Change of Name and Ticker Code

1 December 2025

ProService Building Services Marketplace plc

(formerly HSS Hire Group plc)

("ProService" the "Company" or the "Group")

Change of Name and Ticker Code

Further to the Company's announcement on 17 November 2025, the Company wishes to confirm the following:

(i)         The change of name from HSS Hire Group plc to ProService Building Services Marketplace plc was effective on 28 November 2025; and

(ii)        The Company's tradeable instrument display mnemonic on the London Stock Exchange changed from HSS to PRO before the start of trading today.

Shareholders should note that their shareholdings will be unaffected by the change of name. Existing share certificates should be retained as they will remain valid for all purposes and no new share certificates will be issued.

The Company's investor relations website www.hsshiregroup.com will be changing shortly and a further update will be provided in due course

For further information, please contact: