Blocklisting - Interim Review

SCHEDULE 5

                             BLOCK LISTING RETURN                              

To: Listing Applications

UK Listing Authority

Financial Services Authority

25, The North Colonnade

Canary Wharf

London, E14 5HS

Please ensure the entries on this return are type

1. Name of company: Keller Group plc                                           

2. Name of scheme: Keller Group plc Approved Company Share Option Plan and     
Keller Group plc Unapproved Company Share Option Plan                          

3. Period of return: From 01/01/2007 to 30/06/2007                             

4.  Number and class of share(s) (amount  2,520,661 ordinary 10p shares        
    of stock/debt security) not issued    outstanding under block listing      
    under scheme at start of period       scheme.                              
                                                                               
                                          (1,180,161 ordinary 10p shares       
                                          outstanding under share option plans 
                                          (of which, 734,500 lapsed))          

5.  Number of shares issued/allotted      137,161                              
    under scheme during period:                                                

6.  Balance under block listing scheme    2,383,500                            
    not yet issued/allotted at end of                                          
    period                                                                     

7.  Number and class of share(s) (amount  3,000,000 10p Ordinary Shares        
    of stock/debt securities) originally  admitted in July 2002                
    listed and the date of admission;                                          

Please confirm total number of shares in issue at the end of the period in     
order for us to update our records:                                            
                                                                               
66,224,235                                                                     

Contact for queries: Keller Group plc   Address: 12th Floor, Capital House, 25 
                                        Chapel Street,                         
                                                                               
                                        London, NW1 5DH                        

Name: Mrs Jackie Holman                 Telephone: [phone]               

Person making return Name:………………………………………………….

Position:………………………………………………….Signature:……………………………………………