THIS ANNOUNCEMENT AND THE INFORMATION CONTAINED HEREIN IS RESTRICTED AND IS NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM THE UNITED STATES, AUSTRALIA, CANADA, JAPAN, NEW ZEALAND, THE REPUBLIC OF SOUTH AFRICA OR ANY OTHER JURISDICTION IN WHICH SUCH RELEASE, PUBLICATION OR DISTRIBUTION WOULD BE UNLAWFUL.

CleanTech Lithium PLC

 ("CleanTech Lithium" or the "Company")

Results of Retail Offer

29 August 2025 - CleanTech Lithium PLC (AIM: CTL), an exploration and development company advancing sustainable lithium projects in Chile, is pleased to announce the results of its retail offer to existing shareholders (the "Retail Offer").

The Retail Offer was over-subscribed and has conditionally raised gross proceeds of £250,000 which will be in addition to the £4.7 million conditionally raised pursuant to the Placing and Broker Option (as announced on 11 August 2025 and 26 August 2025 respectively).

The Retail Offer, the Conditional Placing and the Broker Option (each as defined in the Company's announcement of the fundraising on 11 August 2025) remain conditional on shareholder approval and admission of the ordinary shares subscribed for thereunder (together, the "New Ordinary Shares") to trading on AIM ("Admission").

Steve Kesler, Non-Executive Chairman of CleanTech Lithium, said:

"We would like to thank our existing retail investors for their continued support and engagement. Their participation, alongside institutional backing, will enable us to drive the Laguna Verde project forward and deliver on our key upcoming milestones.

With the recent acquisition of the Minergy licences positioning us favourably for the CEOL application, the coming months will be pivotal as we complete the PFS for Laguna Verde and progress our CEOL application, which will underpin future strategic investor discussions."

Results of the Retail Offer

5,000,000 new ordinary shares ("Retail Offer Shares") will be issued to existing retail shareholders who subscribed via the BookBuild platform at a price of 5 pence per Retail Offer Share (the "Issue Price") pursuant to the Retail Offer.

The Retail Offer Shares carry a warrant entitlement of one warrant ("Warrant") for every Retail Offer Share issued pursuant to the Retail Offer. Each Warrant grants the holder the right to subscribe for one new ordinary share at a price of 6p, being at a 20% per cent premium to the Issue Price, at any time from one year after the date of Admission until up to and including the date which is 3 years from the date of Admission. It is expected that Admission will take place on or about 1 September 2025.

Subject to shareholder approval, a total of 5,000,000 Retail Offer Shares will be issued pursuant to the Retail Offer representing approximately 2.5 per cent. of the Company's enlarged ordinary share capital following Admission.

The Retail Offer Shares will, when issued, be credited as fully paid and will rank pari passu in all respects with the existing ordinary shares of the Company, including the right to receive all dividends or other distributions made, paid or declared in respect of such shares after the date of issue of the Retail Offer Shares.

Upcoming General Meeting

The Retail Offer is subject to shareholder approval at the general meeting of the Company to be held at 10:00 a.m. on 29 August 2025 (the "General Meeting"), further details of which are set out in a shareholder circular published by the Company on 13 August 2025, which is available on the Company's website https://ctlithium.com/investors/circulars-documents/.

Admission and Trading

It is currently expected that Admission will become effective, and trading of the New Ordinary Shares will commence on AIM, at 8.00 a.m. on 1 September 2025.

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 Chairman.

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The distribution of this announcement and the offering of the Retail Offer Shares in certain jurisdictions may be restricted by law. No action has been taken by the Company or Fox-Davies Capital Limited that would permit an offering of such shares or possession or distribution of this announcement or any other offering or publicity material relating to such shares in any jurisdiction where action for that purpose is required. Persons into whose possession this announcement comes are required by the Company and the Bookrunner to inform themselves about, and to observe, any such restrictions.

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This announcement is not for release, publication or distribution, in whole or in part, directly or indirectly, in or into Australia, Canada, Japan or the Republic of South Africa or any jurisdiction into which the publication or distribution would be unlawful. This announcement is for information purposes only and does not constitute an offer to sell or issue or the solicitation of an offer to buy or acquire shares in the capital of the Company in  Australia, Canada, Japan, New Zealand, the Republic of South Africa or any jurisdiction in which such offer or solicitation would be unlawful or require preparation of any prospectus or other offer documentation or would be unlawful prior to registration, exemption from registration or qualification under the securities laws of any such jurisdiction. 

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This announcement is not for publication or distribution, directly or indirectly, in or into the United States of America.  This announcement is not an offer of securities for sale into the United States.  The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States, except pursuant to an applicable exemption from registration.  No public offering of securities is being made in the United States.

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Fox-Davies Capital Limited is authorised and regulated by the FCA in the United Kingdom and is acting as Retail Offer Coordinator for the Company and no one else in connection with the Retail Offer and will not be responsible to anyone (including any participants) other than the Company for providing the protections afforded to its clients or for providing advice in relation to the Retail Offer or any other matters referred to in this announcement.

Beaumont Cornish Limited, which is authorised and regulated in the United Kingdom by the Financial Conduct Authority, is acting as nominated adviser to the Company in relation to the Retail Offer and is not acting for any other persons in relation to the Retail Offer. Beaumont Cornish Limited is acting exclusively for the Company and for no one else in relation to the matters described in this announcement and is not advising any other person and accordingly will not be responsible to anyone other than the Company for providing the protections afforded to clients of Beaumont Cornish Limited, or for providing advice in relation to the contents of this announcement or any matter referred to in it.

**ENDS**