Annual Information Update

BLACKROCK WORLD MINING TRUST plc

ANNUAL INFORMATION UPDATE

Annual Information Update for the period from 1 March 2009 up to and including
28 February 2010.

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 Please note that some of this information may be out of date.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:

    19 February 2010                                                  
    02 February 2010                                                  
    04 January 2010                                                   
    03 December 2009                                                  
    04 November 2009                                                  
    03 November 2009                                                  
    02 October 2009                                                   
    02 September 2009                                                 
    03 August 2009                                                    
    01 July 2009                                                      
    01 June 2009                                                      
    01 May 2009                                                       
    06 April 2009                                                     
    01 April 2009                                                     
    16 March 2009                                                     
    02 March 2009                                                     

1.3 Transactions in own shares:

    NONE                                                              

1.4 Portfolio Updates:

    26 February 2010 (x2)                                         
    18 January 2010                                                   
    11 January 2010                                                   
    14 December 2009                                                  
    12 November 2009                                                  
    14 October 2009                                                   
    06 October 2009                                                   
    21 September 2009                                                 
    17 August 2009                                                    
    16 July 2009                                                      
    24 June 2009                                                      
    14 May 2009                                                       
    22 April 2009                                                     
    23 March 2009                                                     

1.5 Other Announcements:

    19 February 2010     Final Results                                
    15 January 2010      Statement re Portfolio Manager               
    04 January 2010      Compliance with Model Code                   
    29 October 2009      Interim Management Statement                 
    26 August 2009       Submission of Document                       
    14 August 2009       Half Yearly Report                           
    01 July 2009         Compliance with Model Code                   
    23 April 2009        Interim Management Statement                 
    23 April 2009        Result of Annual General Meeting             
    31 March 2009        Total Voting Rights                          
    16 March 2009        Expiry of Warrants                           
    03 March 2009        Cancellation of Warrant Listing              
    02 March 2009        Exercise of Warrants                         
    02 March 2009        Annual Information Update                    

2. Documents Filed with the Registrar of Companies:

    02 November 2009     Form AR01 Annual Return                      
    06 October 2009      Form AD03                                    
    06 October 2009      Form AD02                                    
    30 April 2009        Full Accounts made up to 31 December 2008    
    29 April 2009        AGM Special Resolutions & Articles of        
                         Association                                  
    10 March 2009        Form 88(2) (1,313 shares)                    

3. Printed Publications:

    The Annual Report and Accounts for the year ended 31 December 2009
    and the Half Yearly Financial Report for the six months ended 30  
    June 2009 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/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 BlackRock's 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

3 March 2010