Pennon Group PlcLSE: PNN

Ofwat investigation into sewage treatment works

· Issued by Pennon Group Plc

PENNON GROUP PLC

28 June 2022

Ofwat investigation into sewage treatment works

As part of its ongoing investigation into how water and wastewater companies manage their wastewater treatment works, Ofwat has today announced that South West Water will now be included alongside the five companies which received formal notices in March 2022.

We will continue to work openly and constructively with Ofwat to comply with the formal notice issued to South West Water as part of this ongoing investigation.

For further information, please contact:

Pennon Group plc

+44 (0) 1392 443 168

Paul Boote

Group Finance Director

Jennifer Cooke

Head of Investor Relations

Media Enquiries - FGS Global

+44 (0) 20 7251 3801

James Murgatroyd

Harry Worthington