Exhibit 12.1
CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, Carl Firth, certify that:
| 1) | I have reviewed this Amendment No. 1 to the annual report on Form 20-F of ASLAN Pharmaceuticals Limited (the “Company”); and |
| 2) | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
| Date: August 6, 2021 | By: | /s/ Carl Firth, Ph.D. | ||||
| Carl Firth, Ph.D. | ||||||
| Chief Executive Officer | ||||||
| (Principal Executive Officer) |
