| Company | Timeline | Status | |
| Leen Gate Engineering Co. Limited Director • Director | 31 Mar 1991←25 Years→21 Feb 2017 | Active | |
| Leen Gate Engineering Co. Limited Secretary • Unreported | 31 Mar 1991←12 Years→12 Mar 2004 | Active | |
| Industrial Supplies & Services Limited Secretary • Unreported | 31 Jan 1991←2 Months→1 Apr 1991 | Active | |
