Alturas Minerals Update on the Exploration Projects and announces management debt conversion

PRESS RELEASE TSXV: ALT

Alturas Minerals Update on the Exploration Projects and

announces management debt conversion

Toronto, Canada, July 21, 2025 – Alturas Minerals Corp. (the “Company”) (TSX-V) is pleased to provide

an update on the Lease agreement with Sociedad Contractual Minera Resguardo (“Minera Resguardo”

or the “Optionor”), a Chilean mining exploration company, to lease and acquire 100% of its Resguardo

Copper-Gold Project (the “Concessions” or “Resguardo”), located about 95 km northeast of Copiapo, in

Region III of northern Chile, referred to as “Región de Atacama”.

As disclosed in its January 17, 2025 Press Release, the Company did not fulfill its May 31, 2024, payment

obligation with the Optionor, and the original Agreement has lapsed. The parties have reviewed the

different alternatives to renew the agreement and concluded that it was not feasible to do so. Deposits

initially made to Resguardo totaling $25,000 have been redirected to other general and administrative

expenses related to other Alturas operating expenses in Chile.

Alturas is currently in discussions with certain arms-length parties, to acquire interests in properties

located in areas nearby the Resguardo property, at more advantageous terms.

Conversion of Alturas debt with Officers and Directors

The Company is in the final stages of negotiations that would settle the outstanding debt Alturas has

with officers and directors. The amount accrued as of March 31, 2025 is approximately $3.2 million (USD

2.2 million) out of which approximately $660,000 would be converted into shares of the Company and

the remaining ($2.5 million) written off the books of Alturas. The transaction is subject to the approval

of the TSXV.

About Alturas Minerals

Alturas is a Canadian corporation, and is the indirect parent of the Peruvian company, Alturas Minerals S.A.

(“Alturas Peru”) and of the Chilean company, Alturas Chile Limitada (“Alturas Chile”). Alturas had been exploring

various mineral projects in Peru between January 2004 and 2020 and between 2012 and 2014 in Chile through its

subsidiaries. After interrupting its exploration activities in Chile and Peru due to financial constraints, Alturas is

now focusing on new business opportunities, including the initiation of mining operations in Chile.

Qualified Person

Scott Jobin-Bevans (PhD, PMP, P.Geo.), an independent qualified person (“QP”) as defined in National

Instrument 43-101, has reviewed, and approved the technical contents of this news release on behalf of the

Company. The QP as part of his involvement as Principal Geoscientist with Caracle Creek International

Consulting Inc. has visited the Resguardo Copper Project and has completed sufficient work to verify the historic

information on the Concessions, particularly regarding historical exploration, neighboring companies, and

government geological work.

ALTURAS MINERALS CORP.

“Miguel Cardozo” Chief Executive Officer

Contact: Mario Miranda

2

Phone: (416) 363-4900

Alturas Minerals Corp. (TSX-V: ALT)

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Exchange) nor the Bolsa de Valores de Lima accepts responsibility for the adequacy or accuracy of this release.

Cautionary Language and Forward-Looking Statements

This press release may contain “forward-looking statements”, which are subject to various risks and uncertainties that could

cause actual results and future events to differ materially from those expressed or implied by such statements. Investors are

cautioned that such statements are not guarantees of future performance and results. Risks and uncertainties about the

Company’s business are more fully discussed in the Company’s disclosure documents filed from time to time with the Canadian

securities authorities