Issue of Equity

Avacta Group plc                                

                                Issue of Equity                                

Avacta Group plc (the "Company") announces that 1,758,419 ordinary shares of
0.1p each ("Ordinary Shares") have been issued as to 1,538,462 pursuant to
contractual obligations for services provided to the Company and as to 219,957
pursuant to the exercise of share options.

Application has been made for 1,758,419 new Ordinary Shares to be admitted to
trading on AIM and dealings are expected to commence on 29 October 2010.

The total number of Ordinary Shares in issue following the above issue will be
1,436,573,289.

26 October 2010

Enquiries:

Avacta Group plc                              Tel: [phone]             
                                                                             
Alastair Smith, Chief Executive Officer       www.avacta.com                 
                                                                             
Tim Sykes, Chief Financial Officer                                           
                                                                             
Broker                                        Tel: [phone]             
                                                                             
XCAP Securities Plc                           www.xcapgroup.com              
                                                                             
John Grant/Karen Kelly/David Newton           Tel: [phone]             
                                                                             
Nominated Adviser                             www.grantthornton.co.uk        
                                                                             
Grant Thornton Corporate Finance                                             
                                                                             
Colin Aaronson/David Hignell