EDMONTON, March 18th, 2025 - Altiplano Metals Inc. (TSXV: APN) (WKN: A2JNFG) (“Altiplano” or the “Company”) is pleased to provide permitting and operational updates at the Company’s El Peñón processing facility located approximately 30 kilometers south of La Serena, Chile.

Highlights:

• The Chilean mining authority SERNAGEOMIN (Servicio Nacional de Geología y Minería) has provided confirmation that the validity date for the El Peñón processing facility is in effect until September 2028.
• This confirmation, effective March 6th, 2025 (Resolution 084/2025), provides the continuing approval to process 4,950 tonnes per month at the plant within the 42-month operational timeline.  An application for extension can be presented under the normal application procedures closer to the next expiry date.
• Operationally, 51.5 tonnes of copper-gold and 460 tonnes of iron concentrate were sold in February from 1,341 tonnes of material processed at the plant generating a provisional US$125,460 in sales (approx. C$180,000). In January, 55 tonnes of copper-gold concentrates and 800 tonnes of iron concentrates were sold representing US$150,800 (approx. C$217,152) in provisional sales*. October – December 2024 results (Q3 2025) are presented in Table 1.
• The plant is processing material from Santa Beatriz and two independent sources local to the plant. This additional third party mineralized material will be used to supplement feed stock while Santa Beatriz continues development.
• The addition of this material will improve the throughput at the plant to 2,500 tonnes in March with expected further increases in the coming months as new material is sourced.
• Santa Beatriz to date has extracted and shipped to the plant a total of 718 tones and processed 654 tonnes.
• The Company drill rig is now set up at Santa Beatriz in anticipation of starting operations the week of March 17th. This drilling will provide an estimation of the Cu-Au-Fe mineralization along strike and down dip for potential mine expansion and increased future mineral extraction.

*Final sales are reported at quarter end based on final assays and monthly average copper/gold prices. USD/CAD comparison is based on a March 14th rate of 1.44

President and CEO Alastair McIntyre comments:
“We are excited to receive our permitting confirmation and thank the local authority’s commitment to mining and mineral processing projects. The permit confirmation provides the operational certainty to source mineralized material and to develop mining assets that will support processing at full capacity. We continue sourcing mill feed from the highly prolific Tambillos iron-oxide-copper-gold district that provides producers a very positive transportation benefit.”

Table 1. Material Processed, Concentrates Produced and Sold

Further to the Company’s news release dated February 12, 2025 announcing the Offering, the TSXV has granted Altiplano a 30-days extension to close its Offering.

Altiplano has generated over C$23.3 million from the recovery and sale (after processing costs) of more than 7.4 million pounds of copper with an average grade of 1.8% Cu (Dec 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 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

ON BEHALF OF THE BOARD
/s/ "John Williamson"
Chairman

For further information, please contact:
Alastair McIntyre, CEO
moc.slatemnpa@mriatsala
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.