Holding(s) in Company

Pennon Group PLC
31 July 2006


PENNON GROUP PLC


FOR IMMEDIATE RELEASE


HOLDING IN COMPANY


Pennon Group Plc has received notification (by letter dated 28 July 2006) that
HSBC Bank plc held 4,090,026 Ordinary shares of £1221/10p each in Pennon Group
Plc at the close of business on 27 July 2006, of which 20,908 shares were of a
kind described in Section 208(5) of the Companies Act 1985.



31 July 2006

www.pennon-group.co.uk


End transmission


                      This information is provided by RNS
            The company news service from the London Stock Exchange