Annual Information Update

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST plc

ANNUAL INFORMATION UPDATE

Annual Information Update for the period 26 February 2010 up to and including 4
March 2011.

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 Please note that some of this information may be out of date.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:
 
23 March 2010
26 April 2010
24 May 2010
18 June 2010
29 July 2010
5 August 2010
17 August 2010
14 September 2010
14 October 2010
15 November 2010
16 December 2010
21 January 2011
18 February 2011  

1.3 Holdings in Company:

1 March 2010
1 April 2010
4 May 2010 x 2
1 June 2010
1 July 2010
15 July 2010
2 August 2010
1 September 2010
1 October 2010
4 October 2010
1 November 2010
3 November 2010
4 November 2010 x 2
5 November 2010 x 3
9 November 2010
23 November 2010
2 December 2010
5 January 2011
1 February 2011

1.4 Other Announcements:
 
26 February 2010 - Annual information update
16 March 2010 - Result of AGM / dividend declaration / interim management
statement
30 March 2010 - Blocklisting - interim review
1 June 2010 - Compliance with model code
4 June 2010 - Transaction in own shares / total voting rights
21 June 2010 - Dividend declaration / tender offer
13 July 2010 - Directorate change
14 July 2010 - Half yearly financial report
23 July 2010 - Submission of documents
1 September 2010 - Issue of equity
14 September 2010 - Dividend declaration / interim management statement
27 September 2010 - Issue of equity
28 September 2010 - EGM statement
30 September 2010 - Admission to official list and to trading
1 October 2010 - C Share - investment of net proceeds / total voting rights
19 October 2010 - Dividend declaration / conversion of securities
1 November 2010 - Blocklisting - interim review
2 November 2010 - Total voting rights
10 November 2010 - Director/PDMR shareholding
1 December 2010 - Compliance with model code
2 December 2010 - Total voting rights
8 December 2010 - Dividend declaration
9 December 2010 - Statement re: tender offer
4 January 2011 - Total voting rights
7 January 2011 - Statement re: Michael Merton
20 January 2011 - Final results
31 January 2011 - Submission of documents
1 February 2011 - Total voting rights
1 March 2011 - Total voting rights

2. Documents Filed with the Registrar of Companies:

Date              Form         Description                                   
                                                                             
10 March 2010     AA           Accounts                                      
19 March 2010     CC04         Statement of Company's Objectives             
19 March 2010     RES10        Resolutions                                   
12 May 2010       RES10        Resolution                                    
14 June 2010      SH04         Treasury capital                              
6 August 2010     CH01         Director's change of details - H.van der Klugt
6 August 2010     AP01         Director appointed - M.Merton                 
6 October 2010    RES01        Resolutions                                   
6 October 2010    SH01         Statement of capital                          
30 November 2010  AR01         Annual return                                 
3 December 2010   SH02         Sub division                                  
3 December 2010   SH08         Notice of name/designation of share class     
3 December 2010   SH06         Statement of capital                          
13 December 2010  CH01         Director's change of details - M.Merton       

3. Printed Publications:

The Annual Report and Accounts for the year ended 30 November 2010
and the Half Yearly Report for the six months ended 31 May 2010   
are available from the Company registered office, c/o of The      
Company Secretary, BlackRock Commodities Income Investment Trust  
plc, 33 King William Street, London EC4R 9AS or can be downloaded 
from www.blackrock.co.uk/its.                                     
                                                                      
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/its.

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

Free investor helpline: 0800 445522                               
Email address: www.blackrock.co.uk/its.                           

In addition, regular Factsheets on the Company are produced by BlackRock
Investment Management (UK) Limited and can be downloaded from 
www.blackrock.co.uk/its.

BlackRock Investment Management (UK) Limited
Secretary
4 March 2011