Annual Information Update

BLACKROCK SMALLER COMPANIES TRUST PLC

ANNUAL INFORMATION UPDATE

Annual Information Update for the period 1 March 2009 up to and including 18
May 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 Please note that some of this information may be out of date.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.uk-wire.com using EPIC code BRSC.)

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:

26 March 2009
27 April 2009
21 May 2009
23 June 2009
16 July 2009
24 August 2009
25 September 2009
26 October 2009
19 November 2009
16 December 2009
28 January 2010
25 February 2010
18 March 2010
22 April 2010

1.3 Holdings in Company

2 March 2009
1 April 2009
21 April 2009
1 May 2009
13 May 2009
1 June 2009
1 July 2009
23 July 2009
3 August 2009 x 2
2 September 2009
2 October 2009
5 October 2009
19 October 2009
3 November 2009
5 November 2009
11 November 2009
3 December 2009
4 January 2010
2 February 2010
8 February 2010 x 5
26 February 2010
1 March 2010
29 March 2010
1 April 2010
4 May 2010

1.4 Other Announcements:

1 March 2009         Compliance with model code                       
9 April 2009         Transaction in own shares                        
23 April 2009        Final results                                    
6 May 2009           Doc Re: submission of documents                  
21 May 2009          Annual information update                        
5 June 2009          Portfolio update                                 
15 June 2009         Total voting rights                              
17 June 2009         AGM statement                                    
16 July 2009         Interim management statement                     
24 July 2009         Director/PDMR                                    
28 July 2009         Director/PDMR x 2                                
1 September 2009     Compliance with model code                       
8 October 2009       Half yearly report                               
20 October 2009      Doc Re: submission of documents                  
4 December 2009      Director/PDMR                                    
7 December 2009      Director/PDMR                                    
8 December 2009      Director/PDMR                                    
14 January 2010      Interim management statement                     
4 February 2010      Transaction in own shares                        
4 February 2010      Total voting rights                              
5 February 2010      Transaction in own shares                        
5 February 2010      Total voting rights                              
1 March 2010         Compliance with model code                       
23 April 2010        Final results                                    
4 May 2010           Doc Re: submission of documents                  

2. Documents Filed with the Registrar of Companies:

Date                 Form                                
                                                         
19 June 2009         RES x 3                             
23 June 2009         AA                                 
25 June 2009         169(1B)                             
29 July 2009         363a                                
29 July 2009         288c                                
29 July 2009         353a                                
29 July 2009         190a                                
7 October 2009       AD02                                
7 October 2009       AD03                                
6 April 2010         SH03 x 2                            

3. Printed Publications:

The Annual Report and Accounts for the year ended 28 February 2010 and the
Half Yearly Report for the six months ended 31 August 2009 are available from
BlackRock Investment Management (UK) Limited, 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, monthly 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
18 May 2010