Additional Listing

22 September 2023

Synthomer plc (the "Company")

Listing Application

Application has been made to the FCA and the London Stock Exchange for admission to (i) the Official List and (ii) trading on the Main Market of the London Stock Exchange for 19 (nineteen) new ordinary shares of 10p each (the "Ordinary Shares") in the Company. It is expected that admission will become effective on 25 September 2023.

The 19 (nineteen) new Ordinary Shares have been allotted and issued solely to facilitate the share consolidation that forms part of the proposed capital reorganisation announced by the Company on 7 September 2023. They have been issued credited as fully paid and will rank pari passu in all effects with the existing Ordinary Shares of the Company.

Legal Entity Identifier (LEI): 213800EHT3TI1KPQQJ56. For immediate release.