Net Asset Value(s)

Invesco Asset Management Limited                        

HEADLINE: Net Asset Values

It is announced that at the close of business on 6 March 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   1149.49       -   1169.95       -
- see Note 3                                                                   
                               Debt at Fair   1118.71           1139.17        
                                      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.
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