PENNON GROUP PLC

FOR IMMEDIATE RELEASE

VOTING RIGHTS AND CAPITAL

In conformity with Disclosure and Transparency Rule 5.6.1(1), Pennon Group Plc hereby notifies the market that at 31December 2013, the issued share capital of the Company was 371,834,966 ordinary shares of nominal value 40.7p each with voting rights, although 1,304,611 of these shares had no exercisable voting rights as they were held in treasury. Therefore, whilst currently the total number of voting rights in Pennon Group Plc is 371,834,966 the figure 370,530,355 (the Company's issued share capital less the shares held in treasury) is the figure that may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Pennon Group Plc under the FSA's Disclosure and Transparency Rules.

In conformity with Disclosure and Transparency Rule 5.6.1(2), Pennon Group Plc hereby notifies the market that at 31 December 2013, as detailed in the paragraph above, the total number of voting rights attaching to shares of the Company which are held by it in treasury is 1,304,611.

2 January 2014

www.pennon-group.co.uk


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