THIS ANNOUNCEMENT IS MADE FOR INFORMATION PURPOSES ONLY AND DOES NOT CONSTITUTE AN OFFER TO SELL OR ISSUE OR SOLICITATION TO BUY, SUBSCRIBE FOR OR OTHERWISE ACQUIRE SHARES IN ATALAYA MINING PLC IN ANY JURISDICTION IN WHICH ANY SUCH OFFER OR SOLICITATION WOULD BE UNLAWFUL.

13 November 2023

Atalaya Mining Plc.

("Atalaya" or "the Company")

Intention to Move from AIM to Main Market

Premium listing expected to broaden appeal to new institutional investors

Atalaya Mining Plc (AIM: ATYM) is pleased to announce its intention to apply for the Company's ordinary shares ("Ordinary Shares") to be admitted to the premium listing segment of the Official List maintained by the Financial Conduct Authority ("FCA") ("Official List") and to trading on the London Stock Exchange plc's ("London Stock Exchange") main market for listed securities ("Main Market") (together, "Admission").

Since restarting operations at Proyecto Riotinto in 2016, Atalaya has become a leading European producer of copper, which is a key commodity for economic growth and the energy transition. Atalaya has assembled a portfolio of growth projects across several world-class mineral districts in Spain and maintains a sustainable dividend policy. In order to build on this success, Atalaya's Board of Directors believes that the move to the Main Market would further enhance the Company's corporate profile and broaden its appeal to new institutional investors.

Atalaya does not intend to raise any funds or offer any new securities in connection with Admission or the publication of the related prospectus. The Admission will be effected through an introduction of the Company's existing Ordinary Shares.

Admission is subject to the approval by the FCA of a prospectus and the Ordinary Shares being admitted by the FCA to the premium listing segment of the Official List and by the London Stock Exchange to trading on the Main Market. Subject to the satisfaction of these conditions, Admission is expected to occur before the end of December 2023. Accordingly, the Company hereby gives notice of the intended cancellation of trading of its Ordinary Shares on AIM in accordance with Rule 41 of the AIM Rules for Companies. The Company's listing on AIM is expected to be to be cancelled before the end of December 2023.

Atalaya will make a further announcement on the status of the proposed applications for Admission, together with the timeline for Admission, in due course.

Admission is not expected to be conditional upon shareholder approval. Atalaya shareholders should consult their own professional advisors regarding the consequences of Admission on their personal tax position.

Peel Hunt LLP is acting exclusively as sponsor to the Company and no one else in connection with Admission.

Alberto Lavandeira, CEO of Atalaya, commented:

"In the last eight years we have established Atalaya as one of Europe's leading copper producers, achieving scale, growth and consistency. At the same time, copper has become widely regarded as a strategic metal due to its important role in the energy transition.

We are committed to building upon the significant growth we have achieved to date and our intention to seek admission to the premium listing segment of the Official List reflects our confidence in our future prospects, our expanding investor base and our ambition to become a multi-asset producer with a portfolio of sustainable, scalable and low-risk operations."

Contacts:

About Atalaya Mining Plc

Atalaya is an AIM-listed mining and development group which produces copper concentrates and silver by-product at its wholly owned Proyecto Riotinto site in southwest Spain. Atalaya's current 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 that include Proyecto Masa Valverde and Proyecto Riotinto East. In addition, the Group has a phased earn-in agreement for up to 80% ownership of Proyecto Touro, a brownfield copper project in the northwest of Spain, as well as a 99.9% interest in Proyecto Ossa Morena. For further information, visit www.atalayamining.com

Important Notice

This announcement contains statements that are, or may be deemed to be, "forward-looking statements". These forward-looking statements can be identified by the use of words such as "will", "expect", "could", "believe", "intend", "should" and words of similar meaning. All statements other than statements of historical facts included in this announcement, including those regarding the Company's strategy, plans and objectives and the anticipated Admission are forward-looking statements. Readers are cautioned not to place undue reliance on such statements. Forward-looking statements involve a number of known and unknown risks, uncertainties and other factors, many of which are difficult to predict and generally beyond the control of Atalaya. These forward-looking statements speak only as of the date of this announcement. Atalaya expressly disclaims any obligation or undertaking to update or revise any forward-looking statement (except to the extent legally required).

Peel Hunt LLP ("Peel Hunt"), which is authorised and regulated in the United Kingdom by the FCA, is acting exclusively for the Company  as Sponsor and no one else in connection with Admission and it will not regard any other person as a client in relation to Admission and will not be responsible to anyone other than the Company  for providing the protections afforded to its clients or for providing advice in relation to Admission or any other transaction, matter, or arrangement referred to in this announcement.

This announcement has been issued by, and is the sole responsibility of, the Company. No representation or warranty, express or implied, is or will be made as to, or in relation to, and no responsibility or liability is or will be accepted by Peel Hunt or by any of its affiliates, partners, directors, officers, employees, advisers or agents as to or in relation to, the accuracy or completeness of this announcement or any other written or oral information made available to or publicly available to any interested party or its advisers, and any liability therefore is expressly disclaimed.