| Current (7) |
| External Signatory | 2021 |
| Chief Auditor | 2020 |
| External Signatory | 2020 |
| External Signatory | 2020 |
| External Signatory | 2020 |
| External Signatory | 2020 |
| External Signatory | 2020 |
| Former (12) |
| External Signatory | 2020 – 2021 |
| External Signatory | 2022 – 2024 |
| External Signatory | 2022 – 2023 |
| External Signatory | 2021 – 2022 |
| External Signatory | 2020 – 2021 |
| External Signatory | 2020 – 2021 |
| External Signatory | 2020 – 2020 |
| External Signatory | 2021 – 2024 |
| External Signatory | 2020 – 2022 |
| External Signatory | 2020 – 2021 |
| External Signatory | 2021 – 2022 |
| External Signatory | 2020 – 2021 |