14 August 2025

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

Grant of Options

CleanTech Lithium PLC (AIM: CTL), an exploration and development company advancing sustainable lithium projects in Chile, announces that a total of 5,006,153 share options have been granted to Senior Management under the Company´s Share Option Plan.

4,000,000 option shares have been granted to the CEO, Ignacio Mehech, as part of his remuneration package and in accordance with the Company´s remuneration strategy to incentivise executive performance. The option shares have an exercise price of £0.06 (the "Option Shares") and the following Performance Conditions:-

-      800,000 Option Shares will vest on completion of the DFS and acceptance by the Board

-      800,000 Option Shares will vest on receipt of the Laguna Verde environmental permit (RCA)

-      800,000 Option Shares will vest when project finance is in place to commence construction at Laguna Verde

-      800,0000 Option Shares will vest when commercial production is achieved at Laguna Verde

-    800,000 Option Shares will vest when CleanTech Lithium share price reaches £0.70 for a consecutive period of 20 days. 

1,006,153 minimal cost option shares with an exercise price of £0.02, which is the Company´s nominal share price, have been granted to Gordon Stein, CFO and ex-Director, in settlement of outstanding fees and pension contribution of £105,987.07. The effective conversion price used for the calculation of £0.1054 ("Conversion Price") was the monthly VWAP for the period October 2024 to July 2025 during which fees were deferred. The 1,006,153 minimal cost option shares can be exercised anytime from the date of grant up until the fifth anniversary of that date and are designed to give Mr Stein value equivalent to the outstanding amounts converted at the Conversion Price in a tax efficient manner.

The information contained in Appendix 1 below is disclosed in accordance with Article 19 of UK MAR.

The information communicated within this announcement is deemed to constitute inside information as stipulated under the Market Abuse Regulations (EU) No 596/2014 which is part of UK law by virtue of the European Union (Withdrawal) Act 2018. Upon publication of this announcement, this inside information is now considered to be in the public domain. The person who arranged for the release of this announcement on behalf of the Company was Steve Kesler, Director and Non-Executive Chairman.

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.

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") with reinjection of spent brine resulting in no aquifer depletion. 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: www.ctlithium.com

**ENDS**

Appendix 1

 Notification of Transactions of Directors/Persons Discharging Managerial Responsibility and Connected Persons