Treasury Stock

21 May 2009

Keller Group plc (the Company)

Transfer of Shares from Treasury to satisfy Performance Share Plan awards

Keller Group plc announces that on 20 May 2009, it transferred 5,000 of its
ordinary shares of 10p each out of Treasury to satisfy awards under the Keller
Group Performance Share Plan 2004 previously approved by shareholders.

Following the transfer of these shares, the Company holds 2,312,000 of its
shares in Treasury and has 64,081,235 ordinary shares in issue excluding
Treasury shares.

Jackie Holman
Company Secretary