4 April 2025

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

CEOL Application Process Update

CleanTech Lithium PLC (AIM: CTL), a lithium exploration and development company operating in Chile, further to its announcement on 15 January 2025 ("Application RNS"), provides an update regarding the Special Lithium Operating Contract ("CEOL") application process for the Laguna Verde project.

As outlined in the Application RNS, the Company expected the simplified procedure for the CEOL Award Mechanism to be as follows: Submission of applications closed on 31 January 2025 following which the Ministry IT and legal departments had 5 business days to register and organise the submittal. The Ministry´s Lithium and Salar Unit then has 45 business days to review and analyse the request. Once this analysis is completed and the Lithium and Salar Unit verifies that all the information and documents needed to enter the simplified procedure have been submitted then an administrative act to accept the application will be made.

This timetable indicated that an update from the Government was expected at the beginning of April confirming which applicants will enter direct negotiation on the CEOL with the Ministry. So far, no such update has been made and following recent discussions between CleanTech Lithium and the Ministry, the Company understands that the administration process is still progressing for all applicants. The Company will inform the market as soon as official communication is received.

Steve Kesler, Executive Chairman and Interim CEO, CleanTech Lithium said:

"Clearly, the process is taking a little longer than we had initially anticipated but we look forward to the response when the Ministry has completed its review process."

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) is an exploration and development company advancing lithium projects in Chile for the clean energy transition. Committed to net-zero, CleanTech Lithium's mission is to scale battery grade lithium at its flagship project, Laguna Verde, using Direct Lithium Extraction technology powered by renewable energy.

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**