Cleantech Lithium PlcLSE: CTL

Investor Presentation via Investor Meet Company

· Issued by Cleantech Lithium Plc

11 March 2026

CleanTech Lithium PLC ("CTL", CleanTech Lithium" or the "Company")

Investor Presentation via Investor Meet Company

CleanTech Lithium PLC (AIM: CTL, Frankfurt:T2N) an exploration and development company, advancing sustainable lithium projects in Chile, announces that Chief Executive Officer, Ignacio Mehech, will host a live webinar relating to the news of the agreement of terms on which the Special Lithium Operating Contract (CEOL) for Laguna Verde will be awarded via Investor Meet Company on 11 March 2026, 17:00 GMT.

This is a transformational milestone for the Company. Investors are encouraged to register and attend, signing up is free via the following link:

https://www.investormeetcompany.com/cleantech-lithium-plc/register-investor

Investors who already follow CleanTech Lithium Plc on the Investor Meet Company platform will automatically be invited via email and the platform.

For further information contact:

CleanTech Lithium PLC

Ignacio Mehech/Gordon Stein/Nick Baxter

Office: +44 (0) 1534 668 321

Mobile: +44 (0) 7494 630 360

Beaumont Cornish Limited (Nominated Adviser)

Roland Cornish/Asia Szusciak

+44 (0) 20 7628 3396

IStar Capital Limited (Joint Broker)

Daniel Fox-Davies

+44 (0) 20 3884 8450

daniel@istar.capital

Canaccord Genuity (Joint Broker)

James Asensio

+44 (0) 20 7523 4680

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.

Notes

CleanTech Lithium (AIM:CTL, Frankfurt:T2N) is an exploration and development company advancing lithium projects in Chile for the clean energy transition. CleanTech Lithium has two key lithium projects in Chile, Laguna Verde and Viento Andino, and exploration stage project in Arenas Blancas (Salar de Atacama), located in the lithium triangle, a leading centre for battery grade lithium production.

CleanTech Lithium is committed to utilising Direct Lithium Extraction ("DLE"), which 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: www.ctlithium.com

**ENDS**