Change of Adviser

Avacta Group plc

Appointment of Broker and Appointment of Nominated Adviser

Avacta Group plc ("Avacta" or the "Company"), which provides innovative, high
value proprietary technologies and services to the pharmaceutical and
diagnostics markets, is pleased to announce the appointment of XCAP Securities
Limited as broker and the appointment of Grant Thornton Corporate Finance as
Nominated Adviser (NOMAD) with immediate effect.

Alastair Smith, CEO, Avacta, commented:

"Having now entered the commercialisation phase of our business plan through
the launch of our high value product, OPTIM, continued growth of our analytical
and diagnostic services businesses and through the launch of MIDAS which we
anticipate will be later this year, we feel the time is right to strengthen our
Corporate Finance and broking team. XCAP impressed the board with its
innovative approach and the diverse skill sets that it can offer us. Grant
Thornton Corporate Finance is well known for its high quality advice and
consistent delivery and we look forward to working with them and XCAP during
this time of transition for our business."

                                                                  1st June 2010

Enquiries:

Avacta Group plc                        Tel: [phone]                     
                                                                               
Alastair Smith, Chief Executive Officer                                        
                                                                               
Tim Sykes, Chief Financial Officer                                             
                                                                               
Haggie Financial LLP                    Tel: [phone]                     
                                                                               
Nicholas Nelson / Henny Breakwell       [e-mail]           
                                                                               
Grant Thornton Corporate Finance        Tel: [phone]                     
                                                                               
Phillip Secret / Colin Aaronson                                                
                                                                               
XCAP Securities Limited                 Tel: [phone]                     
                                                                               
John Grant / David Newton