EXHIBIT 21.1
SUBSIDIARIES OF ION GEOPHYSICAL CORPORATION
as of 12-31-2012
Subsidiary | Jurisdiction |
Beijing ION Geophysical Co., Ltd. | China |
Concept Systems Holdings Limited | Scotland |
Concept Systems Limited | Scotland |
GMG/AXIS, Inc. | Delaware |
GX Technology Australia Pty Ltd. | Australia |
GX Technology Canada, Ltd. | Canada |
GX Technology Corporation | Texas |
GX Technology EAME. Limited | UK |
GX Technology Imaging Services Limited | Egypt |
GX Technology Poland Sp. Z o.o. | Poland |
GX Technology Processamento de Dados Ltda. | Brazil |
GX Technology Sismica Brasil Ltda. | Brazil |
GX Technology Trinidad, Ltd. | West Indies |
I/O Cayman Islands, Ltd. | Cayman Islands |
I/O International, Ltd. | Cayman Islands |
I/O International Holdings, Ltd. | Cayman Islands |
I/O Luxembourg S.à r.l. | Luxembourg |
I/O Marine Systems Limited | UK |
I/O Marine Systems, Inc. | Louisiana |
I/O U.K., LTD. | UK |
I/O U.K. Holdings Limited | Scotland |
“Inco” Industrial Components ‘s-Gravenhage B.V. | Netherlands |
Input/Output Canada, Ltd. | Canada |
ION China Holdings, Limited | Hong Kong |
ION Exploration Products (U.S.A.), Inc. | Delaware |
ION Geophysical CIS LLC | Russia |
ION International Holdings L.P. | Bermuda |
ION International S.à r.l. | Luxembourg |
ION International Sales Limited | Cyprus |
IPOP Management, Inc. | Delaware |
Sensor Nederland B.V. | Netherlands |