<SEC-DOCUMENT>0001104659-21-034358-index.html : 20210407
<SEC-HEADER>0001104659-21-034358.hdr.sgml : 20210407
<ACCEPTANCE-DATETIME>20210310140843
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001104659-21-034358
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210310

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ION GEOPHYSICAL CORP
		CENTRAL INDEX KEY:			0000866609
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL AND GAS FIELD EXPLORATION SERVICES [1382]
		IRS NUMBER:				222286646
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD
		STREET 2:		SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			770422855
		BUSINESS PHONE:		2819333339

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD
		STREET 2:		SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			770422855

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INPUT OUTPUT INC
		DATE OF NAME CHANGE:	19930328

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GX Geoscience Corporation, S. de R.L. de C.V.
		CENTRAL INDEX KEY:			0001841419
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			O5
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD., SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042
		BUSINESS PHONE:		2819333339

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD., SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ION EXPLORATION PRODUCTS (U.S.A.), INC.
		CENTRAL INDEX KEY:			0001600906
		IRS NUMBER:				760491394
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST BOULEVARD
		STREET 2:		SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042-2855
		BUSINESS PHONE:		281-552-3308

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST BOULEVARD
		STREET 2:		SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042-2855

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GX Technology Corp
		CENTRAL INDEX KEY:			0001600867
		IRS NUMBER:				760450115
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST SUITE 900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042
		BUSINESS PHONE:		2819333339

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST SUITE 900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			I/O MARINE SYSTEMS, INC.
		CENTRAL INDEX KEY:			0001600904
		IRS NUMBER:				720733230
		STATE OF INCORPORATION:			LA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST BOULEVARD
		STREET 2:		SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042-2855
		BUSINESS PHONE:		281.552.3308

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST BOULEVARD
		STREET 2:		SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042-2855
</SEC-HEADER>
<DOCUMENT>
<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
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