Director/PDMR Shareholding

6 August 2010

                               Avacta Group plc                                

                          ("Avacta" or "the Company")                          

                          Director/PDMR Shareholding                           

The Company announces that yesterday Alastair Smith, Chief Executive Officer,
transferred 2,803,245 ordinary shares of 0.1p each ("Ordinary Shares") to his
Self Invested Pension Plan ("SIPP"). As a result of this transaction his
beneficial holding remains unchanged at 51,728,296 Ordinary Shares, which
represents approximately 3.61 % per cent. of the current issued share capital
of the Company.

For further information, please contact:

Avacta Group plc                              Tel: [phone]             
                                                                             
Alastair Smith, Chief Executive Officer       www.avacta.com                 
                                                                             
Tim Sykes, Chief Financial Officer                                           
                                                                             
Broker                                        Tel: [phone]             
                                                                             
XCAP Securities Limited                       www.xcapgroup.com              
                                                                             
John Grant/Karen Kelly/David Newton           Tel: [phone]             
                                                                             
Nominated Adviser                             www.grantthornton.co.uk        
                                                                             
Grant Thornton Corporate Finance                                             
                                                                             
Philip Secrett/Colin Aaronson                                                
                                                                             
Financial PR                                  Tel: [phone]             
                                                                             
Haggie Financial LLP                                                         
                                                                             
Nicholas Nelson/ Henny Breakwell              [e-mail]