| Date | Source | Headline | |
|---|---|---|---|
| 28th Apr 2008 | 5:40 pm | RNS | Result of AGM |
| 9th Apr 2008 | 2:33 pm | RNS | Holding(s) in Company |
| 3rd Apr 2008 | 12:30 pm | RNS | Issue of Equity |
| 26th Mar 2008 | 7:01 am | RNS | Directorate Changes |
| 5th Mar 2008 | 2:11 pm | RNS | Holding(s) in Company |
| 5th Mar 2008 | 10:32 am | RNS | Issue of Equity |
| 22nd Feb 2008 | 11:15 am | RNS | Issue of Equity |
| 21st Feb 2008 | 2:51 pm | RNS | Holding(s) in Company |
| 19th Feb 2008 | 7:00 am | RNS | Preliminary Results |
| 21st Jan 2008 | 4:09 pm | RNS | Notice of Results |
| 28th Dec 2007 | 2:48 pm | RNS | Director/PDMR Shareholding |
| 12th Dec 2007 | 10:06 am | RNS | Issue of Equity |
| 11th Dec 2007 | 3:33 pm | RNS | Holding(s) in Company |
| 15th Nov 2007 | 4:34 pm | RNS | Issue of Equity |
| 7th Nov 2007 | 12:11 pm | RNS | Director/PDMR Shareholding |
| 6th Nov 2007 | 11:19 am | RNS | Issue of Equity |
| 30th Oct 2007 | 12:00 pm | RNS | Holding(s) in Company |
| 26th Oct 2007 | 1:42 pm | RNS | Holding(s) in Company |
| 23rd Oct 2007 | 9:48 am | RNS | Holding(s) in Company |
| 18th Oct 2007 | 7:01 am | RNS | DGC Flow Loop Update |
| 1st Oct 2007 | 5:07 pm | RNS | Holding(s) in Company |
| 21st Sep 2007 | 7:01 am | RNS | Interim Results |
| 14th Sep 2007 | 7:00 am | RNS | Change of Adviser |
| 17th Aug 2007 | 6:04 pm | RNS | AIM Rule 26 |
| 10th Jul 2007 | 3:56 pm | RNS | Notice of Results |
| 20th Jun 2007 | 6:25 pm | RNS | Holding(s) in Company |
| 20th Jun 2007 | 6:22 pm | RNS | Holding(s) in Company |
| 24th Apr 2007 | 5:09 pm | RNS | AGM Statement |
| 12th Apr 2007 | 9:36 am | RNS | Director/PDMR Shareholding |
| 9th Mar 2007 | 9:17 am | RNS | New Order Win |
| 9th Mar 2007 | 7:01 am | RNS | Preliminary Results |
| 1st Feb 2007 | 7:01 am | RNS | Gas Seals Agreement |
| 8th Jan 2007 | 12:34 pm | RNS | Exercise of Options |
| 8th Jan 2007 | 12:23 pm | RNS | Notice of Results |
| 2nd Jan 2007 | 7:01 am | RNS | Contract Win |
| 21st Dec 2006 | 4:45 pm | RNS | Board Change |
| 20th Dec 2006 | 11:37 am | RNS | Voting Rights and Capital |
| 7th Dec 2006 | 3:45 pm | RNS | R&D Tax Credits |
| 19th Sep 2006 | 7:01 am | RNS | DTI Grant and First Shipment |
| 19th Sep 2006 | 7:01 am | RNS | Interim Results |
| 7th Sep 2006 | 7:03 am | RNS | Contract with Advantica |
| 25th Aug 2006 | 8:49 am | RNS | Notice of Results |
| 9th May 2006 | 10:47 am | RNS | Holding(s) in Company |
| 2nd May 2006 | 5:19 pm | RNS | Result of AGM |
| 27th Apr 2006 | 10:00 am | RNS | Issue of Equity |
| 24th Apr 2006 | 10:04 am | RNS | Directorate Change |
| 11th Apr 2006 | 7:00 am | RNS | Grant of Options |
| 3rd Apr 2006 | 7:01 am | RNS | Directorate Change |
| 29th Mar 2006 | 7:02 am | RNS | Final Results |
| 6th Mar 2006 | 10:27 am | RNS | Notice of Results |
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