Annual Information Update

BLACKROCK WORLD MINING TRUST plc

ANNUAL INFORMATION UPDATE

Annual Information Update for the 12 months from 1 March 2010 up to and
including 28 February 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 Please note that some of this information may be out of date.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 BRWM)           

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 Holdings in Company:

    01 February 2011                                                  
    05 January 2011                                                   
    06 December 2010                                                  
    01 December 2010                                                  
    24 November 2010                                                  
    01 November 2010                                                  
    01 October 2010                                                   
    01 September 2010                                                 
    02 August 2010                                                    
    01 July 2010                                                      
    08 June 2010                                                      
    01 June 2010                                                      
    04 May 2010                                                       
    01 April 2010                                                     
    01 March 2010                                                     

1.3 Transactions in own shares:

    29 September 2010                                                 
    06 September 2010                                                 
    13 August 2010                                                    

1.4 Portfolio Updates:

    18 February 2011                                                  
    17 January 2011                                                   
    05 January 2011                                                   
    16 December 2010                                                  
    15 November 2010                                                  
    15 October 2010                                                   
    01 October 2010                                                   
    14 September 2010                                                 
    18 August 2010                                                    
    28 July 2010                                                      
    06 July 2010                                                      
    15 June 2010                                                      
    13 May 2010                                                       
    14 April 2010                                                     
    01 April 2010                                                     
    16 March 2010                                                     

1.5 Other Announcements:

    24 February 2011     Final Results                                
    01 February 2011     Total Voting Rights                          
    05 January 2011      Compliance with Model Code                   
    04 January 2011      Total Voting Rights                          
    12 November 2010     Interim Management Statement                 
    31 August 2010       Total Voting Rights                          
    24 August 2010       Doc re Half Yearly Financial Report          
    11 August 2010       Half Yearly Report                           
    01 July 2010         Compliance with Model Code                   
    21 April 2010        Interim Management Statement                 
    21 April 2010        Result of Annual General Meeting             
    03 March 2010        Annual Information Update                    
    02 March 2010        Submission of Documents                      

2. Documents Filed with the Registrar of Companies:

    08 February 2011     Form CH01                                    
    25 October 2010      Form AR01 Annual Return                      
    15 October 2010      Form SH03                                    
    21 September 2010    Form SH03                                    
    02 September 2010    Form SH03                                    
    04 May 2010          Full Accounts made up to 31 December 2009    
    23 April 2010        AGM Special Resolutions & Articles of        
                         Association                                  
    23 April 2010        Form CC04                                    

3. Printed Publications:

    The Annual Report and Accounts for the year ended 31 December 2010 are     
    available from the Company's registered office, c/o The Company Secretary, 
    BlackRock World Mining Trust plc, 33 King William Street, London EC4R 9AS  
    or can be downloaded from                                                  
                                                                               
    www.blackrock.co.uk/content/groups/uksite/documents/literature/blk047735.pdf                                                              

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 BlackRock's website at

www.blackrock.co.uk/IndividualInvestors/FundCentre/InvestmentTrustPricing/index.htm

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/content/groups/uksite/documents/literature/1111100154.pdf

BlackRock Investment Management (UK) Limited
Secretary
4 March 2011


ENDS


Neither the contents of the Manager's website nor the contents of any website
accessible from hyperlinks on the Manager's website (or any other website) is
incorporated into, or forms part of, this announcement.