13 May 2026

Atalaya Mining Copper, S.A.

("Atalaya" or the "Company")

Notice of Q1 2026 Financial Results

Atalaya Mining (LSE: ATYM) will release its unaudited first quarter financial results for the period ended 31 March 2026 ("Q1 2026") together with its unaudited condensed consolidated financial statements on Tuesday, 26 May 2026.

Analyst and Investor Presentation

Alberto Lavandeira (CEO) and César Sánchez (CFO) will host a webcast for analysts and investors on Tuesday, 26 May 2026 at 9:00 BST.

To access the SparkLive webcast, please register in advance via:

Atalaya Mining Q1 2026 Results | SparkLive | LSEG

Participants not yet registered with SparkLive will need to create an account.

Investor Meet Company Presentation

In addition, the Company will provide a live presentation relating to the Q1 2026 Financial Results via the Investor Meet Company platform on Tuesday, 26 May 2026 at 11:00 BST.

The presentation is open to all existing and potential shareholders. Questions can be submitted pre-event via the Investor Meet Company dashboard up until 09:00 BST the day before the meeting or at any time during the live presentation.

Investors can sign up to Investor Meet Company for free and click "Add to Meet" Atalaya via:

https://www.investormeetcompany.com/atalaya-mining-copper-sa/register-investor

Contacts:

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