Johnson Matthey Regulatory News (JMAT)

25th May 2023

Johnson Matthey Plc

(the Company)

Barbara Jeremiah to join Johnson Matthey as a Non-Executive Director

The Company is pleased to announce the appointment of Barbara Jeremiah as an independent Non-Executive Director. This appointment is with effect from 1st July 2023 and Barbara will also become a member of all four board committees.

Chris Mottershead will step down as Chair of the Remuneration Committee following the Company's Annual General Meeting in July 2023 ("AGM") and from the Board on 26th January 2024, following a nine-year tenure.

Barbara will become the Senior Independent Director, succeeding John O'Higgins who will become Chair of the Remuneration Committee. These changes will take effect from the end of our AGM.

Barbara brings strong leadership, deep understanding of metals and has extensive experience in North American markets. She is Chair of The Weir Group PLC and spent over 30 years at Alcoa Inc ("Alcoa"), a global aluminium producer where she held a number of roles. Most recently, she was Executive Vice President, Corporate Development, a position she held for ten years prior to her retirement in 2009, with responsibility for leading Alcoa's global merger, acquisition, divestiture and integration activities. Prior to this, Barbara was a practising lawyer in Alcoa's legal team.

Patrick Thomas, Chair of Johnson Matthey said:

"On behalf of the Board I would like to thank Chris for his valued contributions during his time with Johnson Matthey. In particular, his input as we look to do our part to enable the world transition to net zero has been invaluable, and I wish him well for the future. I'm very pleased to welcome Barbara Jeremiah who brings additional expertise to the Board, and will be especially valuable as we develop our business further in North America."

In accordance with obligations under Listing Rule 9.6.13R, Barbara currently holds, or has held the following directorships:

There is no other information required to be disclosed under Listing Rule 9.6.13R.

ENDS

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

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