| Company | Timeline | Status | |
| Altek Chemical Engineering (2000) Limited Director • Industrial Water Treatment | 19 Apr 2001←24 Years→Current | Active | |
| Altek Chemical Engineering (2000) Limited Secretary • Industrial Water Treatment | 19 Apr 2000←25 Years→Current | Active | |
| Altek Chemical Engineering (2000) Limited Director • Industrial Water Treatment | 19 Apr 2000←9 Months→1 Feb 2001 | Active | |
