RNS Number : 2805N Atalaya Mining Copper, S.A. 21 July 2026  

21 July 2026

Atalaya Mining Copper, S.A.

("Atalaya" or the "Company")

Correction re: Q2 2026 Operations Update

Atalaya Mining LSE:ATYM announces that it has identified an error in the net cash figure stated in its Q2 2026 Operations Update announcement dated 14 July 2026.

The announcement stated a net cash position of €340.2 million as of 30 June 2026, however, the correct figure is €318.4 million. For clarity, the erroneous and corrected balance sheet paragraphs are shown below.

The clerical error was identified following a further review of the Company's accounts in relation to its upcoming Q2 2026 Financial Results, which will be announced on 11 August 2026. The correction does not affect any other financial or operational information contained in the original announcement.

The Company has reviewed the circumstances giving rise to the error and is taking appropriate steps to strengthen the relevant reporting controls.

Erroneous Text

"Consolidated cash and cash equivalents were €351.2 million as of 30 June 2026 (31 December 2025: €166.3 million).

Current and non-current borrowings were €10.9 million, resulting in a net cash position of €340.2 million as of 30 June 2026 (31 December 2025: €122.0 million)."

Corrected Text

"Consolidated cash and cash equivalents were €350.3 million as of 30 June 2026 (31 December 2025: €166.3 million).

Current and non-current borrowings were €31.9 million, resulting in a net cash position of €318.4 million as of 30 June 2026 (31 December 2025: €122.0 million)."

The person responsible for arranging release of this Announcement on behalf of the Company is César Sánchez (CFO).

This announcement contains information which, prior to its publication constituted inside information for the purposes of Article 7 of Regulation (EU) No 596/2014.

Contacts:

SEC Newgate UK

Atalaya Mining

Elisabeth Cowell / George Esmond  / Gwen Samuel

Michael Rechsteiner

+44 20 3757 6882

+34 959 59 28 50

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

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