Net Asset Value(s)

Invesco Asset Management Limited                        

HEADLINE: Net Asset Values

It is announced that at the close of business on 14-Jun-10, 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   1126.60               1138.08            
Trust plc                  Par                                              
                                                                            
                         Debt at   1107.61               1119.08            
                          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.


15 June 2010