THIS ANNOUNCEMENT AND THE INFORMATION CONTAINED HEREIN IS NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES, AUSTRALIA, CANADA, THE REPUBLIC OF SOUTH AFRICA, JAPAN, ANY MEMBER STATE OF THE EUROPEAN ECONOMIC AREA OR ANY JURISDICTION IN WHICH IT WOULD BE UNLAWFUL TO DO SO.

7 April 2026

LEI Number: 2138004EUUU11OVHZW75

This announcement contains inside information.

450 plc

("450" or the "Company")

Update

Cancellation of Trading

Further to the announcement of 7 October 2025, in which the Company confirmed that it had signed a non-binding Head of Terms for the potential acquisition of the entire issued and to be issued share capital of Silvercloud Holdings Limited ("Silvercloud"), the sole shareholder of Le Chameau Holdings Limited ("Le Chameau") (the "Potential Transaction"), the Directors of 450 (the "Directors") provide this update.

The Potential Transaction is not progressing as quickly as the Directors anticipated due to the time it has taken to finalise certain transaction parameters. The Directors of the Company also consider that, given the early stage of the Potential Transaction, they are not yet able to make any appropriate alternative disclosures in order that investors can understand the impact of the Potential Transaction on the Company to enable the suspension of the Company's shares to be lifted. Moreover, for a number of reasons, including ensuring that all resources are focused on Le Chameau's forthcoming Centenary year, the Directors consider that the Potential Transaction would be better progressed if 450 were unquoted.

Accordingly, with the irrevocable support of the Company's largest shareholder representing more than 75 per cent. of the Company's issued share capital the Directors have resolved not to apply for an extension of the current suspension but to allow the admission of the Company's shares to trading on AIM to be cancelled on 8 April 2026 (the "Cancellation Date"). The cancellation takes effect pursuant to Rule 41 of the AIM Rules for Companies as the Company's shares have been suspended from trading for more than 6 months.

Principal effects of the Proposed Cancellation

The Directors are aware that shareholders may wish to acquire or dispose of shares in the Company following the Cancellation Date. The Company will therefore consult with shareholders about providing a liquidity option to shareholders which might include implementing a matched bargain facility after the Cancellation Date.

On the Cancellation Date, Zeus Capital Limited will cease to be the nominated adviser of the Company pursuant to the AIM Rules for Companies and the Company will no longer be required to comply with the AIM Rules for Companies. However, the Company will remain subject to the City Code on Takeovers and Mergers (the "the Takeover Code") until 8 April 2028.

Enquiries:

 450 plc

Tel: +44(0)207 004 2700

James Corsellis

Zeus Capital Limited (Nominated Adviser and Broker)

Tel: +44(0)203 829 5000

Katy Mitchell

Harry Ansell

The person responsible for arranging the release of this announcement on behalf of the Company is James Corsellis, Director of the Company.