THIS ANNOUNCEMENT AND THE INFORMATION CONTAINED HEREIN IS FOR INFORMATION PURPOSES ONLY AND DOES NOT CONSTITUTE AN OFFER OF SECURITIES IN ANY JURISDICTION.

THIS ANNOUNCEMENT IS NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN OR INTO ANY JURISDICTION IN WHICH SUCH PUBLICATION, RELEASE OR DISTRIBUTION WOULD BE UNLAWFUL.

27 April 2026

Rosebank Industries plc

(the "Company" or "Rosebank" and together with its subsidiaries, the "Group")

Publication of Prospectus

Further to the announcement released on 15 April 2026, Rosebank is pleased to announce that the prospectus (the "Prospectus") in relation to the proposed admission of its entire issued ordinary share capital ("Ordinary Shares") to the equity shares (commercial companies) category of the Official List of the FCA and to trading on the Main Market of the London Stock Exchange (together, "Admission") has been published today.

It is expected that: (i) Admission will take place at 8.00 a.m. on 1 May 2026; and (ii) the Ordinary Shares will be cancelled from trading on AIM at 8.00 a.m. on 1 May 2026. The last day of trading in the Ordinary Shares on AIM is therefore expected to be 30 April 2026.

Rosebank does not intend to raise any funds or offer any new Ordinary Shares in connection with Admission. Following Admission, the Ordinary Shares will continue to be registered with their existing ISIN of JE00BSBJ5M88 and the Company's ticker symbol will continue to be ROSE. 

Shareholders should consult their own professional advisers regarding the consequences of Admission.

The Prospectus has been approved by the FCA and is available to view on Rosebank's website at: https://www.rosebankindustries.com/. A copy of the Prospectus will be submitted to the National Storage Mechanism and will be available for inspection at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

Enquiries:

Important information

This announcement has been issued by, and is the sole responsibility of, Rosebank Industries plc.

The information contained in this announcement is for background purposes only and does not purport to be full or complete. No reliance may be placed for any purpose whatsoever on the completeness, accuracy or fairness of the information or opinions contained in this announcement.

Nothing in this announcement constitutes legal, financial, tax or other advice or takes into account the particular investment objectives, financial situation, taxation position or needs of any person.

This announcement includes statements that are, or may be deemed to be, 'forward-looking statements'. These forward-looking statements can be identified by the use of forward-looking terminology, including the terms 'believes', 'estimates', 'plans', 'projects', 'anticipates', 'expects', 'intends', 'may', 'will', or 'should', or, in each case, their negative or other variations or comparable terminology. All forward-looking statements address matters that involve risks and uncertainties. Accordingly, there are or will be important factors that could cause the Group's actual results to differ materially from those indicated in these statements. Any forward-looking statements in this announcement reflect the Company's current views, intentions, beliefs or expectations with respect to future events and are subject to these and other risks, uncertainties and assumptions relating to the Group's operations, results of operations, growth strategy and liquidity. These forward-looking statements speak only as at the date of this announcement. Subject to any applicable obligations, the Company undertakes no obligation to update publicly or review any forward-looking statement, whether as a result of new information, future developments or otherwise.

Investec Bank plc ("Investec") is authorised by the Prudential Regulation Authority (the "PRA") and regulated in the UK by the PRA and the Financial Conduct Authority (the "FCA"). Investec is acting exclusively for the Company and no one else in connection with Admission. It will not regard any other person (whether or not a recipient of this announcement) as its client in relation to Admission and will not be responsible to anyone other than the Company for providing the protections afforded to its clients nor for giving advice in relation to Admission or any transaction or arrangement referred to in this announcement.