| Company | Timeline | Status | |
| Purolite (Int.) Ltd Director • Director | 15 Dec 1999←21 Years→1 Dec 2021 | Active | |
| Bro-Tech Limited Director • Chairman | 18 Jul 1991←30 Years→1 Dec 2021 | Active | |
| Purolite Ltd Director • Chairman | 18 Jul 1991←30 Years→1 Dec 2021 | Active | |
