United Utilities Group PlcLSE: UU.

Block listing Interim Review

UNITED UTILITIES GROUP PLC

Date: 31 July 2025

LEI 2138002IEYQAOC88ZJ59

BLOCK LISTING SIX MONTHLY RETURN

(Note: Italicised terms have the same meaning as given in the UK Listing Rules.)

Name of applicant:

UNITED UTILITIES GROUP PLC

Name of scheme:

Long Term Plan 2013

Period of return:

From:

01/02/2025

To:

31/07/2025

Balance of unallotted securities under scheme(s) from previous return:

9,492,815

Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):

nil

Less:  Number of securities issued/allotted under scheme(s) during period (see UKLR 20.6.7G):

nil

Equals:  Balance under scheme(s) not yet issued/allotted at end of period:

9,492,815

Name of contact:

Jane Gilmore

Telephone number of contact:

07717 702375