Notifiable Interest

IPSA, the independent power plant developer with operations in southern Africa, which is quoted on AIM and has a secondary listing on ALTx, announces that it received notification on 30 April 2007 that on 26 April 2007 UBS Investment Bank ("UBS"), acting through its controlled entity UBS AG London Branch, had an interest in 4,635,776 ordinary shares of 2p each in the Company, representing 6.1% of the issued share capital of the Company.

On 4 April 2007 the Company announced that UBS, acting through its controlled entity UBS AG London Branch, had an interest in 4,458,776 ordinary shares of 2p each in the Company, representing 5.9% of the issued share capital of the Company.

For further information please contact:
Peter Earl, CEO, IPSA Group PLC 020 7793 7676