RCS — CleanTech Lithium — LME Week and Investor Webinar

For best results when printing this announcement, please click on link below: RNS Number: 6417Y CleanTech Lithium PLC 13 October 2026 13 October 2026 CleanTech Lithium PLC (“CTL”, CleanTech Lithium” or the “Company”) LME Week and Investor Webinar CleanTech Lithium PLC (AIM: CTL, Frankfurt:T2N) an exploration and development company, advancing sustainable lithium projects in Chile, confirms Non-Executive Chairman Steve Kesler will be participating in the Benchmark Minerals Intelligence seminar during LME Week on Tuesday 20th October.

The event brings together several senior industry representatives, and the panel Steve joins will be focused on the future of lithium, project development, and evolving market dynamics. Registration CleanTech Lithium will also be attending the Anglo-Chilean Society “A New Era for Mining in Chile" event on the same day in London where the Minister of Economy and Mining, Daniel Mas, is due to give a keynote address.

Registration Investor Webinar The Company will host a live investor webinar this Thursday 15th October at 10:00am (BST) to discuss the recent announcement of acquiring two mining properties in Argentina, the encouraging technical results produced in Chile and the Special Lithium Operating Contract (CEOL) for Laguna Verde progressing through its final approval process, and further upcoming milestones. Shareholders and investors can join for free via the Investor Meet Company platform: Investors who already follow CleanTech Lithium PLC on the Investor Meet Company platform will automatically be invited via email and the platform.

com) Daniel Fox-Davies Canaccord Genuity (Broker) +44 (0) 20 7523 4680 James Asensio About Reach announcements This is a Reach announcement. Reach is an investor communication service aimed at assisting listed and unlisted (including AIM quoted) companies to distribute media only / non-regulatory news releases into the public domain. Information required to be notified under the AIM Rules for Companies, Market Abuse Regulation or other regulation would be disseminated as an RNS regulatory announcement and not on Reach.

Distribution: This announcement is not authorised for distribution into North America or any other jurisdiction where to do so would constitute a violation of the relevant laws or regulations of that jurisdiction. Notes CleanTech Lithium (AIM:CTL, Frankfurt:T2N) is an exploration and development company advancing lithium projects in Chile and Argentina for the clean energy transition.

CleanTech Lithium has two key lithium projects in Chile, Laguna Verde and Viento Andino, and exploration stage projects in Arenas Blancas (Salar de Atacama, Chile) and Antofalla (Salar de Antofalla, Argentina), located in the lithium triangle, a leading centre for battery grade lithium production. CleanTech Lithium and the Mining Ministry in Chile have agreed the contractual terms for the Special Lithium Operating Contract (“CEOL”) for Laguna Verde, subject to final ratification. CleanTech Lithium is committed to utilising Direct Lithium Extraction ("DLE") with reinjection of spent brine.

Direct Lithium Extraction is a transformative technology which removes lithium from brine with higher recoveries, short development lead times and no extensive evaporation pond construction. For more information, please visit: *ENDS* This information is provided by Reach, the non-regulatory press release distribution service of RNS, part of the London Stock Exchange. Terms and conditions relating to the use and distribution of this information may apply.

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