Holding(s) in Company

TR-1:               Notification of major interests in shares

1. Identity of the issuer or the underlying issuer of Severn Trent PLC       
existing shares to which voting rights are attached:                         
                                                                             
2. Reason for the notification     (please tick the appropriate box          
or boxes)                                                                    
                                                                             
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):                                                      
                                                                             
3. Full name of person(s) subject to the notification Newton Investment      
obligation:                                           Management Limited     
                                                                             
4. Full name of shareholder(s) (if different from                            
3.):                                                                         
                                                                             
5. Date of the transaction (and date on which the     06/05/2009             
threshold is crossed or reached if different):                               
                                                                             
6. Date on which issuer notified:                     07/05/2009             
                                                                             
7. Threshold(s) that is/are crossed or reached:       Increase  from 4.99% to
                                                      5.05%                  
                                                                             
8. Notified details:                                  The percentage         
                                                      holding has increased  
                                                      as a result of         
                                                      purchases of 136,529   
                                                      shares.                
                                                                             

 

A: Voting rights attached to shares                                           
                                                                              
Class/type   Situation previous to    Resulting situation after the triggering
of shares    the Triggering           transaction                             
             transaction                                                      
 if possible                                                                  
using the    Number of  Number of     Number Number of voting  % of voting    
ISIN CODE    Shares     Voting Rights of     rights            rights         
                                      shares                                  
                                                                              
                                      Direct Direct Indirect   Direct Indirect
                                                                              
  Ordinary   11,798,145 4.99%              N N/     11,934,674 N/A    5.05%   
   Shares                             /A     A                                
                                                                              
    ISIN                                                                          
GB00B1FH8J72                                                                  
                                                                              
                                                                              
                                                                              

 

B: Financial Instruments                                                      
                                                                              
Resulting situation after the triggering transaction                          
                                                                              
Type of     Expiration Exercise/     Number of voting rights that may  % of   
financial   date       Conversion    be acquired if the instrument is  voting 
instrument             Period/ Date  exercised/ converted.             rights 
                                                                              
                                                                              
 

Total (A+B)                                                                   
                                                                              
Number of voting rights                     % of voting rights                
                                                                              
11,934,674                                  5.05%                             
                                                                              

9. Chain of controlled undertakings through which the voting rights and/or the 
financial instruments are effectively held, if applicable:                     
                                                                               
Newton Investment Management Limited hold these shares as a discretionary      
Investment Manager.                                                            
                                                                               

 

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 rights: N/A     
                                                                         

 

13. Additional information:                    
                                               
14. Contact name:             Richard Brierley 
                                               
15. Contact telephone number: [phone]
                                               

AnnexNotification 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)     Newton Investment       
                                                       Management Ltd           
                                                                                
Contact address (registered office for legal entities)  Mellon Financial Centre 
                                                                                
                                                       160 Queen Victoria Street
                                                                                
                                                        London EC4V 4LA         
                                                                                
Phone number                                            [phone]     
                                                                                
Other useful information (at least legal                Rachel Wheeler          
representative for legal persons)                                               
                                                                                


 

B:             Identity of the notifier, if applicable                          
                                                                                
Full name                                                    Newton Investment  
                                                             Management Ltd     
                                                                                
Contact address                                               Mellon Financial  
                                                             Centre             
                                                                                
                                                             160 Queen Victoria 
                                                             Street             
                                                                                
                                                              London EC4V 4LA   
                                                                                
Phone number                                                   [phone]   
                                                             9000               
                                                                                
Other useful information (e.g. functional relationship with    Discretionary    
the person or legal entity subject to the notification       Investment         
obligation)                                                  Manager            
                                                                                


 

C:             Additional information