Net Asset Value(s)

Release Text: 


                       Invesco Asset Management Limited                        

HEADLINE: Net Asset Values

It is announced that at the close of business on 23 May 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      Cum  
                                                         Income     Income

                                  (pence) (pence)        (pence)    (pence)

                                                                             
Keystone Investment  Debt at Par  1292.63                1320.76            
Trust plc                                                                    
                                                                             
                       Debt at    1273.02                1301.15            
                     Fair 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.

24 May 2011

Invesco Asset Management Ltd

020 7065 4000