21 February 2025

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

Extension of Broker Option and Retail Offer

Further to the announcements made on 10 February 2025 (RNS Number: 5769W) and 17 February 2025 (RNS Number: 2615X), CleanTech Lithium PLC announces that it is extending the deadlines for both the Broker Option and Retail Offer, partly due to an administrative delay registering the ISIN for the warrant instrument. No other changes to the timetable have been made.

Revised Expected Timetable

The extension provides additional time for investors and shareholders to participate as the Company progresses its strategy to develop sustainable lithium projects in Chile, supporting the global energy transition. Bids and applications already made remain valid and binding, with no further action required from those who have already submitted a bid in the Broker Option Bookbuild or an  application for the Retail Offer.

As stated in the RNS circulated on 10 February 2025, the Company announced an accelerated bookbuild to raise gross proceeds of £2.4 million by way of a placing of 15,000,000 new Ordinary Shares at a price of 16 pence per new Ordinary Share.

The Company also granted a Broker Option to Fox-Davies Capital Limited, pursuant to which up to an additional £2.0 million can be raised at the Issue Price. In view of the potential interest of retail shareholders in participating in the Fundraising, the Company also announced a retail offer via BookBuild (the "Retail Offer") of new ordinary shares (the "Retail Offer Shares") at a price of 16 pence per Retail Offer Share together with one Warrant for every Retail Offer Share. The Retail Offer is only being made available to existing shareholders of the Company on the same financial terms as shares are available under the Broker Option.

The amount raised under the Broker Option and the Retail Offer will not in aggregate exceed £2 million.

Words and expressions defined in the Company's announcements of 10 and 17 February 2025 shall have the same meaning in this announcement.

Notes

CleanTech Lithium (AIM:CTL, Frankfurt:T2N, OTCQX:CTLHF) 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 become a new supplier of battery grade lithium using Direct Lithium Extraction technology powered by renewable energy.

CleanTech Lithium has two key lithium projects in Chile, Laguna Verde and Viento Andino, and exploration stage projects in Llamara and Arenas Blancas (Salar de Atacama), located in the lithium triangle, a leading centre for battery grade lithium production. The two most advanced projects: Laguna Verde and Viento Andino are situated within basins controlled by the Company, which affords significant potential development and operational advantages. All four projects have good access to existing infrastructure.

CleanTech Lithium is committed to utilising Direct Lithium Extraction 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. www.ctlithium.com

**ENDS**