VANCOUVER, British Columbia, Dec.  05, 2025  (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) announces that Carmen Cazares has retired from her role as Chief Financial Officer (“CFO”) of the Company. The Company is also pleased to announce that Francisco Del Castillo, has assumed the role of CFO effective December 1, 2025.

Ms. Cazares has served as the CFO of the Company since 2022 and previously served as the Company’s Corporate Controller. “On behalf of our employees and Board of Directors, I want to thank Carmen for her dedication, integrity, and contributions during the past six years. We all wish her a well-deserved retirement and all the best going forward”, Mirasol’s President & CEO Tim Heenan stated.

Mr. Del Castillo is a Chartered Professional Accountant with over 20 years of experience in public practice, corporate financial management, public company reporting, and multinational financial operations across Canada, Mexico and Latin America. He has served as Fractional CFO and Corporate Controller for public mining companies and Corporate Controller for a production-stage miner with operations in Mexico. Mr. Del Castillo holds Canadian and Mexican CA designations and an MBA.

“We are pleased to welcome Francisco to our executive team. His extensive experience in the Latin American resource sector and strategic financial leadership will be instrumental as we advance our portfolio of highly prospective exploration projects across Chile and Argentina,” said Mr. Heenan.

About Mirasol Resources Ltd

Mirasol is a well-funded exploration company with over 20 years of operating, permitting and community relations experience in the mineral rich regions of Chile and Argentina. Mirasol is currently self-funding exploration at the flagship Sobek Copper-Gold Project located in the Vicuña Copper-Gold-Silver District of northeast Chile while continuing to advance a strong pipeline of highly prospective early and mid-stage projects.

For further information, contact:

Tim Heenan, President & CEO
or
Troy Shultz, Vice President Investor Relations

Tel: +1 (604) 602-9989
Email: [email protected]
Website: www.mirasolresources.com

Forward Looking Statements: The information in this news release contains forward looking statements that are subject to a number of known and unknown risks, uncertainties and other factors that may cause actual results to differ materially from those anticipated in our forward-looking statements. Factors that could cause such differences include: changes in world commodity markets, equity markets, costs and supply of materials relevant to the mining industry, change in government and changes to regulations affecting the mining industry and to policies linked to pandemics, social and environmental related matters. Forward-looking statements in this release include statements regarding future exploration programs, operation plans, geological interpretations, mineral tenure issues and mineral recovery processes. Although we believe the expectations reflected in our forward-looking statements are reasonable, results may vary, and we cannot guarantee future results, levels of activity, performance or achievements. Mirasol disclaims any obligations to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as may be required by applicable law.

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.