| 52-109F2 - Certification of interim filings - CFO (E) | Nov 11, 2022 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | Nov 11, 2022 |  |
| 52-109F2 - Certification of interim filings - CFO (E) | Aug 12, 2022 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | Aug 12, 2022 |  |
| 52-109F2 - Certification of interim filings - CFO (E) | May 11, 2022 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | May 11, 2022 |  |