THE INFORMATION CONTAINED WITHIN THIS ANNOUNCEMENT IS DEEMED TO CONSTITUTE INSIDE INFORMATION AS STIPULATED UNDER THE MARKET ABUSE REGULATION (EU) NO. 596/2014 AS IT FORMS PART OF UK DOMESTIC LAW BY VIRTUE OF THE EUROPEAN UNION (WITHDRAWAL) ACT 2018, AS AMENDED BY THE MARKET ABUSE (AMENDMENT) (EU EXIT) REGULATIONS 2019 (AS FURTHER AMENDED, VARIED OR SUBSTITUTED FROM TIME TO TIME AS A MATTER OF UK LAW). UPON THE PUBLICATION OF THIS ANNOUNCEMENT VIA THE REGULATORY INFORMATION SERVICE, THIS INSIDE INFORMATION IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN.

9 December 2025

Secondary Sale in Accsys Technologies PLC Shares

Ineos Acetyls Investments Limited (the "Seller"), announces it has sold its entire shareholding of 7,500,000 ordinary shares (the "Sale Shares") in the capital of Accsys Technologies PLC ("Accsys" or the "Company") (the "Transaction"). The Transaction was effected by way of an off-market transaction. The Seller owned approximately 3.1% of the Company's issued share capital prior to the Transaction.

A total of 7,500,000 ordinary shares, representing approximately 3.1% of the Company's issued share capital, have been sold at a price of 61 pence per share.

ABN AMRO Bank N.V. ("ABN AMRO") and Panmure Liberum Limited ("Panmure Liberum"), acted as brokers in connection with the Transaction.

Enquiries:

ABN AMRO (Amsterdam) - Broker

Julie Wakkie, Diederik Berend                                                                          +31 (0) 20 344 2000

Panmure Liberum (London) - Nomad and Broker

Corporate Finance:

Nicholas How (NOMAD), Will King                                                                   +44 (0) 20 3100 2000

Corporate Broking:

Sam Elder

Important Information

Panmure Liberum, who is authorised and regulated by the Financial Conduct Authority in the United Kingdom, and ABN AMRO Bank N.V. ("ABN AMRO"), who is authorised and regulated by the Financial Conduct Authority in the United Kingdom, and regulated by the European Central Bank, the Dutch Central Bank (De Nederlandsche Bank N.V.) and the Authority for Financial Markets (Autoriteit Financiële Markten) in the Netherlands, acted as brokers in connection with the Transaction (the "Brokers"). ABN AMRO acted only for the Seller and no-one else in connection with the Transaction.   It will not regard any other person as its client in relation to the Transaction and will not be responsible to anyone other than the Seller for providing the protections offered to its clients nor for providing advice in relation to the Transaction or any matters referred to in this announcement.

Neither the Seller nor the Brokers, nor any of their respective directors, shareholders, officers, employees, advisers or agents accepts any responsibility or liability whatsoever for or makes any representation or warranty, express or implied, as to the truth, accuracy or completeness of the information in this announcement (or whether any information has been omitted from the announcement).