| 31st Aug 2016 7:00 am | RNS | Interim Results for six months ended 30 June 2016 | 
                                                                            
                                            | 1st Jul 2016 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 1st Jul 2016 7:00 am | RNS | Total Voting Rights Update | 
                                                                            
                                            | 28th Jun 2016 7:00 am | RNS | Additional Listing | 
                                                                            
                                            | 7th Jun 2016 11:03 am | RNS | Date of Interim Results and Analysts Presentation | 
                                                                            
                                            | 23rd May 2016 4:45 pm | RNS | Share Dividend Circular | 
                                                                            
                                            | 18th May 2016 7:00 am | RNS | Quarterly Management Statement | 
                                                                            
                                            | 29th Apr 2016 3:03 pm | RNS | Final Dividend | 
                                                                            
                                            | 29th Apr 2016 3:02 pm | RNS | Results of Extraordinary General Meeting | 
                                                                            
                                            | 29th Apr 2016 3:02 pm | RNS | Results of Annual General Meeting | 
                                                                            
                                            | 15th Apr 2016 7:00 am | RNS | Annual Financial Report 2015 | 
                                                                            
                                            | 29th Mar 2016 4:27 pm | RNS | AGM and EGM Convening Notices and Proxy Forms | 
                                                                            
                                            | 24th Mar 2016 7:00 am | RNS | Annual Results for financial year 2015 | 
                                                                            
                                            | 10th Mar 2016 7:00 am | RNS | Completion of Acquisitions | 
                                                                            
                                            | 8th Mar 2016 4:27 pm | RNS | TR-1: Notification of Major Interest in Shares | 
                                                                            
                                            | 26th Feb 2016 7:00 am | RNS | Disclosure of Home Member State | 
                                                                            
                                            | 29th Jan 2016 7:00 am | RNS | Date of Annual Results and Analysts Presentation | 
                                                                            
                                            | 22nd Jan 2016 4:15 pm | RNS | TR-1: Notification of Major Interest in Shares | 
                                                                            
                                            | 18th Jan 2016 4:51 pm | RNS | TR-1: Notification of Major Interest in Shares | 
                                                                            
                                            | 15th Jan 2016 4:25 pm | RNS | TR-1: Notification of Major Interest in Shares | 
                                                                            
                                            | 21st Dec 2015 10:08 am | RNS | Grant of Share Awards under LTIP | 
                                                                            
                                            | 14th Dec 2015 4:10 pm | RNS | TR-1: Notification of Major Interest in Shares | 
                                                                            
                                            | 3rd Dec 2015 10:24 am | RNS | TR-1: Notification of Major Interest in Shares | 
                                                                            
                                            | 17th Nov 2015 7:00 am | RNS | Interim Management Statement | 
                                                                            
                                            | 2nd Nov 2015 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 2nd Nov 2015 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 2nd Nov 2015 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 2nd Nov 2015 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 2nd Nov 2015 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 2nd Nov 2015 7:00 am | RNS | Total Voting Rights Update | 
                                                                            
                                            | 28th Oct 2015 7:00 am | RNS | Additional Listing | 
                                                                            
                                            | 26th Oct 2015 7:00 am | RNS | Financial close for new transportation PPP Project | 
                                                                            
                                            | 21st Sep 2015 4:00 pm | RNS | Scrip Dividend Circular | 
                                                                            
                                            | 10th Sep 2015 11:30 am | RNS | Interim Financial Report 6 months to 30 June 2015 | 
                                                                            
                                            | 1st Sep 2015 7:04 am | RNS | Grant of Share Awards under LTIP | 
                                                                            
                                            | 28th Aug 2015 7:00 am | RNS | Increase in Interim Dividend | 
                                                                            
                                            | 28th Aug 2015 7:00 am | RNS | Interim Results for 6 months ended 30 June 2015 | 
                                                                            
                                            | 3rd Aug 2015 7:00 am | RNS | Total Voting Rights Update | 
                                                                            
                                            | 29th Jul 2015 7:00 am | RNS | Acquisition of two educational PPP projects in UK | 
                                                                            
                                            | 7th Jul 2015 1:49 pm | RNS | Holding(s) in Company |