| Chairman | 1990 – 2001 |
| Board of Directors | 1990 – 1992 |
| Board of Directors | 1990 – 1992 |
| Board of Directors | 1992 – 1995 |
| Deputy Chairman | 1990 – 1991 |
| Board of Directors | 1990 – 1992 |
| Board of Directors | 1990 – 2006 |
| Board of Directors | 1990 – 2006 |
| Board of Directors | 1990 – 1992 |
| Board of Directors | 1992 – 1992 |
| Board of Directors | 1990 – 1992 |
| Board of Directors | 2001 – 2006 |
| Chairman | 1992 – 1992 |
| Chairman | 1992 – 1995 |
| Board of Directors | 1990 – 2003 |
| Deputy Chairman | 1992 – 1992 |
| Chairman | 1990 – 1991 |
| Board of Directors | 1992 – 1995 |