Update re Investment in CleanTech Lithium Plc.

27 January 2026

Metals One Plc

("Metals One" or the "Company")

Update re Investment in CleanTech Lithium Plc

Metals One (AIM: MET1, OTCQB: MTOPF), a critical and precious metals project developer and investor, announces it was approached to sell a block of 7,500,000 shares in CleanTech Lithium (AIM: CTL, Frankfurt:T2N) for £0.745 million representing approximately a 100% profit on the Company's share purchase price in August 2025. Following the sale, Metals One holds 12,850,000 shares in CleanTech Lithium, representing approximately 6.33% of CleanTech Lithium's issued share capital, in addition to 20,000,000 warrants with an exercise price of 6 pence expiring in August 2030.

Daniel Maling, Managing Director of Metals One, commented:

"We are pleased with the progress CleanTech Lithium is making in advancing its projects in Chile towards a Final Investment Decision. After releasing some profit to satisfy market demand, Metals One retains significant upside exposure to this investment through shares and warrants."

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About Metals One

Metals One is pursuing a strategic portfolio of critical and precious metals projects and investments underpinned by the Western World's urgent need for reliably and responsibly sourced raw materials - and record high gold prices. Metals One's shares are listed on the London Stock Exchange's AIM Market (MET1) and on the OTCQB Venture Market in the United States (MTOPF).

Map of Metals One projects/investments

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Market Abuse Regulation (MAR) Disclosure

The information set out herein is provided in accordance with the requirements of Article 19(3) of the Market Abuse Regulations (EU) No. 596/2014 which forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 ('MAR').

Nominated Adviser

Beaumont Cornish Limited ("Beaumont Cornish") is the Company's Nominated Adviser and is authorised and regulated by the FCA. Beaumont Cornish's responsibilities as the Company's Nominated Adviser, including a responsibility to advise and guide the Company on its responsibilities under the AIM Rules for Companies and AIM Rules for Nominated Advisers, are owed solely to the London Stock Exchange. Beaumont Cornish is not acting for and will not be responsible to any other persons for providing protections afforded to customers of Beaumont Cornish nor for advising them in relation to the proposed arrangements described in this announcement or any matter referred to in it.