Extraordinary General Meeting of Rieter Holding Ltd.

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Shareholders approve all the proposals of the Board of Directors:

• Ordinary capital reduction through a nominal value reduction on condition of simultaneous capital increase in two tranches
• Ordinary capital increase in two tranches
  • Tranche A (rights issue)
  • Tranche B (private placement)
• Reintroduction of the capital band

At today’s Extraordinary General Meeting of Rieter Holding Ltd., the shareholders approved all proposals put forward by the Board of Directors. The shareholders approved the ordinary capital reduction through nominal value reduction and the capital increase as part of the rights issue and the private placement. At the same time, the shareholders agreed to the Board of Directors’ proposal to reintroduce the capital band and amend the Company’s Articles of Association accordingly.

Rieter Holding Ltd. already announced the details and conditions of the capital increase in tranches A and B earlier this morning: www.rieter.com/media/media-releases

The Extraordinary General Meeting was attended by 176 shareholders or their representatives as well as the independent proxy. They accounted for 2 902 588 votes, representing 62.1% of the 4 672 363 shares issued.

About Rieter
Rieter is a leading global supplier for manufacturing yarn from staple fibers in spinning mills. Based in Winterthur (Switzerland), the company develops and manufactures machinery, systems and components used to convert natural and man-made fibers and their blends into yarns in the most cost-efficient manner. Cutting-edge spinning technology from Rieter contributes to sustainability in the textile value chain by minimizing the use of resources. Rieter has been in business for 230 years, has 18 production locations in ten countries and employs a global workforce of around 4 560, about 15% of whom are based in Switzerland. Rieter is listed on the SIX Swiss Exchange under ticker symbol RIEN. www.rieter.com.

Disclaimer
All statements in this report which do not refer to historical facts are forecasts which offer no guarantee whatsoever with respect to future performance; they embody risks and uncertainties which include – but are not confined to – future global economic conditions, exchange rates, legal provisions, market conditions, activities by competitors and other factors which are outside the company’s control.

This document is not an offer to sell or a solicitation of offers to purchase or subscribe for any securities. This document is not a prospectus within the meaning of the Swiss Financial Services Act and not a prospectus under any other applicable laws. Copies of this document may not be sent to, distributed in or sent from jurisdictions in which this is barred or prohibited by law. The information contained herein shall not constitute an offer to sell or the solicitation of an offer to buy any securities, in any jurisdiction in which such offer or solicitation would be unlawful prior to registration, exemption from registration or qualification under the securities laws of any jurisdiction. The offer and listing of any securities will be made solely by means of, and on the basis of, a prospectus, which is to be approved by the competent review body and published.

A decision to invest in securities of Rieter Holding AG should be based exclusively on the prospectus published by Rieter Holding AG (the “Company”) for such purpose. Copies of such prospectus (and any supplements thereto) are expected to be available as of September 18, 2025 after close of trading free of charge from UBS AG, Swiss Prospectus Switzerland, P.O. Box, CH-8098 Zurich, Switzerland (email: swiss-prospectus(at)ubs.com), and from Rieter Holding AG, Klosterstrasse 20, 8406 Winterthur, Switzerland, (email: investor(at)rieter.com), during regular business hours.

This document is not for publication or distribution in the United States of America (including its territories and possessions, any State of the United States and the District of Columbia), Canada, Japan or Australia or any other jurisdiction into which the same would be unlawful. This document does not constitute an offer or invitation to subscribe for or purchase any securities in such countries or in any other jurisdiction into which the same would be unlawful. In particular, the document and the information contained herein should not be distributed or otherwise transmitted into the United States of America or to publications with a general circulation in the United States of America. The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the “Securities Act”), or the laws of any state and may not be offered or sold in the United States of America absent registration under or an exemption from registration under the Securities Act. There will be no public offering of the securities in the United States of America.

The information contained herein does not constitute an offer of securities to the public in the United Kingdom. No prospectus offering securities to the public will be published in the United Kingdom. In the United Kingdom this document is only directed at persons who (i) are qualified investors and who are also (ii) investment professionals falling within article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the “FSMA Order”); (iii) persons falling within Articles 49(2)(a) to (d), “high net worth companies, unincorporated associations, etc.” of the FSMA Order and (iv) persons to whom an invitation or inducement to engage in investment activity within the meaning of Section 21 of the Financial Services and Markets Act 2000 may otherwise be lawfully communicated or caused to be communicated (all such persons together being referred to as “relevant persons”). The securities are only available to relevant persons, and any invitation, offer or agreement to subscribe, purchase or otherwise acquire such securities will also be engaged in only with relevant persons. Any person who is not a relevant person should not act or rely on this document or any of its contents.

In any member state of the European Economic Area (each a “Relevant State”) this document is only addressed to qualified investors in that Relevant State within the meaning of the Prospectus Regulation.

This publication contains specific forward-looking statements, e.g. statements including terms like “believe”, “assume”, “expect”, “forecast”, “project”, “may”, “could”, “might”, “will” or similar expressions. Such forward-looking statements are subject to known and unknown risks, uncertainties and other factors which may result in a substantial divergence between the actual results, financial situation, development or performance of Rieter Holding AG and those explicitly or implicitly presumed in these statements. Against the background of these uncertainties, readers should not rely on forward-looking statements. Rieter Holding AG assumes no responsibility to update forward-looking statements or to adapt them to future events or developments.

Except as required by applicable law, Rieter Holding AG has no intention or obligation to update, keep updated or revise this publication or any parts thereof (including any forward-looking statement) following the date hereof.

UBS AG (the “Sole Global Coordinator”) or any of their respective subsidiary undertakings, affiliates or any of their respective directors, officers, employees, advisers, agents, alliance partners or any other entity or person accepts any responsibility or liability whatsoever for, or makes any representation, warranty or undertaking, express or implied, as to the truth, accuracy, completeness or fairness of the information or opinions in this announcement (or whether any information has been omitted from the announcement) or any other information relating to the group, its subsidiaries or associated companies, whether written, oral or in a visual or electronic form, and howsoever transmitted or made available or for any loss howsoever arising from any use of this announcement or its contents or otherwise arising in connection therewith. Accordingly, the Sole Global Coordinator and the other foregoing persons disclaim, to the fullest extent permitted by applicable law, all and any liability, whether arising in tort or contract or that they might otherwise be found to have in respect of this announcement and/or any such statement.