ALTONA RARE EARTHS PLC

("Altona" or "the Company")

ALTONA APPOINTS DGWA AS EUROPEAN FINANCIAL MARKETS

& INVESTOR RELATIONS ADVISOR

Altona (LSE: REE) (FSE: A8LA), a resource exploration and development company focused on critical raw materials in Africa, is pleased to announce that it has appointed DGWA GmbH ("DGWA") as its European financial markets and investor relations advisor. This appointment seeks to maximise the value of the pre-existing dual listing of the Company's common shares on the Frankfurt and Stuttgart Stock Exchanges (WKN: A2N6NH).

The European advisor will assist Altona with expanding its European profile for Strategic Investors and industry players, increasing the awareness of its rare earths and gallium project and short-term high-grade fluorspar mining opportunity in Mozambique, as well as its copper project in Botswana.

This comes in a context where Altona has applied for the EU's Critical Raw Materials Act ("CRMA") Strategic Project status for Monte Muambe, the EU has recently released a list of 47 strategic projects located in Member States, and the results of applications for non-Member States projects is expected in the coming weeks.

DGWA will also assist the Company to engage with retail, institutional and large private investors in the German-speaking DACH region (Germany, Austria, and Switzerland) with a population of close to 100 million people, as well as the rest of Europe and the United Kingdom.

Cedric Simonet, CEO of Altona, commented: "We are delighted to partner with DGWA as we expand our presence in the European investment community. With the EU's Critical Raw Materials Act (CRMA) highlighting the urgent need for secure and diversified supply chains, Altona is well-positioned to contribute to Europe's resource independence, helping secure critical materials essential for high-tech applications and the green energy transition.

"With strong progress on our Prefeasibility Study and a clear path to development, we look forward to engaging with European investors and OEMs who recognize the long-term value of sustainable resource projects.

"DGWA's expertise in the European markets will be invaluable in connecting Altona with strategic partners and investors who share our vision for responsible and high-impact critical raw material development."

DGWA's CEO Stefan Müller, added:  "We are excited to introduce Altona to European investors at a critical time for the EU's supply sovereignty. Altona's Monte Muambe rare earths, gallium and fluorspar projects in Mozambique, along with its copper asset in Botswana, directly align with the EU's goals by developing diversified, secure, and sustainable supply chains.

Rare earths and gallium are essential for the green transition and high-technology applications, and Altona's progress-from a defined JORC resource to the Prefeasibility Study stage-demonstrates its commitment to responsible development. With Europe striving to reduce reliance on single-source supply chains, Altona presents a unique opportunity for investors as Altona is at the forefront of securing critical materials for the future. We look forward to supporting Altona's growth and connecting it with European capital markets."

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Altona Rare Earths Plc
Cédric Simonet, CEO                                                 +44 (0) 7778 866 108
Louise Adrian, CFO                                                    +44 (0) 7721 492 922

Strand Hanson (Financial Adviser)                         +44 (0) 20 7409 3494
Christopher Raggett

About DGWA GmbH

DGWA, the German Institute for Asset and Equity Allocation and Valuation ("Deutsche Gesellschaft für Wertpapieranalyse GmbH"), is a European Investment Banking and Corporate Advisory firm based in Frankfurt, Germany. The management team has a 30-year track record in trading, investing, and analyzing SMEs around the world. DGWA has been involved in over 250 IPOs, financings, bond issues, dual listings, and corporate finance transactions as well as corresponding road shows and awareness campaigns.

About Altona Rare Earths Plc

Altona is a resource exploration and development company focused on critical raw materials in Africa. The Company is listed on the Main Market of the London Stock Exchange with the ticker "REE". The Company currently holds copper, fluorspar and rare earths projects.

The Monte Muambe rare earths and fluorspar project is located in Northwest Mozambique. The Project was acquired in June 2021, and the Company has so far drilled over 7,800m, and defined a maiden JORC Mineral Resource Estimate of 13.6 million tons at 2.42% TREO. A Competent Person Report including the Scoping Study for Monte Muambe was published on 18 October 2023. The Project is now at Prefeasibility Study stage, with a focus on metallurgical testing for rare earths extraction. On 1 April 2025, the Company announced the discovery of high-grade Gallium in several drillholes and is currently assessing the mineralogy setting and distribution of this potential co-product of rare earths.

The Company is also assessing the possibility of rapidly putting in production high-grade fluorspar veins occurring at Monte Muambe along the western margin of the rare earth bearing carbonatite intrusion.

Altona is presently diversifying its portfolio by acquiring a limited number of critical raw material projects to complement Monte Muambe. The of the Sesana copper-silver project in Botswana, located just 25 km from MMG's Khoemacau Zone 5 copper-silver mine, represent the first steps towards the implementation of this expanded strategy.