Holding(s) in Company

TR-1 (i) NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

HSBC Infrastructure Company Limited

2. Reason for the notification                                  State          
                                                                Yes/No         
                                                                               
An acquisition or disposal of voting rights                      Yes           
                                                                               
An acquisition or disposal of financial instruments                            
which may result in the                                                        
acquisition of shares already issued to which voting                           
rights are attached                                                            
                                                                               
An event changing the breakdown of voting rights                               
                                                                               
Other (please specify): Initial Disclosure                                     

3. Full name of person(s) subject to the notification       Brewin Dolphin     
obligation (iii):                                         Securities Limited   
                                                                               
4. Full name of shareholder(s) (if different from 3.)                          
(iv):                                                                          
                                                                               
5. Date of the transaction (and date on which the           13th May 2008      
threshold is crossed                                                           
or reached if different) (v):                                                  
                                                                               
6. Date on which issuer notified:                           19th May 2008      
                                                                               
7. Threshold(s) that is/are crossed or reached:                  10%           
                                                                               
8. Notified details:                                                           

A: Voting rights attached to shares

Class/type of  Situation previous to  Resulting situation after the triggering 
    shares        the Triggering                 transaction (vii)             
 if possible     transaction (vi)                                              
using the ISIN                                                                 
     CODE                                                                      
                                                                               
                 Number     Number   Number  Number of voting    % of voting   
                   of         of       of       rights (ix)         rights     
                 Shares     Voting   shares                                    
                            Rights                                             
                            (viii)                                             
                                                                               
   Ordinary                          Direct  Direct  Indirect  Direct Indirect 
  GBP0.0001                                   (x)      (xi)                    
                                                                               
 GB00B0T4LH64  18,151,617 18,151,167   N/A    N/A   25,040,731  N/A   10.0163% 
                                                                               

B: Financial Instruments

Resulting situation after the triggering transaction (xii)

   Type of     Expiration       Exercise/        Number of voting       % of   
  financial    date (xiii)      Conversion      rights that may be     voting  
 instrument                 Period/ Date (xiv)    acquired if the      rights  
                                                    instrument                 
                                                   is exercised/               
                                                     converted                 
                                                                               

Total (A+B)                             18,151,617                             
                                                                               
Number of voting rights                 % of voting rights                     
                                                                               
25,040,731                              10.0163%                               

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable (xv):

Indirect - Brewin Nominees Charities Limited - 170,100 - 0.0680%               
                                                                               
Indirect - Brewin Nominees (Channel Islands) Limited - 1,000,318 - 0.4001%     
                                                                               
Indirect - Brewin Nominees Limited - 1,427,480- 0.5710%                        
                                                                               
Indirect - Giltspur Nominees Limited - 11,040,043- 4.4160%                     
                                                                               
Indirect - Four Yards Nominees Limited - 258,625 - 0.1035%                     
                                                                               
Indirect - North Castle Street Nominees Limited - 27,430 - 0.0110%             
                                                                               
Indirect - BDS Nominees Limited - 8,352,331 - 3.3409%                          
                                                                               
Indirect - Brewin Nominees Ltd a/c Charity- 2,764,404 - 1.1058%                

Proxy Voting:


10. Name of the proxy holder:                                 N/A              
                                                                               
11. Number of voting rights proxy holder will cease to hold:  N/A              
                                                                               
12. Date on which proxy holder will cease to hold voting      N/A              
rights:                                                                        

13. Additional information:                                   Figures based on 
                                                              shares in issue  
                                                              of 250,000,000   
                                                              and voting rights
                                                              at a ratio of 1: 
                                                              1.               
                                                                               
                                                              The indirect     
                                                              voting rights    
                                                              under (9) relate 
                                                              to shares held in
                                                              client           
                                                              portfolios,      
                                                              managed by those 
                                                              firms, under     
                                                              discretionary    
                                                              investment       
                                                              management       
                                                              agreements       
                                                                               
14. Contact name:                                             Mark Taylor      
                                                                               
15. Contact telephone number:                                 0845 059 6332