| 52-109F2 - Certification of interim filings - CFO (E) | 09 Nov 2021 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | 09 Nov 2021 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | 11 May 2021 |  |
| 52-109F2 - Certification of interim filings - CFO (E) | 11 May 2021 |  |
| 52-109F2 - Certification of interim filings - CFO (E) | 09 Feb 2021 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | 09 Feb 2021 |  |