Holding(s) in Company

TR-1  NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:

Avacta Group PLC

2. Reason for the notification                                  State          
                                                                Yes/No         
                                                                               
An acquisition or disposal of voting rights                      YES           
                                                                               
An acquisition or disposal of financial instruments               NO           
which may result in the acquisition of shares already                          
issued to which voting rights are attached                                     
                                                                               
An event changing the breakdown of voting rights                  NO           
                                                                               
Other (please specify):                                           NO           

3. Full name of person(s) subject to the notification       Universities       
obligation (iii):                                       Superannuation Scheme  
                                                               Limited         
                                                                               
4. Full name of shareholder(s) (if different from 3.)                          
(iv):                                                                          
                                                                               
5. Date of the transaction (and date on which the            04/04/2007        
threshold is crossed or reached if different) (v):                             
                                                                               
6. Date on which issuer notified:                            10/04/2007        
                                                                               
7. Threshold(s) that is/are crossed or reached:                  3%            
                                                                               
8. Notified details:                                                           

A: Voting rights attached to shares

 Class/type of     Situation        Resulting situation after the triggering    
    shares        previous to                   transaction (vii)               
  if possible    the Triggering                                                 
using the ISIN  transaction (vi)                                                
     CODE                                                                       
                                                                                
                Number   Number    Number    Number of voting     % of voting   
                  of       of        of         rights (ix)          rights     
                Shares   Voting    shares                                       
                         Rights                                                 
                         (viii)                                                 
                                                                                
                                   Direct     Direct   Indirect Direct  Indirect
                                               (x)       (xi)                   
                                                                                
 GB0033519546      0       0     28,000,000 28,000,000            3.6           
                                                                                

B: Financial Instruments

Resulting situation after the triggering transaction (xii)

   Type of     Expiration       Exercise/        Number of voting       % of   
  financial    date (xiii)      Conversion      rights that may be     voting  
 instrument                 Period/ Date (xiv)    acquired if the      rights  
                                                    instrument                 
                                                   is exercised/               
                                                     converted                 
                                                                               

Total (A+B)                                                                    
                                                                               
Number of voting rights                 % of voting rights                     
                                                                               
28,000,000                              3.6                                    

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable (xv):



Proxy Voting:


10. Name of the proxy holder:                                                  
                                                                               
11. Number of voting rights proxy holder will cease to hold:                   
                                                                               
12. Date on which proxy holder will cease to hold voting rights:                                                                        
13. Additional information:                                                    
                                                                               
14. Contact name:                                             Philip Brayne    
                                                                               
15. Contact telephone number:                                 0151 227 4711