Issue of Shares in Relation to LTIP

21 October 2026

Atalaya Mining Copper, S.A.

(“Atalaya” or the “Company”)

Issue of Shares in Relation to LTIP

Atalaya Mining (LSE: ATYM) announces an issuance of 181,292 ordinary shares of €0.09 each (the “New Shares”), representing approximately 0.12% of the Company’s issued share capital, to certain eligible employees in relation to the Company’s Long-Term Incentive Plan 2020.

Admission and Total Voting Rights

Application will be made for the New Shares to be admitted to trading on the London Stock Exchange’s Main Market for listed securities, which is expected to take place in the coming days. The New Shares will, when issued, be credited as fully paid and rank pari passu in all respects with the existing issued ordinary shares of the Company.

Immediately following admission, and in accordance with FCA Disclosure Guidance and Transparency Rule 5.6.1, the Company's total issued share capital will comprise 153,940,335 ordinary shares of €0.09 each. This figure may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

The Company’s LEI is 549300QNQPXVRXGXOX56.

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About Atalaya Mining Copper, S.A.

Atalaya is a European copper producer that owns and operates the Proyecto Riotinto complex in southwest Spain. Atalaya’s shares trade on the London Stock Exchange’s Main Market under the symbol “ATYM” and Atalaya is a FTSE 250 Index constituent.

Atalaya’s operations include the Cerro Colorado open pit mine and a modern 15 Mtpa processing plant, which has the potential to become a central processing hub for ore sourced from its wholly owned regional projects around Riotinto, such as Proyecto Masa Valverde and Proyecto Riotinto East. In addition, Atalaya has a phased earn-in agreement for up to 80% ownership of Cobre San Rafael S.L., which fully owns the Proyecto Touro brownfield copper project in the northwest of Spain, as well as a 99.9% interest in Proyecto Ossa Morena. For further information, please visit www.atalayamining.com