Holding(s) in Company

For filings with the FSA include the annex                                              
                                                                                        
For filings with issuer exclude the annex                                               
                                                                                        
                                                                                        
                                                                                        
TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi                                         
                                                                                        
                                                                                        
                                                                                        
1. Identity of the issuer or the underlying issuer                     United Utilities 
of existing shares to which voting rights are                             Group Plc     
attached:ii                                                              GB00B39J2M42   
                                                                                        
2 Reason for the notification (please tick the appropriate box or boxes):               
                                                                                        
An acquisition or disposal of voting rights                                        X    
                                                                                        
An acquisition or disposal of qualifying financial instruments which may result         
in the acquisition of shares already issued to which voting rights are attached         
                                                                                        
An acquisition or disposal of instruments with similar economic effect to               
qualifying financial instruments                                                        
                                                                                        
An event changing the breakdown of voting rights                                        
                                                                                        
Other (please specify):                                                                 
                                                                                        
3. Full name of person(s) subject to the                            Norges Bank         
notification obligation:iii                                                             
                                                                                        
4. Full name of shareholder(s)                                      N/A                 
 (if different from 3.):iv                                                              
                                                                                        
5. Date of the transaction and date on                                                  
which the threshold is crossed or                                   28th September 2012 
reached: v                                                                              
                                                                                        
6. Date on which issuer notified:                                   1st October 2012    
                                                                                        
7. Threshold(s) that is/are crossed or                              3%                  
reached: vi, vii                                                                        
                                                                                        


 

 

8. Notified details:                                                                    
                                                                                        
A: Voting rights attached to shares viii, ix                                            
                                                                                        

 

Class/type of   Situation previous    Resulting situation after the triggering          
shares          to the triggering     transaction                                       
                transaction                                                             
                                                                                        
if possible     Number     Number     Number     Number of voting    % of  voting rights
using           of         of         of shares  rights              x                  
the ISIN CODE   Shares     Voting                                                       
                           Rights     Direct     Direct xi  Indirect Direct   Indirect  
                                                            xii                         
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                20,318,743 20,318,743 20,495,921 20,495,921          3.01%              
GB00B39J2M42                                                                            
                                                                                        
                                                                                        
                                                                                        

 

                                                                                        
                                                                                        
B: Qualifying Financial Instruments                                                     
                                                                                        
Resulting situation after the triggering transaction                                    
                                                                                        

 

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

 

                                                                                        
                                                                                        
C: Financial Instruments with similar economic effect to Qualifying Financial           
Instruments xv, xvi                                                                     
                                                                                        
Resulting situation after the triggering transaction                                    
                                                                                        

 

Type of    Exercise Expiration  Exercise/     Number of voting rights  % of voting      
financial  price    date xvii   Conversion    instrument refers to     rights xix, xx   
instrument                      period xviii                                            
                                                                                        
                                                                                        
N/A        N/A      N/A         N/A           N/A                      Nominal     Delta
                                                                                        
                                                                       N/A         N/A  
                                                                                        
                                                                                        
                                                                                        
Total (A+B+C)                                                                           
                                                                                        
Number of voting rights                Percentage of voting rights                      
                                                                                        
20,495,921                             3.01%                                            
                                                                                        


 

9. Chain of controlled undertakings through which the voting rights and/or the          
financial instruments are effectively held, if applicable: xxi                          
                                                                                        
                                                                                        
                                                                                        
N/A                                                                                     
                                                                                        
                                                                                        
                                                                                        
Proxy Voting:                                                                           
                                                                                        
10. Name of the proxy holder:                                      Norges Bank          
                                                                                        
11. Number of voting rights proxy holder will cease                N/A                  
to hold:                                                                                
                                                                                        
12. Date on which proxy holder will cease to hold                  N/A                  
voting rights:                                                                          
                                                                                        
                                                                                        
                                                                                        
                                                                                        
13. Additional information:                                  None                       
                                                                                        
14. Contact name:                                            Jonas Lexmark              
                                                                                        
15. Contact telephone number:                                [phone]