Net Asset Value(s)

INVESCO Asset Management Limited                        

HEADLINE: Net Asset Value

It is announced that at the close of business 1 August 2005, the unaudited net
asset value per share (AITC basis) of the following investment trust company
managed by INVESCO Asset Management Limited is:-

                                         NAVs with Debt at Par & Fair Value 
                                                                            
Company                                  Undiluted Diluted Undiluted Diluted
                                                                            
                                           Capital Capital       Cum     Cum
                                                                            
                                                              Income  Income
                                                                            
                                           (pence) (pence)   (pence) (pence)
                                                                            
                                                                      
Keystone Investment Trust    Debt at Par   1012.56       -   1023.59       -
plc - Note 3                                                                
                                 Debt at    959.54            970.58        
                              Fair Value                                    
                                                                            
Note:

3. The NAVs above include a provision for performance fee where applicable.