| Company | Timeline | Status | |
| W.Steven Limited Secretary • Agronomist | 20 May 2003←14 Years→27 Apr 2018 | Active | |
| W.Steven Limited Secretary • Seeds Operation Manager | 27 Apr 2003←1 Day→27 Apr 2003 | Active | |
| W.Steven Limited Director • Agronomist | 14 Nov 2002←15 Years→27 Apr 2018 | Active | |
