Annual Information Update

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST plc

ANNUAL INFORMATION UPDATE

Annual Information Update for the period 5 March 2011 up to and including 
1 March 2012.

Pursuant to the requirements of Prospectus Rule 5.2 the following summarises
the information that has been published or made available to the public by the
Company. Please note that some of this information may be out of date.

1. Announcements via a Regulatory Information Service (RIS):

    (RIS Announcements can be viewed at or downloaded via the internet
    from http://dev.investegate.co.uk using EPIC code BRCI.)          

1.1 Net Asset Values:

    As far as possible the Company has announced daily the net asset  
    value per share as at the close of the previous business day.     
 
1.2 Portfolio Update:
 
18 March 2011
15 April 2011
17 May 2011
16 June 2011
22 July 2011
15 August 2011
16 September 2011
19 October 2011
11 November 2011
15 December 2011
20 January 2012  
22 February 2012

1.3 Holdings in Company:

1 April 2011
12 April 2011
3 May 2011
1 June 2011
4 July 2011
1 August 2011
5 August 2011
15 August 2011
1 September 2011
29 September 2011
3 October 2011
10 October 2011
1 November 2011
1 December 2011
3 January 2012
9 January 2012
1 February 2012
1 March 2012

1.4 Total Voting Rights

1 April 2011
3 May 2011
1 June 2011
1 July 2011
1 August 2011
1 September 2011
3 October 2011
1 November 2011
1 December 2011
3 January 2012
1 February 2012
1 March 2012

1.5 Other A1nnouncements:
 
3 May 2011 - Blocklisting interim review
15 May 2011 - Result of AGM
15 May 2011 - Dividend declaration
15 May 2011 - Interim management statement
1 June 2011 - Compliance with model code
21 June 2011 - Tender offer
21 June 2011 - Dividend declaration
21 July 2011 - Half yearly report
28 July 2011 - Doc Re: submission of document
9 August 2011 - Director PDMR
13 September 2011 - Dividend declaration
13 September 2011 - Interim management statement
2 November 2011 - Blocklisting interim review
1 December 2011 - Director declaration
1 December 2011 - Compliance with model code
6 December 2011 - Dividend declaration
6 December 2011 - Tender offer
20 January 2012 - Final results
20 January 2012 - Doc Re: submission of document
31 January 2012 - Transaction in own shares
1 February 2012 - Transaction in own shares
3 February 2012 - Directorate change

2. Documents Filed with the Registrar of Companies:

Date               Form         
                                
21 March 2011      AA           
21 March 2011      RES10/11/9   
9 August 2011      AD01         
16 September 2011  CH04         
28 November 2011   AR01         
22 February 2012   SH01         
23 February 2012   SH01         

3. Printed Publications:

    The Annual Report and Accounts for the year ended 30 November 2011
    and the Half Yearly Report for the six months ended 31 May 2011   
    are available from the Company registered office, c/o of The      
    Company Secretary, BlackRock Commodities Income Investment Trust  
    plc, 12 Throgmorton Avenue, London EC2N 2DL or can be downloaded  
    from www.blackrock.co.uk/brci.                                    
                                                                      
Other sources of information:

The Company's Ordinary shares are listed on the London Stock Exchange and the
price of these shares is published in the Financial Times and the Times under
`Investment Companies' and in the Daily Telegraph under "Investment Trusts".
The share price is also available on the BlackRock Investment Management (UK)
Limited website at www.blackrock.co.uk/brci.

Further information can be obtained from BlackRock Investment Management (UK)
Limited as follows:

    Free investor helpline: 0800 445522                               
    Email address: www.blackrock.co.uk/brci.                          
                        
In addition, regular Factsheets on the Company are produced by BlackRock
Investment Management (UK) Limited and can be downloaded from 
www.blackrock.co.uk/brci .

BlackRock Investment Management (UK) Limited
Secretary
2 March 2012