| Company | Timeline | Status | |
| Summit Gauge Technologies Limited Director • Unreported | 6 Sep 2022←3 Years→Current | Active | |
| Summit Patterns Holdings Limited Director • Unreported | 5 Sep 2022←3 Years→Current | Active | |
| Summit Patternmaking Co. Limited Director • Teacher | 23 May 1991←34 Years→Current | Active | |
| Summit Patternmaking Co. Limited Secretary • Unreported | 23 May 1991←1 Year 5 Months→6 Nov 1992 | Active | |
