Blocklisting - Interim Review

BLOCK LISTING SIX MONTHLY RETURN                        

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

To: The FSA

Date: 2 May 2012

Name of applicant:                     BlackRock Commodities Income Investment 
                                       Trust plc                               
                                                                               
Name of scheme:                        General purpose block listing scheme    
                                                                               
Period of return:            From:     1 November 2011 To:    2 May 2012       
                                                                               
Balance under scheme from previous     6,850,000 ordinary shares of 1p each    
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   2,050,000 ordinary shares of 1p each    
under scheme during period:                                                    
                                                                               
Balance under scheme not yet issued/   4,800,000 ordinary shares of 1p each    
allotted at end of period                                                      
                                                                               
Number and class of securities         7,450,000 ordinary shares of 1p each on 
originally listed and the date of      2 May 2006                              
admission                                                                      
                                                                               
Total number of securities in issue at 92,558,000                              
the end of the period                                                          

Name of contact:                        Mrs K V Higgins                        
                                                                               
Address of contact:                     12 Throgmorton Avenue, London EC2N 2DL 
                                                                               
Telephone number of contact:            0207 743 1089                          

SIGNED BY ____Mrs K V Higgins__________________________________________

company secretary
for and on behalf of BlackRock Commodities Income Investment Trust plc

____Mrs K V Higgins___________________________________________

Name of applicant

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