FTSE 250 Index Inclusion

2 May 2025

Atalaya Mining Copper, S.A.

("Atalaya" or "the Company")

FTSE 250 Index Inclusion

Atalaya Mining (LSE: ATYM) notes the announcement by FTSE Russell that Atalaya's shares will be added to the FTSE 250 Index.

The addition will be effective from 7 May 2025.

Alberto Lavandeira, CEO, commented:

"We are honoured to be joining the FTSE 250 Index. This represents an important milestone for Atalaya, which re-started the Riotinto copper mine in 2015 and has since grown into one of the leading pure-play copper producers on the London Stock Exchange.

We are excited about the years ahead and plan to grow our company further. We want to thank all of our employees and contractors, our many stakeholders in the regions surrounding our operations and our loyal shareholders for their dedication and support."

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".

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