United Utilities : Directorate declaration – appointment of Liam Butterworth, independent non-executive director with effect from 1 January 2022.

UNITED UTILITIES GROUP PLC (the Company)

7 December 2021

United Utilities appoints Independent Non-Executive Director

United Utilities Group PLC announces the appointment of Liam Butterworth as a non- executive director with effect from 1 January 2022. On appointment, Liam will become a member of the Nomination Committee and the Audit Committee.

United Utilities' Chairman, Sir David Higgins said: "As a serving CEO, Liam brings strong engineering and industrial technology experience to the board and his experience of managing performance will provide additional commercial focus as we embark on the 2025/30 regulatory price review process. Having grown up in the North West, he has a close affinity with our region and I am certain that Liam's career experience and skillsets will contribute to and enrich our board discussions."

Liam will also be appointed as a non-executive director of United Utilities Water Limited with effect from 1 January 2022.

There are no further details to disclose under paragraph 9.6.13 (1) to (6) of the Listing Rules in relation to Liam Butterworth.

	-0-
United Utilities contacts:
Simon Gardiner, Company Secretary	[phone]
Rob Lee, Head of Investor Relations	[phone]

LEI 2138002IEYQAOC88ZJ59

Classification - Directorate declaration

United Utilities Group's ordinary shares trade on the London Stock Exchange and its ADRs, each equal to two ordinary shares, trade over the counter under the Trading Symbol "UUGRY".