| Company | Timeline | Status | |
| Aqua Management Limited Director • Water Technology Consultant | 18 Dec 1992←9 Years→1 Jan 2002 | Active | |
| Aqua-Refining Limited Secretary • Unreported | 31 Dec 1991←7 Years→3 Jun 1999 | Active | |
| Aqua-Refining Limited Director • Water Technology Consultant | 31 Dec 1991←10 Years→31 Mar 2002 | Active | |
