17^th July 2025

Johnson Matthey Plc

(the Company)

Appointment of Andrew Cosslett as Chair

Johnson Matthey is pleased to announce the appointment of Andrew Cosslett as Non-Executive Chair of the Board, with effect from the conclusion of today's Annual General Meeting ("AGM"). Andrew will succeed Patrick Thomas who will step down from the Board at the end of the AGM.

Andrew is an experienced Chair with a strong track record in leading significant transformational and cultural change and delivering long-term shareholder value. He has held a number of senior executive and non-executive roles across a range of sectors, including consumer goods, hospitality and media. His extensive boardroom experience and commercial insight will support the Company's strategy as it becomes a highly focused and leaner business, driving sustainable cash generation.  

Andrew is currently Chair of ITV plc and previously served as Chair of Kingfisher plc and the Rugby Football Union (RFU). He is the former Chief Executive Officer of both InterContinental Hotels Group PLC and Fitness First. Andrew received a CBE for services to the RFU in the 2022 New Year's Honours List.

Patrick Thomas, retiring Chair commented: "Andrew is a proven leader with the ability to successfully guide complex organisations through change, and I am pleased to welcome him as my successor. I wish him and the Board every success in the years ahead."

Liam Condon, Chief Executive of Johnson Matthey said: "I am delighted to welcome Andrew to Johnson Matthey as Chair. He brings a wealth of experience and strategic perspectives with a clear focus on high performance, and I am confident he will provide strong leadership to the Board and valuable support to the executive team as we deliver the next phase of our strategy.

I would also like to thank Patrick for his leadership and guidance. His stewardship has played a key role in helping JM move forward with renewed energy and a clear direction."

Andrew Cosslett said: "Johnson Matthey is a business with a proud heritage.  I'm excited to join at such a pivotal time, with the sale of Catalyst Technologies to be completed and the business transitioning to focus on sustainable cash generation. I look forward to working with the team to deliver long-term value for all our stakeholders."

Upon joining the Board, Andrew will also become a member and Chair of the Nomination Committee and member of the Societal Value Committee.

Disclosures required pursuant to UKLR 6.4.8R of the Listing Rules of the Financial Conduct Authority (including directorships held in other publicly quoted companies at any time in the previous five years)

Andrew has been a director of ITV plc since June 2022.

From June 2017 until June 2024, Andrew was a director of Kingfisher plc.

There are no other matters that require disclosure under 6.4.8R of the UK Listing Rules.

ENDS

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

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