15^th June 2022

Johnson Matthey Plc

(the "Company")

Annual Report and Accounts 2022

The Company announces that it has today published the Annual Report and Accounts 2022 ("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 9.6.1, 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 National Storage Mechanism and will shortly be available for inspection at https://data.fca.org.uk/#/nsm/nationalstoragemechanism

The Annual General Meeting of the Company will be held at 11.00 am on Thursday 21st July 2022 at Herbert Smith Freehills, 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.

ENDS

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

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