Blocklisting - Interim Review

BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically.

To: The FSA

Date: 1 May 2009

Name of applicant:                     BlackRock Commodities Income Investment 
                                       Trust plc                               
                                                                               
Name of scheme:                        General Purpose Block Listing Scheme    
                                                                               
Period of return:            From:     2 November 2008 To:    1 May 2009       
                                                                               
Balance under scheme from previous     6,850,000 ordinary shares of 1p         
return:                                                                        
                                                                               
The amount by which the block scheme   n/a                                     
has been increased, if the scheme has                                          
been increased since the date of the                                           
last return:                                                                   
                                                                               
Number of securities issued/allotted   n/a                                     
under scheme during period:                                                    
                                                                               
Balance under scheme not yet issued/   6,850,000 ordinary shares of 1p         
allotted at end of period                                                      
                                                                               
Number and class of securities         7,450,000 ordinary shares of 1p on 2 May
originally listed and the date of      2006                                    
admission                                                                      
                                                                               
Total number of securities in issue at 75,600,000 (including 1,774,338 ordinary
the end of the period                  shares held in treasury)                

Name of contact:                        Mrs K V Higgins                        
                                                                               
Address of contact:                     33 King William Street, London EC4R 9AS
                                                                               
Telephone number of contact:            020 7743 1089                          

SIGNED BY ____K V Higgins ______________________________________________

Company Secretary

for and on behalf of BlackRock Commodities Income Investment Trust plc

__K V Higgins _____________________________________________

Name of applicant

If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.