| Company | Timeline | Status | |
| KJSH Limited Director • Unreported | 9 Jul 2018←7 Years→Current | Active | |
J S Han Architectural Services Ltd Director • Architect | 9 Nov 2015←2 Years 1 Month→2 Jan 2018 | Dissolved | |
| Sung Wah Taoist Association Director • Architect | 20 Sep 1999←26 Years→Current | Active | |
