RNS Number : 3099H Crimson Tide PLC 06 May 2025 THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION AS STIPULATED UNDER THE MARKET ABUSE REGULATION NO. 596/2014 (AS INCORPORATED INTO UK LAW BY VIRTUE OF THE EUROPEAN UNION (WITHDRAWAL) ACT 2018 AS AMENDED BY VIRTUE OF THE MARKET ABUSE (AMENDMENT) (EU EXIT) REGULATIONS 2019). UPON THE PUBLICATION OF THIS ANNOUNCEMENT VIA A REGULATORY INFORMATION SERVICE, THIS INSIDE INFORMATION IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN Crimson Tide plc ("Crimson Tide", "the Company" or "Group") Change of accounting reference date Crimson Tide plc (TIDE), the provider of the mpro5 process management app, announces that following a strategic review, it is now changing its year end date from 31 December to 30th April. The Company will announce unaudited second interims for the 6 months to 31 December 2024 ("Second Interims") before the end of May 2025 and will produce audited results for the 16-month period to 30 April 2025 ("Audited Results") in September 2025. The Second Interims will include non-recurring costs of approximately £0.5m in total, incurred in connection with headcount reductions made during the second half of 2024 and legal costs in connection with the approach by Ideagen Limited. The Audited Results will include additional exceptional costs of approximately £0.5m in respect of the failed merger with Checkit Plc, where the Scheme of Arrangement failed to be passed by Shareholders. The Audited Results will also include a write down of approximately £1.0m in relation to the carrying value of the Company's intangible software asset and a change of the related amortization period to six years (currently seven years). The Company also announces that it is making progress towards the appointment of a new Non-executive Chair and will make further announcements in due course. Crimson Tide plc Barrie Whipp, Executive Chairman Peter Hurter, Chief Financial Officer Cavendish Capital Markets Limited (Nominated adviser and Broker) Julian Blunt / Dan Hodkinson - Corporate Finance Andrew Burdis - Corporate Broking +44 1892 542444 +44 20 7220 0500 Crimson Tide provides mpro5, the process management app. For further information, see mpro5.com and on Crimson Tide plc, crimsontide.co.uk This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com. RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END NARUUSVRVSUVRAR