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                                      
of existing shares to which voting rights are                           Keller Group PLC
attached:ii                                                                             
                                                                                        
2 Reason for the notification (please tick the appropriate box or boxes):               
                                                                                        
An acquisition or disposal of voting rights                                             
                                                                                        
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                           BlackRock, Inc.      
notification obligation:iii                                                             
                                                                                        
4. Full name of shareholder(s)                                                          
 (if different from 3.):iv                                                              
                                                                                        
5. Date of the transaction and date on                                                  
which the threshold is crossed or                                   20th May 2011       
reached:v                                                                               
                                                                                        
6. Date on which issuer notified:                                   23rd May 2011       
                                                                                        
7. Threshold(s) that is/are crossed or                        Holding has gone below 12%
reached: vi, vii                                                                        
                                                                                        


 

8. Notified details:                                                                                   
                                                                                                       
A: Voting rights attached to shares viii, ix                                                           
                                                                                                       
Class/type   Situation previous                   Resulting situation after the triggering transaction 
of           to the triggering                                                                         
shares       transaction                                                                               
                                                                                                       
             Number                 Number        Number   Number of voting        % of  voting rights 
if possible  of                     of            of       rights                  x                   
using        Shares                 Voting        shares                                               
the ISIN                            Rights                                                             
CODE                                              Direct   Direct xi Indirect xii  Direct  Indirect    
                                                                                                       
GB0004866223 6,403,711              6,403,711     N/A      N/A       6,349,449     N/A     9.87%       
                                                                                                       
                                                                                                       
                                                                                                       
B: Qualifying Financial Instruments                                                                    
                                                                                                       
Resulting situation after the triggering transaction                                                   
                                                                                                       
Type of        Expiration            Exercise/              Number of voting             % of voting   
financial      date xiii             Conversion Period xiv  rights that may be           rights        
instrument                                                  acquired if the                            
                                                            instrument is                              
                                                            exercised/ converted.                      
                                                                                                       
                                                                                                       
                                                                                                       
                                                                                                       
                                                                                                       
C: Financial Instruments with similar economic effect to Qualifying Financial                          
Instruments xv, xvi                                                                                    
                                                                                                       
Resulting situation after the triggering transaction                                                   
                                                                                                       
Type of       Exercise price        Expiration  Exercise/  Number of voting rights    % of voting      
financial                           date xvii   Conversion instrument refers to       rights xix, xx   
instrument                                      period                                                 
                                                xviii                                                  
                                                                                                       
                                                                                      Nominal Delta      
CFD                                                        1,320,672                                   
                                                                                      2.05% 2.05%      
                                                                                                       
                                                                                                       
                                                                                                       
Total (A+B+C)                                                                                          
                                                                                                       
Number of voting rights                                  Percentage of voting rights                   
                                                                                                       
7,670,121                                                11.93%                                        
                                                                                                       


 

9. Chain of controlled undertakings through which the voting rights and/or the          
financial instruments are effectively held, if applicable: xxi                          
                                                                                        
                                                                                        
                                                                                        
BlackRock Investment Management (UK) Limited - 7,670,121 (11.93%)                       
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
Proxy Voting:                                                                           
                                                                                        
10. Name of the 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:                                                                          
                                                                                        
                                                                                        
                                                                                        
                                        BlackRock International Threshold Reporting Team
13. Additional information:                                                             
                                                                                        
14. Contact name:                       Andrew Manchester                               
                                                                                        
15. Contact telephone number:           020 7743 5773; [e-mail]  
                                                                                        


 

Note: Annex should only be submitted to the FSA not the issuer                          
                                                                                        
Annex: Notification of major interests in sharesxxii                                    
                                                                                        
                                                                                        
                                                                                        
A: Identity of the persons or legal entity subject to the notification                  
obligation                                                                              
                                                                                        
Full name                                                                               
                                                                                        
(including legal form of legal entities)                 BlackRock, Inc.                
                                                                                        
                                                                                        
                                                                                        
Contact address                                                                         
                                                         33 King William Street, London,
(registered office for legal entities)                   EC4R 9AS                       
                                                                                        
                                                                                        
                                                                                        
Phone number & email                                     020 7743 5773;                 
                                                         [e-mail]
                                                                                        
                                                                                        
Other useful information                                                                
                                                                                        
(at least legal representative for legal persons)        Andrew Manchester              
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
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                                                               
                                                                                        
                                                                                        
                                                                                        
For notes on how to complete form TR-1 please see the FSA website.