| Company | Timeline | Status | |
| C.I.Electronics Limited Director • Director | 5 Jan 2024←1 Year 10 Months→Current | Active | |
| C.I. Systems Limited Director • General Management | 1 Jun 2004←21 Years→Current | Active | |
| Thermo Electron Weighing & Inspection Limited Director • General Manager | 1 Jul 1995←1 Year 1 Month→22 Aug 1996 | Active | |
| OLD Forge Management Company Limited Director • Managing Director | 18 Nov 1991←6 Years→26 Mar 1998 | Active | |
| Ci Precision Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
