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                                            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            Aviva plc & its subsidiaries                                  
notification obligation:                                                                
iii                                                                                     
                                                                                        
                          Registered Holder:                                            
                                                                                        
                                                                                        
                                                                                        
                          BNY (Nominees) Limited                                 56,666*
                                                                                        
                                                                                        
                                                                                        
                          BNY Norwich Union Nominees Limited                    432,348*
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                          Chase (GA Group) Nominees Limited                   2,538,541*
                                                                                        
                                                                                        
                                                                                        
                          Chase Nominees Limited                                121,170*
                                                                                        
                                                                                        
4. Full name of                                                                         
shareholder(s)            CUIM Nominee Limited                                  104,041* 
(if different from 3.):                                                                
iv                                                                                      
                                                                                        
                          Vidacos Nominees Limited                               44,069*
                                                                                        
                                                                                        
                                                                                        
                          *denotes direct interest                                      
                                                                                        
                                                                                        
                                                                                        
                          BNP Paribas Securities Services                         85,217
                                                                                        
                                                                                        
                                                                                        
                          Chase Nominees Limited                                 103,430               
                                                                                 
                                                                                        
                                                                                        
                          Vidacos Nominees Limited                               296,529 
                                                                                        
                                                                                        
                                                                                        
5. Date of the                                                                          
transaction and date on                                                                 
which the threshold is    28 October 2011                                               
crossed or                                                                              
reached: v                                                                              
                                                                                        
6. Date on which issuer   31 October 2011                                               
notified:                                                                               
                                                                                        
7. Threshold(s) that is/                                                                
are crossed or            4% to 5% Change at Direct Interest Level                      
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                                                                        
                                                                                                
                                                                                                
if possible  Number       Number    Number         Number of voting        % of  voting rights x
using        of           of        of shares      rights                                       
the ISIN     Shares       Voting                                                                
CODE                      Rights                                                                
                                    Direct         Direct xi  Indirect xii Direct   Indirect    
                                                                                                
                                                                                                
Ordinary                                                                                        
Shares                                                                                          
                                                                                                
             3,579,958    3,579,958 3,782,011      3,296,835  485,176      5.13%    0.75%       
                                                                                                
GB0004866223                                                                                    
                                                                                                
                                                                                                
                                                                                                
                                                                                                
                                                                                                
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.                  
                                                                                                
                                                                                                
                                                                                                

 

 

 

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                                           
                                                                                        
                                                                                        
                                                                         Nominal   Delta
                                                                                        
                                                                                        
                                                                                        

 

Total (A+B+C)                                                                           
                                                                                        
Number of voting rights                  Percentage of voting rights                    
                                                                                        
3,782,011                                5.88%                                          
                                                                                        

 

9. Chain of controlled undertakings through which the voting rights and/or the          
financial instruments are effectively held, if applicable: xxi                          
                                                                                        
The voting rights are managed and controlled by Aviva Investors Global Services         
Limited and Aviva Investors France SA, with the following chain of controlled           
undertakings:-                                                                          
                                                                                        
                                                                                        
                                                                                        
Aviva Investors Global Services Limited:                                                
                                                                                        
Aviva plc (Parent Company)                                                              
                                                                                        
Aviva Group Holdings Limited (wholly owned subsidiary of Aviva plc)                     
                                                                                        
Aviva Investors Holdings Limited (wholly owned subsidiary of Aviva Group                
Holdings Limited)                                                                       
                                                                                        
Aviva Investors Global Services Limited (wholly owned subsidiary of Aviva               
Investors Holdings Limited)                                                             
                                                                                        
                                                                                        
                                                                                        
Aviva Investors France SA:                                                              
                                                                                        
Aviva plc (Parent Company)                                                              
                                                                                        
Aviva Group Holdings Limited (wholly owned subsidiary of Aviva plc)                     
                                                                                        
Aviva International Insurance Limited (wholly owned subsidiary of Aviva Group           
Holdings Limited)                                                                       
                                                                                        
Aviva Insurance Limited (wholly owned subsidiary of Aviva International                 
Insurance Limited)                                                                      
                                                                                        
Aviva International Holdings Limited (wholly owned subsidiary of Aviva                  
Insurance Limited)                                                                      
                                                                                        
Aviva Participations SA (wholly owned subsidiary of Aviva International                 
Holdings Limited)                                                                       
                                                                                        
Aviva France SA (wholly owned subsidiary of Aviva Participations SA)                    
                                                                                        
Aviva Investors France SA (wholly owned subsidiary of Aviva France SA)                  
                                                                                        
                                                                                        
                                                                                        
Proxy Voting:                                                                           
                                                                                        
10. Name of the proxy holder:                       See Section 4                       
                                                                                        
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:   Figures are based on a total number of voting rights of   
                              64,320,708, as per the Company's Total Voting Rights     
                              Announcement of 1 June 2011.                              
                                                                                        
                                                                                        
                                                                                        
14. Contact name:                  Neil Whittaker, Aviva plc                            
                                                                                        
15. Contact telephone number:      01603 684420