Net Asset Value(s)

INVESCO Asset Management Limited                        

HEADLINE: Net Asset Value

It is announced that at the close of business 01 March 2006, 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 plc   Debt at Par   1172.99       -   1184.74       -
Note 3                                                                         
                               Debt at Fair   1109.08           1120.83        
                                      Value                                    
                                                                               
                                   

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

Note:

1. For these Companies the fair value of debt is not materially different from
the carrying value.

2. No cum income NAV is published for these Companies.

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

02 March 2006


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