4 July 2025

ALTONA RARE EARTHS PLC

("Altona" or "the Company")

ALTONA JOINS FAB - The German FEDERATION

of INTERNATIONAL Mining and RESOURCES

Altona (LSE: REE) (FSE: A8LA), a resource exploration and development company focused on Critical Raw Materials ("CRMs") in Africa, is pleased to announce that it has joined the German Federation of International Mining and Resources ("FAB").

The FAB represents the interests of its members in numerous national and international political and economic bodies. Through Federation of German Industries (BDI) and Euromines memberships, under the umbrella organization Association of Raw Materials and Mining (VRB), FAB is deeply involved in policy making in the mining and mineral transformation sector, including with respect to funding of CRMs development.

As the Company continues to engage with prospective strategic partners for the Monte Muambe rare earths project, its membership in FAB will strengthen Altona's network across Europe and Germany, unlock new opportunities for project-level funding and strategic collaboration, and enhance the visibility and value of its quotation on the Frankfurt and Stuttgart Stock Exchanges (WKN: A2N6NH).

In addition, FAB membership will elevate Altona's profile within the European investment and industrial landscape, helping to increase awareness of its portfolio of critical raw material projects - including rare earths, gallium, fluorspar, and copper - across key European markets.

Cedric Simonet, CEO of Altona, commented:

"We are very pleased to join the FAB at a pivotal time in our growth, as we broaden our engagement with European industry stakeholders, potential offtake partners, and the wider investment community.

"Altona's diversified portfolio of critical raw material (CRM) assets and clear development roadmap position us to contribute meaningfully to Europe's efforts to enhance resource independence - particularly in securing strategic materials vital for defence, high-tech manufacturing, and the green energy transition.

"Our membership of FAB will strengthen our visibility across Europe and serve as a valuable platform to connect with strategic partners and long-term investors who share our commitment to responsible, high-impact development of critical mineral resources."

FAB's Managing Director, Dr Martin Wedig, added: "The German Federation of International Mining and Resources welcomes Altona Rare Earths among its members. Altona's membership participation once again highlights the growing importance of securing sustainable supply chains for CRMs for use in Germany and Europe.

"The stable supply of CRMs is essential for the implementation of the green and digital transformation. The European Union has therefore adopted the Critical Raw Materials Act (CRMA) to ensure a secure and sustainable supply. The EU aims to extract, process, and recycle a larger proportion of the raw materials it needs itself, thereby reducing its dependence on third countries. As part of this, the approval process for raw material extraction and processing projects is to be accelerated. The development of new technologies for raw material extraction and recycling is also to be promoted.

"The FAB helps to connect various industrial players, make their voices heard in the political arena, and launch attractive financing initiatives. We congratulate Altona for joining us and look forward to working together within the FAB network."

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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 FAB

The FAB is a network of German and international companies that are active in raw material extraction and related fields abroad or intend to get involved there in the future. The FAB forms the platform for information and exchange of experience about raw material extraction and management. Its objective are to foster cooperation between German government bodies and the industry, to develop partnership between German industries and critical raw material sources worldwide, and to align and integrate foreign trade and development policy.

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 acquisition of the Sesana copper-silver project in Botswana, located just 25 km from MMG's Khoemacau Zone 5 copper-silver mine, represents the first steps towards the implementation of this expanded strategy.