Atico Mining Update on Permitting Process for the La Plata Project in Ecuador

“The receipt of key permits and authorizations in recent periods, including the EL for the La Plata project, represents the culmination of years of dedicated effort. This includes successful exploration and resource expansion, completion of the environmental impact study in early 2023, and the publication of the NI 43-101 compliant definitive feasibility study in August 2024” said Fernando E. Ganoza, CEO. “The La Plata project is nearing construction-ready status, with management advancing the remaining auxiliary permits, positioning the project to be ready for a construction decision in the second or third quarter of this year.”

Environmental License

The environmental regularization process for the mining project commenced in March 2022 with the submission of the Environmental Impact Study (EIA). This comprehensive document provides a detailed technical analysis of all environmental and social components associated with the construction, operation, and closure phases of the mine. It assesses potential impacts that may arise from these activities and incorporates a robust Environmental Management Plan (EMP). The EMP outlines specific plans and programs aimed at preventing and mitigating environmental impacts, as well as initiatives for environmental training, ongoing monitoring and follow-up, rehabilitation and restoration of affected areas, community relations, and other relevant management measures. Both the EIA and the EMP were developed in full alignment with the highest national and international standards, ensuring technical rigor and strict compliance with applicable environmental regulations.

As part of the process, the EIA underwent extensive socialization through citizen participation mechanisms for environmental consultation, in accordance with the provisions of Ecuador's Organic Environmental Code and its regulations, rulings from the Constitutional Court, and the core principles of the Escazú Agreement, which emphasize access to information, public participation, and justice in environmental decision-making. The consultation process successfully concluded in August 2025, with the execution of the environmental consultation itself. During this phase, more than 90% of the population residing in the Area of Direct Influence expressed their support for the granting of the Environmental License for the mining project.

Waste Generator Registry and Chemical Substances Registry

The company conducted a thorough analysis of the wastes and residues that could be generated throughout mining activities, with the primary goal of establishing an efficient, preventive, and fully traceable waste management system, from generation through to final disposal. As a key obligation under the granted authorizations, the company is required to submit to the Environmental Authority a detailed set of measures and strategies designed to prevent, reduce, or minimize the generation of waste and residues. Temporary storage of these materials within the project facilities will be managed under strict technical controls and rigorous safety protocols to ensure the protection of soil and water bodies, prevent any emissions into the environment, and maintain full compliance with applicable environmental regulations.

With respect to the RSQ, the company performed comprehensive studies, laboratory tests, and evaluations of alternatives to accurately determine the types and quantities of chemical substances to be used in the metallurgical process for mineral recovery. This technical and operational approach ensures efficient, controlled, and environmentally responsible use of these substances. To guarantee proper management, the company is obligated to submit monthly reports to the Environmental Authority detailing the use, handling, storage, and transportation of chemical substances. Additionally, all personnel involved in their handling will receive specific and ongoing training on the associated hazards and risks, as well as on the procedures and response actions to be followed in the event of any incident.

The granting of these key permits and authorizations represents a major milestone for the La Plata project, firmly consolidating our plans to commence construction of Ecuador’s second medium-scale mine this year. It further strengthens our unwavering commitment to developing and operating the project in a responsible and transparent manner. We remain dedicated to working in close coordination with the communities within the area of influence, while fully complying with Ecuadorian legislation and adhering to the highest international standards and best practices in environmental and social responsibility. During construction and operation activities, the project will generate more than 600 direct employment positions and between 1200 to 1800 indirect employment positions in the construction stage and more than 300 direct employment positions and between 600 and 900 indirect employment positions once in commercial production

About Atico Mining Corporation

Atico is a growth-oriented Company, focused on exploring, developing and mining copper and gold projects in Latin America. The Company generates significant cash flow through the operation of the El Roble mine and is developing its high-grade La Plata VMS project in Ecuador. The Company is also pursuing additional acquisition of advanced stage opportunities. For more information, please visit www.aticomining.com.

ON BEHALF OF THE BOARD

Fernando E. Ganoza
CEO
Atico Mining Corporation

Trading symbols: TSX.V: ATY | OTCID: ATCMF

Investor Relations
Igor Dutina
Tel: +1.604.633.9022

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.

No securities regulatory authority has either approved or disapproved of the contents of this news release. The securities being offered have not been, and will not be, registered under the United States Securities Act of 1933, as amended (the ‘‘U.S. Securities Act’’), or any state securities laws, and may not be offered or sold in the United States, or to, or for the account or benefit of, a "U.S. person" (as defined in Regulation S of the U.S. Securities Act) unless pursuant to an exemption therefrom. This press release is for information purposes only and does not constitute an offer to sell or a solicitation of an offer to buy any securities of the Company in any jurisdiction.

Cautionary Note Regarding Forward Looking Statements

This announcement includes certain “forward-looking statements” within the meaning of Canadian securities legislation. All statements, other than statements of historical fact, included herein, without limitation the use of net proceeds, are forward-looking statements. Forward-looking statements involve various risks and uncertainties and are based on certain factors and assumptions. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company’s expectations include uncertainties relating to interpretation of drill results and the geology, continuity and grade of mineral deposits; uncertainty of estimates of capital and operating costs; the need to obtain additional financing to maintain its interest in and/or explore and develop the Company’s mineral projects; uncertainty of meeting anticipated program milestones for the Company’s mineral projects; and other risks and uncertainties disclosed under the heading “Risk Factors” in the Company’s Annual Information Form (“AIF”) dated September 4, 2024, filed with the Canadian securities regulatory authorities on the SEDAR+ website at www.sedarplus.com and as available on the Company's website for further details.