| Company | Timeline | Status | |
| International Institute For Conservation Of Historic And Artistic Works(The) Director • Administrator | 15 Jan 2001←6 Years→23 Jan 2007 | Active | |
| International Institute For Conservation Of Historic And Artistic Works(The) Director • Government Servant | 15 Jan 1993←3 Years→15 Jan 1996 | Active | |
| The TC Foundation Director • Government Servant | 1 Jan 1970←22 Years→12 May 1992 | Active | |
