Holding(s) in Company

20 December 2007

                                 PipeHawk Plc                                  

                         ("PipeHawk" or the "Company")                         

                              Notifiable interest                              

The Company received notification today that, following a purchase on 19
December 2007 of 60,000 ordinary shares in the Company, representing 0.22 per
cent. of the issued voting share capital of PipeHawk, Randal McDonnell,
non-executive director of the Company, holds 789,216 ordinary shares in the
Company, representing 2.93 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