| الدور | الشركة | البلد | الحالة | نطاق التاريخ |
|---|---|---|---|---|
| ضابط | ULTRASEAL INTERNATIONAL GROUP LIMITED | 🇬🇧United Kingdom | نشط | 06/01/2026 – 05/12/2025 |
| ضابط | QH INTERNATIONAL LIMITED | 🇬🇧United Kingdom | نشط | 05/01/2026 – 05/12/2025 |
| ضابط | QH CHEMICAL LIMITED | 🇬🇧United Kingdom | تم حلها | 17/12/2025 – حاضر |
| ضابط | QH HOLDINGS LIMITED | 🇬🇧United Kingdom | تم حلها | 17/12/2025 – حاضر |
| ضابط | QUAKER HOUGHTON HOLDINGS LIMITED | 🇬🇧United Kingdom | نشط | 05/01/2026 – 05/12/2025 |
| ضابط | PULSE ELECTRONICS GMBH | 🇩🇪Germany | نشط | 10/12/2025 – حاضر |
05/12/2025
resigned
01/10/2019
appointed
19/07/2011
appointed