Annual Financial Report

10 June 2026

Johnson Matthey Plc

(the "Company")

Annual Report and Accounts 2026

The Company has today published its Annual Report and Accounts 2026 ("the Annual Report") and Notice of Annual General Meeting ("the Notice"). Both documents are available to view and download from the Company's website at https://matthey.com/investors

In accordance with Listing Rule 6.4.1 of the UK Financial Conduct Authority (FCA), a copy of the Annual Report (which will be available in unedited full text and structured electronic format) and the Notice, together with the Form of Proxy for the Company's Annual General Meeting, have been submitted to the Financial Conduct Authority and will shortly be available for inspection at the National Storage Mechanism (NSM) at  https://data.fca.org.uk/#/nsm/nationalstoragemechanism

The Annual General Meeting of the Company will take place at 11.00 am on Thursday 16 July 2026 at Herbert Smith Freehills Kramer, Exchange House, Primrose Street, London EC2A 2EG. A live webcast and telephone conference will also be available and details of how to join are contained in the Notice.

For the purposes of complying with the Financial Conduct Authority's Disclosure Guidance and Transparency Rules ("DTRs") and the requirements imposed on issuers through the DTRs, information required to be communicated with the media in unedited full text is included in the Annual Report.

This announcement is made in accordance with DTR 6.3.5R(1A).

Johnson Matthey Plc is listed on the London Stock Exchange (JMAT)

Registered in England & Wales number: 00033774Legal Entity Identifier number: 2138001AVBSD1HSC6Z10