Additional Listing

PENNON GROUP PLC

FOR IMMEDIATE RELEASE

BLOCK LISTING

Application has been made to the UK Listing Authority for the admission of 517,075 ordinary shares of 40.7 pence each in Pennon Group plc to the Official List and to the London Stock Exchange for these securities to be admitted to trading as a block listing.

The application is being made in respect of the shares that may fall to be issued pursuant to the exercise of options under Pennon Group All-Employee Sharesave Scheme. Admission is expected to be effective from 14 August 2017.

9 August 2017

www.pennon-group.co.uk