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 SHARES                                
                                                                              

 
1. Identity of the issuer or the underlying issuer of existing                
shares to which voting rights are attached:                           Keller  
                                                                    Group plc 
                                                                              

2 Reason for the notification (please tick the appropriate box or boxes):     
                                                                              
                                                                              
                                                                              
An acquisition or disposal of voting rights                                Yes
                                                                              
                                                                              
                                                                              
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 notification                         
obligation:                                                                   
                                                               Baillie Gifford
                                                                    & Co      
                                                                              
                                                                              
                                                                              
4. Full name of shareholder(s) (if different from 3.):                        
                                                                              
                                                                              
                                                                              
5. Date of the transaction and date on which the threshold is                 
crossed or reached:                                              6 Dec 2010   
                                                                              
                                                                              
                                                                              
6. Date on which issuer notified:                                             
                                                                              
                                                                 7 Dec 2010   
                                                                              
7. Threshold(s) that is/are crossed or reached:                               
                                                                              
                                                                     5%       
                                                                              


 

8. Notified details:                                                          
                                                                              
A: Voting rights attached to shares                                           
                                                                              
                                                                              
                                                                              
Class/type   Situation         Resulting situation after the triggering       
of           previous          transaction                                    
shares       to the triggering                                                
             transaction                                                      
                                                                              
if possible  Number   Number   Number     Number of voting  % of  voting      
using        of       of       of shares  rights            rights            
the ISIN     Shares   Voting                                                  
CODE                  Rights   Direct     Direct Indirect   Direct  Indirect  
                                                                              
Ordinary                                                                      
                                                                              
Share                                                                         
                                                                              
GB0004866223 Below 5% Below 5% 3,251,556         3,251,556          5.06      
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              

 

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

 

C: Financial Instruments with similar economic effect to Qualifying Financial 
Instruments                                                                   
                                                                              
Resulting situation after the triggering transaction                          
                                                                              
                                                                              
                                                                              
Type of         Exercise Expiration Exercise/  Number of       % of voting    
financial       price    date       Conversion voting          rights         
instrument                          period     rights                         
                                               instrument                     
                                               refers to                      
                                                                              
                                                               Nominal  Delta 
                                                                              
                                                                              
                                                                              
N/A                                                                           
                                                                              

 

Total (A+B+C)                                                                 
                                                                              
                                                                              
                                                                              
Number of voting rights             Percentage of voting rights               
                                                                              
   3,251,556                        5.06%                                     
                                                                              

 

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:                    
                                                                              
In the narrative below, the figures in [ ] indicate the amount of voting      
rights and the percentage held by each controlled undertaking where relevant. 
                                                                              
Baillie Gifford & Co, a discretionary investment manager, is the parent       
undertaking of an investment management group.                                
                                                                              
 Its wholly-owned subsidiary undertaking Baillie Gifford Overseas Limited     
[14,653; 0.02%] is also a discretionary investment manager.                   
                                                                              
Its wholly-owned subsidiary undertaking Baillie Gifford & Co Limited [282,174;
0.44%] is an OEIC Authorised Corporate Director and Unit Trust Manager which  
has delegated its discretionary investment management role to Baillie Gifford 
& Co.                                                                         
                                                                              
Its wholly-owned subsidiary undertaking Baillie Gifford Life Limited [831,871;
1.29%] is a life assurance company which procures discretionary investment    
management services from Baillie Gifford & Co in respect of its own account   
shareholdings.                                                                
                                                                              
                                                                              
                                                                              

 

Proxy Voting:                                                                 
                                                                              
                                                                              
                                                                              
10. Name of the proxy holder:                                             N/A 
                                                                              
                                                                              
                                                                              
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:                                                   
                                                                              
                                                                              
                                                                              
14. Contact name:                                    Gillian Wright           
                                                                              
                                                                              
                                                                              
15. Contact telephone number:                        0131 275 3041