Holding(s) in Company

TR-1: Notifications of Major Interests in Shares                               

1. Identity of the issuer or the underlying           HSBC Infrastructure      
issuer of existing shares to which voting                                      
rights are attached:                                                           
                                                                               
2. Reason for notification (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):                                                        
                                                                               
3. Full name of person(s)                        Schroders plc                 
subject to notification                                                        
obligation:                                                                    
                                                                               
4. Full name of shareholder(s)                                                 
(if different from 3):                                                         
                                                                               
5. Date of transaction (and                        11.09.08                    
date on which the threshold is                                                 
crossed or reached if                                                          
different):                                                                    
                                                                               
6. Date on which issuer                            18.09.08                    
notified:                                                                      
                                                                               
7. Threshold(s) that is/are                        Above 5%                    
crossed or reached:                                                            

8: Notified Details                                                            
                                                                               
A: Voting rights attached to shares                                            
                                                                               
Class/type of   Situation         Resulting situation after the triggering     
shares          previous to the   transaction                                  
                triggering                                                     
If possible use transaction                                                    
ISIN code                                                                      
                Number   Number   Number of  Number of voting  Percentage of   
                of       of       shares     rights            voting rights   
                shares   voting                                                
                         rights              Direct Indirect   Direct  Indirect
                                                                               
     Ord          N/A      N/A    21,800,005  N/A   17,083,714  N/A     5.11%  
 GB00B0T4LH64                                                                  

B: Financial Instruments                                                       
                                                                               
Resulting situation after the triggering transaction                           
                                                                               
Type of        Expiration    Exercise/      No. of voting rights Percentage of 
financial      date          conversion     that may be acquired voting rights 
instrument                   period/date    (if the instrument                 
                                            exercised/converted)               
                                                                               

Total (A+B)                                                                    
                                                                               
Number of voting rights                 Percentage of voting rights            
                                                                               
              17,083,714                                 5.11%                 

9. Chain of controlled undertakings through which the voting rights and /or the
financial instruments are effectively held, if applicable:                     
                                                                               
Schroder Investment Management Limited - 15,106,795 - 4.52%                    
                                                                               
Schroder and Co Limited - 1976919 - 0.59%                                      

Proxy Voting:                                                                  
                                                                               
10. Name of proxy holder:                                                      
                                                                               
11. Number of voting rights proxy                                              
holder will cease to hold:                                                     
                                                                               
12. Date on which proxy holder will                                            
cease to hold voting rights:                                                   

13. Additional information:             The shares referred to in section 9 are
                                        held in portfolios managed by those    
                                        firms on a discretionary basis for     
                                        clients under investment management    
                                        agreements.                            
                                                                               
14 Contact name:                                      Andrea Rowe              
                                                                               
15. Contact telephone name:                          020 7658 2521             

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in shares

A: Identity of the persons or legal entity subject to the notification         
obligation                                                                     
                                                                               
Full name                               Schroder Plc                           
                                                                               
(including legal form of legal                                                 
entities)                                                                      
                                                                               
Contact address                         31 Gresham Street                      
                                                                               
(registered office for legal entities)  London                                 
                                                                               
                                        EC2V 7QA                               
                                                                               
Phone number & email                    020 7658 2521                          
                                                                               
Other useful information                              Andrea Rowe              
                                                                               
(at least legal representative for                                             
legal persons)                                                                 

B: Identity of the notifier, if applicable                                     
                                                                               
Full name                                                                      
                                                                               
Contact address                                                                
                                                                               
Phone number & email                                                           
                                                                               
Other useful information                                                       
                                                                               
(e.g. functional relationship with the                                         
person or legal entity subject to the                                          
notification obligation)                                                       

C: Additional information