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Exhibit 21.1
SUBSIDIARIES OF ION GEOPHYSICAL CORPORATION
Subsidiary | Jurisdiction |
Concept Systems Holdings Limited | Scotland |
Concept Systems Limited | Scotland |
Global Charter S.A. | Argentina |
GMG/AXIS, Inc. | Delaware |
GX Technology Canada, Ltd. | Canada |
GX Technology Corporation | Texas |
GX Technology de Venezuela C.A. | Venezuela |
GX Technology EAME. Limited. | UK |
GX Technology Sismica Brasil Ltda. | Brazil |
GX Technology Trinidad, Ltd. | West Indies |
HGS (India) Ltd. | India |
I/O Cayman Islands, Ltd. | Cayman Islands |
I/O China Holdings, Limited | Hong Kong |
I/O Exploration Products (U.K.), Inc. | Delaware |
I/O Exploration Products (U.S.A.), Inc. | Delaware |
I/O International Holdings, Ltd. | Cayman Islands |
I/O International, Ltd. | Cayman Islands |
I/O Luxembourg S.a.r.l. | Luxembourg |
I/O Marine Systems Limited | UK |
I/O Marine Systems, Inc. | Louisiana |
I/O Nevada, LLC | Delaware |
I/O Services CIS, LLC | Russia |
I/O Texas, LP | Delaware |
I/O U.K. Holdings Limited | Scotland |
I/O U.K., LTD. | UK |
“Inco” Industrial Components ‘s-Gravenhage B.V. | Netherlands |
Input/Output Canada, Ltd. | Canada |
IPOP Management, Inc. | Delaware |
Sensor Nederland B.V. | Netherlands |