Pennon Regulatory News (PNN)

PENNON GROUP PLC

Board Changes

Pennon Group plc (the "Company") announces, in accordance with Listing Rule 9.6.11, the following changes to the Company's Board.

Senior Independent Director

As previously announced at the Company's Annual General Meeting on 20 July 2023, Neil Cooper, current Senior Independent Director, will be stepping down from the Board, having served nine years with the Company and Iain Evans, Non-Executive Director, will succeed Neil as Senior Independent Director with effect from 1 September 2023.

Gill Rider, Chair said, "On behalf of the Board, I would like to thank Neil for his wise counsel, experience and all his work over the years and we wish him all the best for the future. I am also delighted that Iain will be succeeding Neil as Senior Independent Director. Iain brings considerable experience in the water business and is well equipped for this new role."

Audit Committee Chair

Following Neil Cooper's departure, Loraine Woodhouse, who joined the Board in December 2022, will become Chair of the Audit Committee with immediate effect. Loraine has extensive experience in financial roles and has the full support of the Board in her new role.

Andrew Garard

General Counsel and Company Secretary

1 September 2023