Annual Information Update

BLACKROCK SMALLER COMPANIES TRUST PLC

ANNUAL INFORMATION UPDATE

Annual Information Update for the period 1 March 2008 up to and including 21
May 2009.

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 Please note that some of this information may be out of date.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.uk-wire.com using EPIC code MBS.)                 

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 Performance at month end:

    27 April 2009                                                     
    26 March 2009                                                     
    23 February 2009                                                  
    26 January 2009                                                   
    15 December 2008                                                  
    25 November 2008                                                  
    22 October 2008                                                   
    18 September 2008                                                 
    21 August 2008                                                    
    25 July 2008                                                      
    26 June 2008                                                      
    23 May 2008                                                       
    25 April 2008                                                     
    31 March 2008                                                     

1.3 Holdings in Company

    13 May 2009                                                       
    1 May 2009                                                        
    21 April 2009                                                     
    1 April 2009                                                      
    2 March 2009                                                      
    5 February 2009                                                   
    22 January 2009                                                   
    5 January 2009                                                    
    3 December 2008                                                   
    3 November 2008                                                   
    2 October 2008                                                    
    2 September 2008                                                  
    7 August 2008                                                     
    4 August 2008                                                     
    15 July 2008                                                      
    1 July 2008                                                       
    2 June 2008                                                       
    30 May 2008                                                       
    1 May 2008                                                        
    1 April 2008                                                      
    3 March 2008                                                      

1.4 Other Announcements:

    6 May 2009           Doc Re: Submission of Docs                       
    23 April 2009        Final Results                                    
    9 April 2009         Transaction in Own Shares                        
    2 March 2009         Compliance with Model Code                       
    19 February 2009     Second Price Monitoring Extension                
    19 February 2009     Price Monitoring Extension                       
    28 January 2009      Interim Management Statement                     
    16 December 2008     Total Voting Rights                              
    15 December 2008     Transaction in Own Shares                        
    12 December 2008     Total Voting Rights                              
    11 December 2008     Transaction in Own Shares                        
    10 December 2008     Total Voting Rights                              
    9 December 2008      Transaction in Own Shares                        
    10 November 2008     Director/PDMR Shareholding                       
    20 October 2008      Doc Re: Submission of Documents                  
    9 October 2008       Half Yearly Report                               
    8 October 2008       Change of Advisor                                
    1 October 2008       Compliance with Model Code                       
    16 July 2008         Interim Management Statement                     
    6 June 2008          Portfolio Update                                 
    4 June 2008          Result of AGM                                    
    29 May 2008          Annual Information Update                        
    6 May 2008           Doc Re: Submission of Documents                  
    2 May 2008           Director/PDMR Shareholding                       
    2 May 2008           Portfolio Update                                 
    28 April 2008        Change of Name                                   
    28 April 2008        Final Results                                    
    23 April 2008        Directorate Change                               
    23 April 2008        Results of General Meeting                       
    2 April 2008         Portfolio Update                                 
    31 March 2008        Director/PDMR Shareholding                       
    27 March 2008        Doc Re: Submission of Documents                  
    4 March 2008         Portfolio Update                                 
    3 March 2008         Listing Rules 15.5.1(4)                          

2. Documents Filed with the Registrar of Companies:

    Date              Form          Description                             
                                                                            
    13 January 2009   169(1B)       Purchase of shares to be held in        
                                    treasury                                
    6 January 2009    169(1B)       Purchase of shares to be held in        
                                    treasury                                
    30 December 2008  169(1B)       Purchase of shares to be held in        
                                    treasury                                
    23 October 2008   363a          Annual Return                           
    10 June 2008      RES01         AGM Resolutions                         
    9 June 2008       AA            Signed Accounts                         
    2 May 2008        288a          Director Appointed                      
    29 April 2008     MEM           Memorandum and Articles                 
    29 April 2008     287           Change of Registered Office             

3. Printed Publications:

    The Annual Report and Accounts for the year ended 28 February 2009 and the 
    Half Yearly Financial Report for the six months ended 31 August 2008 are available   
    from the Company's registered office, c/o of The Company Secretary, BlackRock
    Smaller Companies 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
21 May 2009