Common Contracts

WILMINGTON SAVINGS FUND SOCIETY, FSB, as Trustee, AND WILMINGTON SAVINGS FUND SOCIETY, FSB, as Collateral Agent FIRST SUPPLEMENTAL INDENTURE Dated as of April 20, 2021 to Indenture Dated as of April 28, 2016

First Supplemental Indenture • April 22nd, 2021 • Ion Geophysical Corp • Oil & gas field exploration services • New York

• Contract Type
  First Supplemental Indenture
• Filed
  April 22nd, 2021
• Company
  Ion Geophysical Corp
• Industry
  Oil & gas field exploration services
• Jurisdiction
  New York

THIS FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of April 20, 2021, is by and among ION Geophysical Corporation, a Delaware corporation (the “Issuer”), the Guarantors listed on the signature pages hereof, Wilmington Savings Fund Society, FSB, as Trustee (the “Trustee”) and Wilmington Savings Fund Society, FSB, as Collateral Agent (the “Collateral Agent”).

ION GEOPHYSICAL CORPORATION, THE GUARANTORS NAMED HEREIN, AND WILMINGTON SAVINGS FUND SOCIETY, FSB, as Trustee, AND WILMINGTON SAVINGS FUND SOCIETY, FSB, as Collateral Agent FIRST SUPPLEMENTAL INDENTURE Dated as of [●], 2021 to Indenture Dated as of...

First Supplemental Indenture • March 3rd, 2021 • I/O Marine Systems, Inc. • Oil & gas field exploration services • New York

• Contract Type
  First Supplemental Indenture
• Filed
  March 3rd, 2021
• Company
  I/O Marine Systems, Inc.
• Industry
  Oil & gas field exploration services
• Jurisdiction
  New York

THIS FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of [•], 2021, is by and among ION Geophysical Corporation, a Delaware corporation (the “Issuer”), the Guarantors listed on the signature pages hereof, Wilmington Savings Fund Society, FSB, as Trustee (the “Trustee”) and Wilmington Savings Fund Society, FSB, as Collateral Agent (the “Collateral Agent”).