Exercise of Warrants

Avacta Group plc                                

                          ("Avacta" or "the Company")                          

                             Exercise of Warrants                              

The Company announces that on 4 January 2011 it received a notice of exercise
of warrants. The warrants were granted during May 2006, prior to the reversal
of Avacta Limited into the Company, then named Readybuy plc. The warrants have
been exercised in respect of 10,500,000 Ordinary shares of 0.1p par value (the
"New Ordinary shares") in the capital of the Company at an exercise price of £
0.0025. As a result, the Company now has 1,447,073,289 Ordinary shares in
issue.

Application is to be made for the New Ordinary shares, which will rank pari
passu with existing ordinary shares, to be admitted to trading on AIM, and
Admission is expected to take place on 11 January 2011.

Enquiries:

Avacta Group plc                                    Tel: [phone]      
                                                                            
Alastair Smith, Chief Executive Officer                                     
                                                                            
Tim Sykes, Chief Financial Officer                                          
                                                                            
Broker - XCAP Securities Plc                        Tel: [phone]      
                                                                            
John Grant/Karen Kelly/David Newton                                         
                                                                            
NOMAD - Grant Thornton Corporate Finance            Tel: [phone]      
                                                                            
Philip Secrett/Colin Aaronson/David Hignell                                 
                                                                            
PR - NexFin                                                                 
                                                                            
Nicholas Nelson                                     Tel: [phone]      
                                                                            
[e-mail]                                                   

The Company's website is www.avacta.com