Net Asset Value(s)

INVESCO Asset Management Limited                        

HEADLINE: Net Asset Values

It is announced that at the close of business on 1 June 2007 the unaudited net
asset values per share (AIC basis) of the following investment trust companies
managed by INVESCO Asset Management Limited are:-

                                            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 plc   Debt at Par   1387.21       -   1398.45       -
- see Note 3                                                                   
                               Debt at Fair   1348.06           1359.30        
                                      Value                                    
                                                                               
                                                      

All the above NAVs have been calculated using the fair value (bid) prices for
the underlying investments.

Note:

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

4 June 2007