| 20-Mar-12 07:00 | RNS | Appointment of Group Head of Sales | Company Announcement - General |
| 08-Mar-12 07:00 | RNS | US Patent Grant | Company Announcement - General |
| 30-Nov-11 07:00 | RNS | Contract win | Company Announcement - General |
| 06-Jul-11 15:48 | RNS | Result of AGM | Results and Trading Reports |
| 13-Jun-11 07:00 | RNS | Annual Financial Report | Results and Trading Reports |
| 23-May-11 07:00 | RNS | Proposed Acquisition and Placing | Company Announcement - General |
| 09-May-11 16:40 | RNS | Second Price Monitoring Extn | Company Announcement - General |