Net Asset Value(s)

Net Asset Values

It is announced that at the close of business on 7 April 2011 the unaudited net
asset values per share (AIC basis) of the following investment trust companies
managed by Invesco Asset Management Limited are:-

Company                            NAVs with Debt at Par & Fair             
                                               Value                        
                                                                            
                                  Undiluted   Diluted  Undiluted   Diluted  
                                                                            
                                   Capital    Capital  Cum Income Cum Income
                                                                            
                                   (pence)    (pence)   (pence)    (pence)  
             
Keystone Investment  Debt at Par   1256.55              1275.70             
Trust plc                                                                   
                                                                            
                     Debt at Fair  1233.38              1252.54             
                        Value                                               
                                                                            
                        Note 2                                              
                                                                            

The above NAVs have been calculated using the fair value prices for the
underlying investments.

Notes:

2 The NAV above includes a provision for performance fee, where applicable.

8 April 2011

Invesco Asset Management Ltd

020 7065 4000