| الدور | الشركة | البلد | الحالة | نطاق التاريخ |
|---|---|---|---|---|
| ضابط | COALBED SYSTEMS LTD | — | تم حلها | 31/05/2026 – 18/08/2012 |
| ضابط | COALBED SYSTEMS LTD | — | تم حلها | 31/05/2026 – 18/08/2012 |
| ضابط | INTELLIGENT DRILLING TOOLS LIMITED | — | نشط | 02/06/2026 – 18/08/2012 |
18/08/2012
resigned
18/06/2009
appointed
08/12/2008
appointed