19 March 2026

Catenai PLC

("Catenai", the "Company")

Alludium secures first paying customers

Catenai PLC (AIM: CTAI), the AIM-quoted provider of technology and digital solutions, is pleased to announce that Alludium Ltd ("Alludium"), its investee company and developer of a no-code AI Agent Operating System, has advised the Company that it has secured its first paying customers since the platform's public-commercial launch on 10 March 2026 and following an initial seven-day trial period.

Catenai reminds shareholders that John Farthing, John Frizelle and Barry Downes will provide a live presentation relating to Alludium via Investor Meet Company today at 09:00 GMT. The presentation is open to all existing and potential shareholders. Investors can sign up to Investor Meet Company for free and add to meet Catenai via: https://www.investormeetcompany.com/catenai-plc/register-investor.

This announcement contains inside information for the purposes of the UK Market Abuse Regulation. The person who arranged for release of this announcement on behalf of the Company was John Farthing, Interim Chief Executive Officer of the Company and the Directors of the Company are responsible for the release of this announcement.

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Notes to Editors:

About Catenai PLC

Catenai is an AIM quoted provider of digital media and technology services. The Company has an experienced IT team of project managers and integrators who have deployed systems across corporate, government and educational sectors.

www.catenaiplc.com

Caution regarding forward looking statements

Certain statements in this announcement, are, or may be deemed to be, forward looking statements. Forward looking statements are identified by their use of terms and phrases such as ''believe'', ''could'', "should" ''envisage'', ''estimate'', ''intend'', ''may'', ''plan'', ''potentially'', "expect", ''will'' or the negative of those, variations or comparable expressions, including references to assumptions. These forward looking statements are not based on historical facts but rather on the Directors' current expectations and assumptions regarding the Company's future growth, results of operations, performance, future capital and other expenditures (including the amount, nature and sources of funding thereof), competitive advantages, business prospects and opportunities. Such forward looking statements reflect the Directors' current beliefs and assumptions and are based on information currently available to the Directors.