| Company | Timeline | Status | |
| Precision Ball & Gauge Co. Limited Director • Engineer | 23 Sep 2009←16 Years→Current | Active | |
| Precision Ball & Gauge Co. Limited Director • Engineer | 23 Sep 2009←15 Years→3 Apr 2025 | Active | |
| GMS Ball Company Limited Director • Precision Engineer | 19 Jan 1999←24 Years→24 Aug 2023 | Active | |
| GMS Ball Company Limited Secretary • Precision Engineer | 19 Jan 1999←24 Years→24 Aug 2023 | Active | |
