| 4th Apr 2011 11:54 am | RNS | Re Options | 
                                                                            
                                            | 1st Apr 2011 11:01 am | RNS | Grant of Options | 
                                                                            
                                            | 3rd Mar 2011 12:37 pm | RNS | AGM Update | 
                                                                            
                                            | 27th Jan 2011 7:00 am | RNS | Preliminary results | 
                                                                            
                                            | 22nd Dec 2010 3:41 pm | RNS | Trading Update | 
                                                                            
                                            | 16th Aug 2010 10:19 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 12th Jul 2010 8:57 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 2nd Jul 2010 4:15 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 29th Jun 2010 4:00 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 28th Jun 2010 7:00 am | RNS | Half Yearly Report | 
                                                                            
                                            | 4th Mar 2010 12:44 pm | RNS | Result of AGM | 
                                                                            
                                            | 17th Feb 2010 4:47 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 29th Jan 2010 7:00 am | RNS | Preliminary Results | 
                                                                            
                                            | 25th Jun 2009 7:00 am | RNS | Half Yearly Report | 
                                                                            
                                            | 10th Jun 2009 7:00 am | RNS | Contract wins and trading update | 
                                                                            
                                            | 20th Apr 2009 2:46 pm | RNS | Dealings by Directors | 
                                                                            
                                            | 20th Apr 2009 10:35 am | RNS | Dealings by Directors | 
                                                                            
                                            | 20th Mar 2009 12:25 pm | RNS | AGM Statement and Trading Update | 
                                                                            
                                            | 9th Mar 2009 7:00 am | RNS | Letter To Shareholders | 
                                                                            
                                            | 17th Feb 2009 8:36 am | RNS | Contract win | 
                                                                            
                                            | 9th Feb 2009 2:38 pm | RNS | ?4.7m LED-based lighting contract | 
                                                                            
                                            | 29th Jan 2009 1:56 pm | RNS | Preliminary Results | 
                                                                            
                                            | 13th Nov 2008 7:00 am | RNS | ?1.5 million rail equipment contract | 
                                                                            
                                            | 6th Nov 2008 7:00 am | RNS | Contract win | 
                                                                            
                                            | 28th Oct 2008 7:00 am | RNS | Contract Win | 
                                                                            
                                            | 15th Oct 2008 7:00 am | RNS | Change of Adviser | 
                                                                            
                                            | 9th Oct 2008 9:08 am | RNS | Change of Adviser Name | 
                                                                            
                                            | 30th Sep 2008 3:30 pm | RNS | Resignation of director | 
                                                                            
                                            | 3rd Sep 2008 7:00 am | RNS | Contract win | 
                                                                            
                                            | 10th Jul 2008 7:00 am | RNS | London Underground contracts | 
                                                                            
                                            | 30th Jun 2008 7:00 am | RNS | Interim Results | 
                                                                            
                                            | 11th Mar 2008 3:32 pm | RNS | Result of AGM | 
                                                                            
                                            | 11th Mar 2008 12:00 pm | RNS | AGM Statement | 
                                                                            
                                            | 5th Mar 2008 8:32 am | RNS | Letter to Shareholders | 
                                                                            
                                            | 29th Feb 2008 7:00 am | RNS | Total Voting Rights | 
                                                                            
                                            | 18th Feb 2008 3:14 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 13th Feb 2008 4:25 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 7th Feb 2008 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 7th Feb 2008 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 29th Jan 2008 7:00 am | RNS | Final Results |