| Company | Timeline | Status | |
| Mitsubishi Chemical Methacrylates Limited Director • Company Director | 17 Jul 2007←7 Years→25 Jun 2015 | Active | |
| Red Lion Cement Limited Director • Unreported | 27 Aug 2004←21 Years→Current | Active | |
| BP Chemicals East China Investments Limited Director • General Manager | 1 Oct 2001←2 Years 6 Months→31 Mar 2004 | Dissolved | |
| Ineos World-Wide Technical Services Limited Director • General Manager | 30 Dec 1997←1 Year→30 Dec 1998 | Active | |
| Ineos Acetyls (Korea) Limited Director • Acetyls Business Gen Mgr | 1 Jan 1995←3 Years→30 Dec 1998 | Active | |
BP Korea Marketing Limited Director • Acetyls Business Gen Mgr | 1 Jan 1995←3 Years→30 Dec 1998 | Dissolved | |
