Morgan Advanced Materials Regulatory News (MGAM)

1 October 2025

Morgan Advanced Materials PLC (the "Company")

Voting Rights and Capital

The Company announces, in compliance with its obligations under Rules 5.6.1R and 5.6.2G of the FCA's Disclosure Guidance and Transparency Rules, that as at 30 September 2025, the Company's share capital consisted of:

· 278,613,418 Ordinary shares of 25 pence each, with equal voting rights; and

· 437,281 Cumulative Preference shares of £1.00 each, which do not carry voting rights, save in specified limited circumstances.

The Company does not hold any shares in Treasury.

Since the commencement of the share buyback programme announced on 5 November 2024, the Company has purchased (and subsequently cancelled) 6,756,570 Ordinary shares.

The figure of 278,613,418 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company's shares under the Disclosure Guidance and Transparency Rules.

Contact:

Win Chime, Group Company Secretary

Morgan Advanced Materials plc

company.secretariat@morganplc.com

The Company's LEI code is I4K14LL95N2PHDL7EG85.