FOR IMMEDIATE RELEASE

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, IN, INTO OR FROM ANY JURISDICTION (INCLUDING THE UNITED STATES) WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION.

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION; THIS INSIDE INFORMATION IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN.

17 JANUARY 2024

RECOMMENDED ACQUISITION

of

Rotala PLC

("Rotala" or the "Company")

by

Rotala Group Limited

("RGL")

a newly incorporated entity directly and indirectly owned and controlled by Simon Dunn, Robert Dunn, John Gunn, the spouses of Simon Dunn and Robert Dunn, and Wengen Pension Plan

Scheme of Arrangement becomes Effective

On 20 November 2023, the boards of Rotala and RGL announced that they had reached agreement on the terms of a recommended cash offer, pursuant to which RGL would acquire the entire issued and to be issued share capital of Rotala for 63.5 pence per share (the "Acquisition").

The Acquisition is to be effected by means of a Court-sanctioned scheme of arrangement under Part 26 of the Companies Act 2006 (the "Scheme"), full details of which were sent to the shareholders of Rotala in the circular dated 11 December 2023 (the "Scheme Document").

On 4 January 2024, the Scheme was approved by the requisite majorities of Scheme Shareholders at the Court Meeting and the Special Resolutions in connection with the implementation of the Scheme were passed by the requisite majorities of Rotala Shareholders at the General Meeting.

On 15 January 2024, the Boards of Rotala and RGL announced that the Court had sanctioned the Scheme on 15 January 2024.

The boards of Rotala and RGL are pleased to announce that the Scheme has today become Effective in accordance with its terms, following delivery of the Court Order to the Registrar of Companies, and therefore the entire issued and to be issued share capital of Rotala is now owned by RGL. As a result, Rotala is no longer in an "Offer Period" as defined in the Code and accordingly the dealing disclosure requirements previously notified to investors no longer apply.

Capitalised terms used and not defined in this announcement have the meanings given to them in the Scheme Document.

All references in this announcement to times are to times in London, unless otherwise stated.

Settlement

Under the terms of the Scheme, Scheme Shareholders on the register of members of Rotala at the Scheme Record Time, being 6.00 p.m. on 16 January 2024, are entitled to receive 63.5 pence in cash for every Scheme Share held. Cheques will be despatched to Scheme Shareholders holding Scheme Shares in certificated form and the CREST accounts of Scheme Shareholders holding Scheme Shares in uncertificated form will be credited within 14 days of today's date.

Board changes

Rotala further announces that Graham Spooner, Deputy Chair and Senior Independent Director, and Graham Peacock, Independent Non-Executive Director, have tendered their resignations as directors of the Company effective from the date of cancellation of admission to trading on AIM of the Rotala Shares.

Suspension and cancellation of trading

Trading on AIM in Rotala Shares was suspended with effect from 7.30 a.m. today. Following the application by Rotala to the London Stock Exchange, cancellation of admission to trading on AIM of Rotala Shares is expected to become effective at 7.00 a.m. on 18 January 2024.

Shoosmiths LLP is acting as legal adviser to RGL. Penningtons Manches Cooper LLP is acting as legal adviser to Rotala.

The person responsible for arranging the release of this announcement on behalf of Rotala is Kim Taylor, a director of Rotala.

IMPORTANT NOTICES:

This announcement is for information purposes only. It does not constitute an offer or form part of any offer or an invitation to purchase, subscribe for, sell or issue any securities or a solicitation of any offer to purchase, subscribe for, sell or issue any securities pursuant to this announcement or otherwise in any jurisdiction in which such offer or solicitation is unlawful. This announcement does not comprise a prospectus or a prospectus exempted document. The Acquisition will be made solely by means of the Scheme Document and the Forms of Proxy, which will contain the full terms and conditions of the Acquisition, including details of how the Acquisition may be accepted.

Disclaimers

Shore Capital and Corporate Limited and Shore Capital Stockbrokers Limited (together "Shore Capital"), which are authorised and regulated in the UK by the FCA, are acting respectively as financial adviser and broker exclusively for Rotala and no one else in connection with the matters set out in this announcement and will not regard any other person as its client in relation to the matters in this announcement and will not be responsible to anyone other than Rotala for providing the protections afforded to clients of Shore Capital, nor for providing advice in relation to any matter referred to herein.

KPMG LLP ("KPMG"), which is authorised and regulated in the UK by the FCA, is acting exclusively as financial adviser to RGL and no one else in connection with the matters set out in this announcement and will not regard any other person as its client in relation to the matters in this announcement and will not be responsible to anyone other than RGL for providing the protections afforded to clients of KPMG, nor for providing advice in relation to any matter referred to herein. Neither KPMG nor any of its affiliates, respective directors, officers, employees and agents owes or accepts any duty, liability or responsibility whatsoever (whether direct or indirect, whether in contract, in tort, under statute or otherwise) to any person who is not a client of KPMG in connection with the matters referred to in this announcement, or otherwise.

This announcement is for information purposes only and is not intended to, and does not constitute, or form part of any offer, invitation, inducement or the solicitation of an offer to purchase, otherwise acquire, subscribe for, sell or otherwise dispose of or exercise rights in respect of any securities or the solicitation of any vote or approval in any jurisdiction pursuant to the Acquisition or otherwise. The Acquisition will be made solely through the Scheme Document and the accompanying Forms of Proxy (or by any other document by which the Acquisition is made), which will together contain the full terms and conditions of the Acquisition and the Scheme, including details of how to vote in respect of the Acquisition and the Scheme. Any decision in respect of, or other response to, the Acquisition should be made only on the basis of the information contained in the Scheme Document or any document by which the Acquisition is made.

To the extent permitted by applicable law, in accordance with normal UK practice, RGL or its nominees, or its brokers (acting as agents), may from time to time make certain purchases of, or arrangements to purchase Rotala Shares, other than pursuant to the Acquisition, until the date on which the Scheme becomes Effective, lapses or is otherwise withdrawn. These purchases may occur either in the open market at prevailing prices or in private transactions at negotiated prices. Any information about such purchases will be disclosed as required in the UK and will be reported to a regulatory information service and will be available on the London Stock Exchange website at www.londonstockexchange.com.

Overseas Shareholders

The availability of the Acquisition to Overseas Shareholders and the distribution of this announcement in, into or from jurisdictions other than the United Kingdom may be restricted by the laws of those jurisdictions and therefore persons into whose possession this announcement comes should inform themselves of, and observe, any such restrictions. Any person (including without limitation, nominees, trustees and custodians) who would, or otherwise intends to, forward this announcement, the Scheme Document or any accompanying document to any jurisdiction outside the United Kingdom should refrain from doing so and seek appropriate professional advice before taking any action. If any Overseas Shareholder remains in any doubt, it should consult an appropriate independent professional adviser in its relevant jurisdiction without delay. In particular, the ability of persons who are not resident in the United Kingdom to vote their Rotala Shares at the Court Meeting or the General Meeting or to execute and deliver Forms of Proxy appointing another to vote their Rotala Shares in respect of the Court Meeting or the General Meeting on their behalf, may be affected by the laws of the relevant jurisdiction in which they are located.

Failure to comply with any such restrictions may constitute a violation of the securities laws of any such jurisdiction. To the fullest extent permitted by applicable law, the companies and persons involved in the Acquisition disclaim any responsibility or liability for the violation of such restrictions by any person. This announcement has been prepared for the purposes of complying with the law of England and Wales and the Takeover Code and the information disclosed may not be the same as that which would have been disclosed if this announcement had been prepared in accordance with the laws of jurisdictions outside of England and Wales.

Additional Information for US Investors

The Acquisition is being made to acquire the securities of an English company by means of a scheme of arrangement provided for under the law of England and Wales. A transaction effected by means of a scheme of arrangement is not subject to the tender offer or proxy solicitation rules under the US Exchange Act of 1934 (the "US Exchange Act"). Accordingly, the Scheme will be subject to disclosure requirements and practices applicable in the United Kingdom to schemes of arrangement, which are different from the disclosure requirements of the US tender offer and proxy solicitation rules. The financial information included in this announcement and the Scheme documentation has been or will have been prepared in accordance with International Financial Reporting Standards and thus may not be comparable to financial information of US companies or companies whose financial statements are prepared in accordance with US GAAP. US GAAP differs in certain significant respects from the International Financial Reporting Standards. None of the financial information in this announcement or the Scheme documentation has been audited in accordance with auditing standards generally accepted in the US or the auditing standards of the Public Company Accounting Oversight Board (United States). If RGL were to elect to implement the Acquisition by means of a Takeover Offer and determines to extend such Takeover Offer into the US, such Takeover Offer would be made in compliance with applicable US laws and regulations, including the US Exchange Act and Regulation 14E thereunder. Such a Takeover Offer would be made in the United States by RGL and no one else.

The receipt of cash pursuant to the Acquisition by a US holder as consideration for the transfer of its Rotala Shares pursuant to the Scheme will likely be a taxable transaction for US federal income tax purposes and under applicable US state and local, as well as foreign and other, tax laws. Each Rotala Shareholder is urged to consult his legal, tax and financial advisers immediately regarding the tax consequences of the Acquisition applicable to him/her, including under applicable US state and local, as well as foreign and other, tax laws.

It may be difficult for US holders to enforce their rights and claims arising out of the US federal securities laws in connection with the Acquisition, since RGL and Rotala are located in countries other than the United States, and some or all of their officers and directors may be residents of countries other than the United States. US holders may not be able to sue a non-US company or its officers or directors in a non-US court for violations of US securities laws. Further, it may be difficult to compel a non-US company and its affiliates to subject themselves to a US court's judgement.

In the event that the Acquisition is implemented by way of Takeover Offer, in compliance with applicable UK laws, RGL, its dealer manager (and their advisors or affiliates), or its nominees, or its brokers (acting as agents), may from time to time make certain purchases of, or arrangements to purchase, shares or other securities of Rotala other than pursuant to such Takeover Offer during the period in which such Takeover Offer would remain open for acceptance. These purchases may occur either in the open market at prevailing prices or in private transactions at negotiated prices. Any information about such purchases or arrangements to purchase will be disclosed as required in the United Kingdom, will be reported to a Regulatory Information Service and will be available on the London Stock Exchange website at www.londonstockexchange.com.

Neither the Acquisition nor this announcement have been approved or disapproved by the US Securities and Exchange Commission, any state securities commission in the United States or any other US regulatory authority, nor have such authorities approved or disapproved or passed judgement upon the fairness or the merits of the Acquisition, or determined if the information contained in this announcement is adequate, accurate or complete. Any representation to the contrary is a criminal offence in the United States.

Forward-Looking Statements

This announcement (including any information that is incorporated by reference into this announcement) contains statements about the Wider RGL Group and the Wider Rotala Group that are or may be forward-looking statements which are prospective in nature. All statements other than statements of historical facts may be forward-looking statements. Often, but not always, forward-looking statements can be identified by the use of forward-looking words such as "targets", "plans", "believes", "expects", "aims", "intends", "will", "should", "could", "would", "may", "anticipates", "estimates", "synergy", "cost-saving", "projects", "goal" or "strategy" or, words or terms of similar substance or the negative thereof. Forward-looking statements may include statements relating to the following: (i) future capital expenditures, expenses, revenues, earnings, synergies, economic performance, indebtedness, financial condition, dividend policy, losses and future prospects; (ii) business and management strategies and the expansion and growth of the operations of the Wider RGL Group or the Wider Rotala Group and potential synergies resulting from the Acquisition; and (iii) the effects of government regulation on the businesses of the Wider RGL Group or the Wider Rotala Group.

These forward-looking statements are not guarantees of future performance and speak only at the date of this announcement. Such forward-looking statements involve known and unknown risks and uncertainties that could significantly affect expected results and are based on certain key assumptions. Many factors could cause actual results to differ materially from those projected or implied in any forward-looking statements. Due to such uncertainties and risks, readers are cautioned not to place undue reliance on such forward-looking statements, which speak only as of the date of this announcement. All subsequent oral or written forward-looking statements attributable to the Wider RGL Group or the Wider Rotala Group or any of their respective members, directors, officers or employees or any persons acting on their behalf are expressly qualified in their entirety by the cautionary statement above. RGL and Rotala disclaim any obligation to update any forward-looking or other statements contained in this announcement, except as required by applicable law.

No Profit Forecasts or Estimates

No statement in this announcement is intended as a profit forecast or estimate for any period and no statement in this announcement should be interpreted to mean that earnings or earnings per share for Rotala or RGL for the current or future financial years would necessarily match or exceed the historical published earnings or earnings per share for Rotala or RGL.

Publication on Website and availability of Hard Copies

Pursuant to Rule 26.1 of the Code, a copy of this announcement will be available free of charge (subject to any applicable restrictions with respect to persons resident in Restricted Jurisdictions) on Rotala's website (www.rotalaplc.com/our-investors/recommended-offer-for-the-company), by no later than 12 noon on 18 January 2024, the Business Day following this announcement. The Panel have consented to the sole use of this website in accordance with Rule 26 of the Takeover Code.

Neither the content of this website nor the content of any other website accessible from hyperlinks on any such website is incorporated into, or forms part of, this announcement.

Rotala Shareholders, persons with information rights and participants in the Rotala Share Scheme may request a hard copy of this announcement (and any information incorporated by reference in this announcement), free of charge, by contacting Neville Registrars during business hours on +44 (0)121 585 1131 or by submitting a request in writing to Neville Registrars, Neville House, Steelpark Road, Halesowen B62 8HD. Calls are charged at the standard geographic rate and will vary by provider. Calls outside the United Kingdom will be charged at the applicable international rate. Lines will be open between 9:00 a.m. to 5:00 p.m., Monday to Friday excluding public holidays in England and Wales. Unless Rotala Shareholders make such a request, a hard copy of this Announcement and any such information incorporated by reference in it will not be sent to Rotala Shareholders. Rotala Shareholders may also request that all future documents, announcements and information to be sent to them in relation to the Acquisition be in hard copy form.

If Rotala Shareholders are in any doubt about the contents of this Announcement or what action they should take, they are recommended to seek their own personal financial, tax and legal advice immediately from their stockbroker, bank manager, solicitor, accountant or other independent financial adviser duly authorised under the Financial Services and Markets Act 2000 (as amended) if they are resident in the United Kingdom or, if not, from another appropriately authorised independent financial adviser in the relevant jurisdiction.