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                                    
                                                                               
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                       Yes           

3. Full name of person(s) subject to the notification Brewin Dolphin Securities
obligation (iii):                                              Limited         
                                                                               
4. Full name of shareholder(s) (if different from 3.)                          
(iv):                                                                          
                                                                               
5. Date of the transaction (and date on which the         22nd January 2007    
threshold is crossed                                                           
or reached if different) (v):                                                  
                                                                               
6. Date on which issuer notified:                          26th March 2007     
                                                                               
7. Threshold(s) that is/are crossed or reached:                  7%            
                                                                               
8. Notified details:                                      Nominee Holdings     

A: Voting rights attached to shares

 Class/type of       Situation       Resulting situation after the triggering  
     shares         previous to                 transaction (vii)              
  if possible     the Triggering                                               
 using the ISIN  transaction (vi)                                              
      CODE                                                                     
                                                                               
                  Number   Number   Number   Number of voting    % of voting   
                    of       of       of       rights (ix)          rights     
                  Shares   Voting   shares                                     
                           Rights                                              
                           (viii)                                              
                                                                               
                                    Direct  Direct   Indirect  Direct  Indirect
                                              (x)      (xi)                    
                                                                               
  GB00B0T4LH64                                      18,151,617         7.2606% 
                                                                               

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                     
                                                                               
18,151,617                              7.2606%                                

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 - 431,333 - 0.1724%               
                                                                               
Indirect - Brewin Nominees (Channel Islands) Limited - 863,127 - 0.3453%       
                                                                               
Indirect - Brewin Nominees Limited - 2,342,277 - 0.9369%                       
                                                                               
Indirect - Giltspur Nominees Limited - 8,001,082 - 3.2004%                     
                                                                               
Indirect - Four Yards Nominees Limited - 258,625 - 0.1035%                     
                                                                               
Indirect - North Castle Street Nominees Limited - 19,000 - 0.0076%             
                                                                               
Indirect BDS Nominees Limited - 6,236,173 - 2.4945%                            

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   
                                                                               
                                                              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:                                             Lee Jemmerson ASI
                                                                               
15. Contact telephone number:                                 0191 279 7334    

Annex Notification Of Major Interests In Shares (xvi)


A: Identity of the person or legal entity subject to the                       
notification obligation                                                        
                                                                               
Full name (including legal form for legal entities)                            
                                                                               
Contact address (registered office for legal entities)                         
                                                                               
Phone number                                                                   
                                                                               
Other useful information (at least legal representative for                    
legal persons)                                                                 
                                                                               
B: Identity of the notifier, if applicable (xvii)                              
                                                                               
Full name                                                                      
                                                                               
Contact address                                                                
                                                                               
Phone number                                                                   
                                                                               
Other useful information (e.g. functional relationship with                    
the person                                                                     
or legal entity subject to the notification obligation)                        

C: Additional information



Nigel Massey

Kleinwort Benson (Channel Islands) Fund Services Limited

Company Secretary

Tel [phone]

Fax [phone]