The information contained within this announcement is deemed to constitute inside information as stipulated under the retained EU law version of the Market Abuse Regulation (EU) No. 596/2014 (the "UK MAR") which is part of UK law by virtue of the European Union (Withdrawal) Act 2018. The information is disclosed in accordance with the Company's obligations under Article 17 of the UK MAR. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

3 September 2026

Technology Minerals Plc

("Technology Minerals" or the "Company")

Change of Auditor

Technology Minerals Plc (LSE: TM1), the UK listed company focused on building national resource and manufacturing resilience, announces the appointment of RPG Crouch Chapman LLP ("RPGCC") as its external auditor with immediate effect.

The appointment of RPGCC follows the resignation of PKF Littlejohn LLP ("PKF"). PKF has confirmed to the Company that there are no circumstances connected with its resignation which it considers should be brought to the attention of the members or creditors of the Company.

About Technology Minerals Plc

Technology Minerals is developing the UK's first listed, sustainable circular economy for battery metals, using cutting-edge technology to recycle, recover, and re-use battery technologies for a renewable energy future. Technology Minerals is focused on raw material exploration required for Li-ion batteries, whilst solving the ecological issue of spent Li-ion batteries, by recycling them for re-use by battery manufacturers.

Technology Minerals' Mantle Strategy

The Mantle strategy is Technology Minerals' repositioning as a listed national resilience company, built on the conviction that the private sector must play a central role in securing the UK's sovereign supply of critical resources, capabilities and infrastructure. It aligns the Company directly with the UK Government's Critical Minerals Strategy (Vision 2035) and its targets for domestic production, recycling and reduced reliance on single-country supply.

Mantle is executed across three pillars: Natural Resources (domestic reclamation, extraction, international exploration and stockpiling, anchored by Recyclus Group and the Company's mineral exploration assets); Critical Capabilities (foundational midstream and downstream capacity); and an Enabling Ecosystem (the partnerships and investments needed to pre-empt emerging requirements). Delivery will begin with a consolidation phase that resets the balance sheet and catalyses existing assets, followed by execution of a near-term pipeline of value-accretive opportunities - several revenue-generating and aligned with UK defence and national resilience requirements - as the Company scales towards becoming a critical part of the UK's resilience ecosystem.

Further information on Technology Minerals is available at www.technologyminerals.co.uk