Director Declaration

Tristel PLC
03 August 2007

                          Tristel PLC (the 'Company')



                               Directors Dealings



The Company was informed on 3 August 2007 that on that day Paul Swinney, Chief
Executive of the Company, sold 50,000 Ordinary Shares of 1p each in the Company
('Shares') at a price of 55p per share.  This was in order to provide funds to
partially settle a tax liability that Mr Swinney incurred in June 2005 in
relation to the Admission of the Company to AIM.  Following this transaction, Mr
Swinney holds 2,494,969 Ordinary Shares, representing 10.21% of the total voting
rights.



Contacts:


Tristel plc                             Parkgreen Communications Ltd
Paul Swinney                            Paul McManus
Chief Executive                         Tel: [phone]
Tel: [phone]                      Mob: [phone]
                                        Email: [e-mail]


Teather & Greenwood Limited
Nomad & Broker
Sindre Ottesen/Simon Brown
Tel: [phone]






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