1 August 2025

Johnson Service Group PLC

(the "Company")

Block Listing Application

Further to the Company's announcement earlier today that its ordinary shares of 10 pence each in the capital of the Company ("Shares") have been admitted to the Equity Shares (Commercial Companies) Category of the Official List of the Financial Conduct Authority ("FCA") and  to trading on the Main Market of the London Stock Exchange ("LSE"), the Company announces that an application has been made to the FCA and the LSE for a block admission of a total of 812,409 Shares (the "Block Application"). It is expected that the admission of Shares under the Block Application will become effective on 6 August 2025.

The Block Application is made in relation to the following blocks and will replace the previous AIM block admissions in respect of the same:

1.   480,787 Shares relating to The Johnson Service Group 2018 Long-Term Incentive Plan; The Johnson Service Group 2018 Long-Term Incentive Plan CSOP Section; and

2.   331,622 Shares relating to The Johnson Service Group 2018 Save As You Earn Plan.

Shares admitted under the Block Application will be used from time to time to satisfy awards granted and exercised under the above referenced Company employee share schemes.

Upon exercise, the Shares will be issued credited as fully paid and will rank pari passu in all respects with the existing issued Shares of the Company.