April 9, 2024

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES OF AMERICA, CANADA, JAPAN OR AUSTRALIA OR ANY OTHER JURISDICTION IN WHICH IT WOULD BE UNLAWFUL TO DO SO

SYNTHOMER PLC
PROPOSED OFFERING OF SENIOR NOTES

Synthomer plc ("Synthomer") today announced that it has launched an offering (the "Offering") of €350 million in aggregate principal amount of unsecured senior notes due 2029 (the "Notes"). The Notes will be unconditionally guaranteed by certain of Synthomer's subsidiaries. Synthomer intends to use the proceeds from this Offering, together with cash on balance sheet, to (i) repurchase or redeem certain of its existing 3⅞% senior notes due 2025 (the "Existing Notes") and (ii) pay certain costs, expenses and fees relating to the Offering.

In addition, concurrently with the Offering, the Issuer is making an offer to eligible holders of the Existing Notes to tender their Existing Notes for repurchase by the Issuer (the "Tender Offer"). The settlement of the Tender Offer is conditioned upon, among other things, the consummation of the Offering. It is expected that the Offering and the Tender Offer will settle simultaneously on the issue date of the Notes.

Cautionary Statement

The Offering is being made by means of an offering memorandum. This announcement does not constitute an offer to sell or the solicitation of an offer to buy the Notes or any other security and shall not constitute an offer, solicitation or sale in the United States or in any jurisdiction in which, or to any persons to whom, such offering, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any jurisdiction.

The Notes have not been, and will not be, registered under the U.S. Securities Act of 1933, as amended (the "Securities Act") or the securities laws of any state or other jurisdiction of the United States, and may not be offered or sold within the United States, or to, or for the account or benefit of, U.S. persons, except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and applicable state or local securities laws. Accordingly, the Notes are being offered and sold in the United States only to qualified institutional buyers in accordance with Rule 144A under the Securities Act and to non-U.S. persons outside the United States in accordance with Regulation S under the Securities Act.

Promotion of the Notes in the United Kingdom is restricted by the Financial Services and Markets Act 2000 (the "FSMA"), and accordingly, the Notes are not being promoted to the general public in the United Kingdom. This announcement is only addressed to and directed at persons who (i) are outside the United Kingdom, (ii) have professional experience in matters relating to investments (being investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the "Financial Promotion Order")), (iii) fall within Article 49(2)(a) to (d) ("high net worth companies, unincorporated associations, etc.") of the Financial Promotion Order, or (iv) to the extent that doing so does not prejudice the lawful distribution of the announcement to the foregoing, are persons to whom an invitation or inducement to engage in investment activity (within the meaning of section 21 of the FSMA) in connection with the issue or sale of any Notes may otherwise lawfully be communicated or caused to be communicated (all such persons together being referred to as "relevant persons"). The Notes will only be available to relevant persons and this announcement must not be acted on or relied on by anyone who is not a relevant person. No key information document required by Regulation (EU) No 1286/2014 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018 (the "EUWA") (the "UK PRIIPs Regulation") for offering or selling the Notes or otherwise making them available to retail investors in the UK has been prepared and, therefore, offering or selling the Notes or otherwise making them available to any retail investor in the UK may be unlawful under the UK PRIIPs Regulation. Any offer of the Notes in the UK will be made pursuant to an exemption under Regulation (EU) 2017/1129 as it forms part of domestic law by virtue of the EUWA from a requirement to publish a prospectus for offers of securities.

This announcement does not constitute and shall not, in any circumstances, constitute a public offering nor an invitation to the public in connection with any offer within the meaning of the Regulation (EU) 2017/1129 (as amended), and any relevant implementing measure in the relevant Member State of the European Economic Area (the "Prospectus Regulation"). The offer and sale of the Notes will be made pursuant to an exemption under the Prospectus Directive, as implemented in Member States of the European Economic Area, from the requirement to produce a prospectus for offers of securities.

Manufacturer target market (MIFID II product governance) is eligible counterparties and professional clients only (all distribution channels). No PRIIPs key information document (KID) has been prepared as not available to retail investors in EEA.

This press release may include "forward looking statements" within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended. These forward looking statements can be identified by the use of forward looking terminology, including the terms "believes," "estimates," "anticipates," "expects," "intends," "may," "will" or "should" or, in each case, their negative, or other variations or comparable terminology. These forward looking statements include all matters that are not historical facts and include statements regarding Synthomer or its affiliates' intentions, beliefs or current expectations concerning, among other things, the Offering.

By their nature, forward looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. Readers are cautioned that forward looking statements are not guarantees of future performance and that Synthomer and its affiliates' actual results of operations, financial condition and liquidity, and the development of the industry in which they operate may differ materially from those made in or suggested by the forward looking statements contained in this press release. In addition, even if Synthomer or its affiliates' results of operations, financial condition and liquidity, and the development of the industry in which the Synthomer operates are consistent with the forward looking statements contained in this press release, those results or developments may not be indicative of results or developments in subsequent periods. Given these risks and uncertainties, you should not rely on forward looking statements as a prediction of actual results.

Statements of intent in this press release shall not constitute a notice of redemption under the indenture governing Synthomer's 3⅞% senior notes due 2025. Any such notice, if made, will only be made in accordance with the provisions of the relevant indenture.