NED appointment and SID change

1 June 2026

TIDM: JSG

Johnson Service Group PLC

(the "Company" or "the Group" or "JSG")

Appointment of Independent Non-Executive Director

Change of Senior Independent Director

The Company confirms that, in accordance with the Board's succession plans and as previously announced on 3 March 2026:

· Lysanne Gray has today been appointed as an Independent Non-Executive Director of the Company and joins the Audit, Nomination and Remuneration Committees with immediate effect;

· Nicola Keach has today been appointed Senior Independent Director, succeeding Chris Girling, with immediate effect. Nicola has served as an Independent Non-Executive Director since 1 June 2022 and is a member of the Audit, Nomination and Remuneration Committees;

· Chris Girling will remain an Independent Non-Executive Director and continue as a member of the Audit, Nomination and Remuneration Committees until his retirement from the Board on 31 December 2026; and

· Lysanne Gray will succeed Chris Girling as Chair of the Audit Committee following the announcement of the Company's interim results for the six-month period ending 30 June 2026.

The disclosures required pursuant to UK Listing Rule 6.4.8R in respect of Lysanne Gray remain unchanged from those set out in the Company's announcement dated 3 March 2026. There is no further information to be disclosed in respect of Lysanne Gray pursuant to UK Listing Rule 6.4.8R (1) to (6), inclusive.

ENQUIRIES

LEI: 2138004WZUPWV53KWV11