Attached files
| file | filename |
|---|---|
| EX-31.4 - EXHIBIT 31.4 - ION GEOPHYSICAL CORP | tm2114390d1_ex31-4.htm |
| 10-K/A - FORM 10-K/A - ION GEOPHYSICAL CORP | tm2114390d1_10ka.htm |
Exhibit 31.3
Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350,
As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
I, Christopher Usher, hereby 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/ Christopher Usher | |
| Christopher Usher | |
| President and Chief Executive Officer (Principal Executive Officer) |