| 52-109F2 - Certification of interim filings - CEO (E) | 10 Nov 2020 |  |
| 52-109F2 - Certification of interim filings - CFO (E) | 10 Nov 2020 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | 13 May 2020 |  |
| 52-109F2 - Certification of interim filings - CFO (E) | 13 May 2020 |  |
| 52-109F2 - Certification of interim filings - CFO (E) | 13 Feb 2020 |  |
| 52-109F2 - Certification of interim filings - CEO (E) | 13 Feb 2020 |  |