The Cayman Islands Stock Exchange hereby admits the following securities to the official list:

Name of Issuer:                                             UK Power Networks Services Holdings Limited

Number and Description of Securities:

£51,000,000 9.95 per cent. Subordinated Notes due 2021

Type of issue:                                                Eurobond

From:                                                            12:45 p.m. on 30 June, 2011