Holding(s) in Company

Pennon Group PLC
22 February 2006

PENNON GROUP PLC

FOR IMMEDIATE RELEASE

HOLDING IN COMPANY

Pennon Group Plc has received notification (by fax dated 22 February 2006) that
Zurich Financial Services and its Group holds an interest in 4,997,626 Ordinary
Shares of 1221/10p each in the Company.

22 February 2006

www.pennon-group.co.uk


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