Net Asset Value(s)

Invesco Asset Management Limited                        

HEADLINE: Net Asset Values

It is announced that at the close of business on 15 April 2008 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   1163.90        -   1185.17       -
- see Note 3                                                                   
                              Debt at Fair   1134.96            1156.23        
                                     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.

16 April 2008