003. The mineralized structure comprises massive magnetite with bands of

chalcopyrite and lesser pyrite. Variability in Cu:Fe ratios reflect the mineral proportions in each intercept.

Drill hole 25SB-004 returned the most significant interval, highlighted by high-grade copper and gold

values along with strong iron content, correlating with grades observed in underground sampling at Level

414. The average weighted grade of the vein is 1.33 Cu%, 0.2 g/t Au, and 29 Fe% over 2.14 m vein

apparent width. Assay results are reported in Figure 03.

The high Cu grades intersected by this hole are consistent with high Cu grades sampled underground in

the level 414 confirming continuity on the grades along the vein at depth. Massive chalcopyrite is mostly

present replacing apatite and actinolite phenocrysts in a matrix of magnetite. Gangue minerals are

dominantly apatite and actinolite altered to chlorite with minor interstitial calcite (Figure 4).

Figure 3 - Assay summary table of core vein intervals

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4303/258819_86a2432484a828ee_003full.jpg

Figure 4 - Drill core photographs from Hole 25SB-004 (Sample 648082) showing massive

chalcopyrite replacing apatite and actinolite in a magnetite matrix

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4303/258819_altiplano%20figure%204.jpg

Geological Observations

The Santa Beatriz vein is hosted in a diorite intrusive complex, ranging from coarse-grained diorite to

microdiorite. Shallow sections exhibit strong propylitic alteration with epidote, chlorite, and pyrite. Hole

25SB-002 also intersected vuggy quartz with epidote, suggesting epithermal overprinting. Notably,

deeper sections of hole 25SB-004 revealed intense potassic alteration, K-feldspar, biotite, and

magnetite associated with minor molybdenite and chalcopyrite. This alteration, observed only at depths

>250 m, resembles porphyry-style mineralization. Further sampling of deeper core intervals is pending.

Quality Assurance / Quality Control (QA/QC)

Drill core (NQ) samples were collected under the supervision of an experienced APN geologists and

transported about 1 km to the Altiplano core logging facility for detailed logging and sampling. Samples

were prepared using the entire core and securely shipped to ALS Laboratories in Copiapó, Chile, for

sample preparation, and then to ALS's laboratory in Santiago, Chile for analysis. All samples were

analyzed using an AAS instrument and standard industry procedures, including:

Cu-AA62:

Cu Ore - four-acid digestion/AAS

Mo-AA62:

Mo Ore - four-acid digestion/AA

Fw-AA62:

Cu Ore - four-acid digestion/AAS

Au-AA23:

Au 30 g fire assay with AA finish

As part of the Company's QA/QC protocols, a robust quality control program was implemented, which

includes the insertion of certified reference materials (standards), blank samples, and duplicate core

samples at regular intervals (approximately every 10 samples) throughout the sample stream. All QA/QC

control samples returned results within acceptable limits, ensuring the reliability of the assay data. All drill

core samples are reported as apparent width which is estimated to represent approximately 80-90%%

of true width.

Qualified Person

The technical content of this news release has been reviewed and approved by

John Williamson,

P.Geol.

, a Qualified Person as defined by National Instrument 43-101. Mr. Williamson is a Chairman

and Director of Altiplano Metals Inc. and is not independent of the Company.

Altiplano has generated over

C$23.8 million

from the recovery and sale (after processing costs) of

more than

8.2 million pounds of copper

with an average grade of

1.8% Cu

(Jan 2018 to Mar 2025).

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 exploration 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 developing safe and sustainable production, reinvesting

into exploration and development, and pursuing acquisition opportunities to provide scalable upside

opportunities. Management has a substantial record of success in capitalizing on opportunity,

overcoming challenges and building shareholder value.

Altiplano is part of the Metals Group of Companies, led by a dynamic group of resource sector

professionals with a long record of success in evaluating and advancing mining projects from exploration

through to production, attracting capital, and overcoming adversity to deliver exceptional shareholder

value.

www.metalsgroup.com

ON BEHALF OF THE BOARD

/s/ "John Williamson"

Chairman

For further information, please contact:

Alastair McIntyre, CEO

[email protected]

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 deemed "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 resources 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 with 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 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 performance 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

.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/258819