EDMONTON, AB – May 15th, 2025 – Altiplano Metals Inc. (TSXV: APN) (WKN: A2JNFG) (“Altiplano” or the “Company”) is pleased to announce that the TSX Venture Exchange has granted the Company a 30-day closing extension with respect to its Offering initially announced on February 12, 2025. With the extension of the final date for this Offering, it is anticipated that a second tranche will close on or before June 9, 2025.

Altiplano closed a first tranche of its Offering on March 31, 2025, which consisted of sell of 12,785,000 Units (as described in detail in the Company’s news release dated March 31, 2025) for gross proceeds of $639,250. The net proceeds of the Offering will be used for working capital to support the concentrate production cycle at the El Peñón processing facility in Chile; development costs, including a diamond drill program, at Santa Beatriz to outline a short-term operations plan, and fund general admin while reviewing additional projects for potential acquisition or alternative mill supply.

For additional information on our Offering, please refer to Altiplano’s news releases dated February 12, 2025, and March 31, 2025.

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 an industry leading 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"
Chair

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. 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.