The Board of Directors of Mineros S.A. (the “Company”), acting pursuant to the powers set out in Article 24 of the Company's bylaws, hereby calls an extraordinary meeting of the General Shareholders Assembly (the "Meeting"), to be held on Tuesday, July 14, 2026, at 8:00 a.m., at the Salón Gran Real, Hotel Marriott Medellín, Calle 1A Sur No. 43A-83, El Poblado, Medellín, Antioquia, Colombia.

Agenda:

1. Verification of quorum and opening of the Meeting.
2. Reading of the Meeting agenda.
3. Appointment of delegates to review and approve the minutes of the Meeting.
4. Approval of the amendment to the share repurchase program.
5. Approval of the increase to the share repurchase reserve.

Shareholders who are unable to attend the Meeting in person may be represented by proxy, in accordance with Article 184 of the Colombian Commercial Code. A form of proxy and the documents relating to the proposals to be put to a vote are available at www.mineros.com.co.

Shareholders are reminded that, pursuant to Article 185 of the Colombian Commercial Code, except in cases of legal representation, the directors and employees of Mineros S.A. may not represent shares other than their own while serving in their respective positions, nor may they substitute the powers of attorney granted to them.

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Augusto López Valencia
Chairman of the Board of Directors
Mineros S.A.