| Chairman | 1989 – 1994 |
| Board of Directors | 1989 – 1996 |
| Board of Directors | 1989 – 1994 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 1989 – 1996 |
| Board of Directors | 1989 – 1997 |
| Board of Directors | 1989 – 1996 |
| Board of Directors | 1989 – 1994 |
| Chairman | 1989 – 1997 |
| Board of Directors | 1989 – 1994 |
| Chairman | 1989 – 1989 |
| Deputy Chairman | 1989 – 1997 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 1989 – 1996 |
| Board of Directors | 1989 – 1997 |