| Full year results | 11-Apr-2013 | 07:00 | RNS |
| Notice of Results | 05-Apr-2013 | 10:53 | RNS |
| Conditional Disposal of Total Carbide Limited | 14-Mar-2013 | 07:00 | RNS |
| Possible sale of Subsidiary | 04-Mar-2013 | 08:33 | RNS |
| Holding(s) in Company | 18-Feb-2013 | 15:36 | RNS |
| Trading update | 01-Feb-2013 | 07:00 | RNS |
| Holding(s) in Company | 28-Jan-2013 | 07:00 | RNS |
| Holding(s) in Company | 10-Jan-2013 | 16:51 | RNS |
| Director/PDMR Shareholding | 28-Nov-2012 | 07:00 | RNS |
| Director/PDMR Shareholding | 01-Oct-2012 | 15:16 | RNS |
| Director/PDMR Shareholding | 13-Sep-2012 | 13:26 | RNS |
| Half year results | 13-Sep-2012 | 07:00 | RNS |
| Notice of Results | 31-Aug-2012 | 09:10 | RNS |
| Holding in Company | 23-Aug-2012 | 16:37 | RNS |
| Director/PDMR Shareholding | 21-Aug-2012 | 16:09 | RNS |