Holding(s) in Company

1 April 2008

                                 PipeHawk Plc                                  

                         ("PipeHawk" or the "Company")                         

                              Notifiable interest                              

The Company received notification today that, following a purchase on 19 March
2008 of 261,000 ordinary shares in the Company, representing 0.97 per cent. of
the issued voting share capital of PipeHawk, Credit Agricole Cheuvreux
International Limited holds 1,133,000 ordinary shares in the Company,
representing 4.21 per cent. of the issued voting share capital of the Company.

PipeHawk Plc                                                       01420 590990
                                                                               
Gordon Watt (Chairman)                                                         
                                                                               
John East & Partners Limited                                      020 7628 2200
                                                                               
Simon Clements