| Chairman | 2016 – 2018 |
| Board of Directors | 2016 – 2016 |
| Board of Directors | 2015 – 2016 |
| Board of Directors | 1998 – 2015 |
| Board of Directors | 1999 – 2005 |
| Chairman | 1998 – 2004 |
| Board of Directors | 1998 – 2015 |
| Board of Directors | 2015 – 2021 |
| Board of Directors | 2015 – 2016 |
| Board of Directors | 2020 – 2021 |
| Chairman | 2004 – 2015 |
| Board of Directors | 2016 – 2021 |
| Board of Directors | 1998 – 2015 |
| Deputy Chairman | 2020 – 2021 |
| Board of Directors | 2005 – 2015 |
| Board of Directors | 2017 – 2021 |
| Chairman | 2018 – 2021 |