Director/PDMR Shareholding

5 September 2008

                       Keller Group plc (`the Company')                        

Keller Group plc announces that on 4 September 2008 Dr Wolfgang Sondermann, a
director of the Company, exercised an option over 32,000 ordinary 10p shares in
the Company (`Shares') at a total exercise price of one pound. He
simultaneously sold 12,000 Shares at 820 pence per share to meet the tax
liability arising on the option exercise. As a result of this transaction, Dr
Sondermann has a beneficial interest in 60,000 Shares and has conditional
options over a further 103,671 Shares.

Jackie Holman

Company Secretary