Exhibit 31.4
Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350,
As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
I, Michael Morrison, certify that:
| 1. | I have reviewed this report on Form 10-K of ION Geophysical Corporation. |
| 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: April 30, 2021 | |
| /s/ Michael Morrison | |
| Michael Morrison | |
| Executive Vice President and Chief Financial Officer (Principal Financial Officer) |