| 17th Aug 2009 3:07 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 10th Aug 2009 3:07 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 10th Aug 2009 11:44 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 4th Aug 2009 2:38 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 3rd Aug 2009 1:47 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 20th Jul 2009 7:00 am | RNS | Acquisition | 
                                                                            
                                            | 13th Jul 2009 3:41 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 9th Jul 2009 4:05 pm | RNS | Re Joint Venture | 
                                                                            
                                            | 6th Jul 2009 3:15 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 6th Jul 2009 11:47 am | RNS | Total Voting Rights | 
                                                                            
                                            | 29th Jun 2009 3:03 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 22nd Jun 2009 3:57 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 11th Jun 2009 8:21 am | RNS | Statement re Possible Offer | 
                                                                            
                                            | 5th Jun 2009 2:03 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 5th Jun 2009 9:38 am | RNS | Earth and Environmental seminar | 
                                                                            
                                            | 4th Jun 2009 10:45 am | RNS | Acquisition | 
                                                                            
                                            | 3rd Jun 2009 10:45 am | RNS | Acquisition | 
                                                                            
                                            | 2nd Jun 2009 4:12 pm | RNS | Blocklisting Interim Review | 
                                                                            
                                            | 1st Jun 2009 3:58 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 26th May 2009 2:49 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 19th May 2009 2:16 pm | RNS | Re Contract | 
                                                                            
                                            | 15th May 2009 2:02 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 14th May 2009 3:30 pm | RNS | AGM Statement | 
                                                                            
                                            | 14th May 2009 11:00 am | RNS | Directorate Change | 
                                                                            
                                            | 13th May 2009 7:00 am | RNS | Interim Management Statement | 
                                                                            
                                            | 11th May 2009 3:17 pm | RNS | Re Contract | 
                                                                            
                                            | 11th May 2009 1:39 pm | RNS | Annual Information Update | 
                                                                            
                                            | 7th May 2009 4:00 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 30th Apr 2009 11:51 am | RNS | Re Contract | 
                                                                            
                                            | 29th Apr 2009 1:40 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 21st Apr 2009 3:21 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 9th Apr 2009 4:02 pm | RNS | Annual Financial Report | 
                                                                            
                                            | 8th Apr 2009 3:31 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 8th Apr 2009 1:42 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 27th Mar 2009 3:26 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 24th Mar 2009 9:04 am | RNS | Acquisition | 
                                                                            
                                            | 23rd Mar 2009 3:40 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 17th Mar 2009 2:08 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 16th Mar 2009 4:34 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 13th Mar 2009 4:30 pm | RNS | Holding(s) in Company |