Holding(s) in Company

Keller Group plc ("the Company")                        

Keller Group plc was today notified that, as at 5th June 2006, Barclays PLC
through the following legal entities has a notifiable interest in 4,084,284
ordinary shares in the Company, which represents 6.2476% of its issued ordinary
share capital.

Legal Entity               Holding                   Percentage Held           
                                                                               
Barclays Capital           363,799                   0.5565                    
Securities Ltd                                                                 
                                                                               
Gerrard Ltd                57,795                    0.0884                    
                                                                               
Barclays Life Assurance Co 457,704                   0.7001                    
Ltd                                                                            
                                                                               
Barclays Global Investors  3,204,986                 4.9026                    
Ltd