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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 KTuRKzBN3b4RyB2uKMi3IlczRsGdgKd5bn7zmMQPllTYiytjOrDTigrtcWhIN0pI
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<SEC-DOCUMENT>0001140361-03-005108.txt : 20031223
<SEC-HEADER>0001140361-03-005108.hdr.sgml : 20031223
<ACCEPTANCE-DATETIME>20031223165858
ACCESSION NUMBER:		0001140361-03-005108
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031223
FILED AS OF DATE:		20031223

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ICO INC
		CENTRAL INDEX KEY:			0000353567
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS PRODUCTS, NEC [3089]
		IRS NUMBER:				760566682
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		5333 WESTHEIMER ROAD
		STREET 2:		SUITE 600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056
		BUSINESS PHONE:		7133514100

	MAIL ADDRESS:	
		STREET 1:		5333 WESTHEIMER ROAD
		STREET 2:		SUITE 600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KNAPP A JOHN JR
		CENTRAL INDEX KEY:			0001220920

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08327
		FILM NUMBER:		031071700

	BUSINESS ADDRESS:	
		STREET 1:		C/O ANDOVER GROUP
		STREET 2:		910 TRAVIS ST STE 1900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		7133514100

	MAIL ADDRESS:	
		STREET 1:		910 TRAVIS ST STE 1900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
<periodOfReport>2003-12-23</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000353567</issuerCik>
        <issuerName>ICO INC</issuerName>
        <issuerTradingSymbol>ICOC</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001220920</rptOwnerCik>
            <rptOwnerName>KNAPP A JOHN JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>910 TRAVIS STREET, SUITE 1900</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77002</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle></officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeTable>
<nonDerivativeTransaction>
<securityTitle>
<value>Common Stock</value>
</securityTitle>
<transactionDate>
<value>2003-12-23</value>
</transactionDate>
<deemedExecutionDate>
</deemedExecutionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>P</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionTimeliness>
<value></value>
</transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>9000</value>
</transactionShares>
<transactionPricePerShare>
<value>1.185</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>A</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>295293</value>
<footnoteId id="F1"/>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
<natureOfOwnership>
<value></value>
</natureOfOwnership>
</ownershipNature>
</nonDerivativeTransaction>
</nonDerivativeTable>
<footnotes>
<footnote id="F1">Individual owns 1,687,134 shares indirectly which are held by Travis Street Partners LLC</footnote>
</footnotes>
<remarks>Non-Employee Stock Options - Direct Ownership
Exercise price $2.05, expiration 5-3-2011, Common Stock, 5,000 Options
Exercise price $1.35, expiration 3-17-2012, Common Stock, 5,000 Options
Exercise price $1.195, expiration 3-3-2013, Common Stock, 5,000 Options</remarks>
<ownerSignature>
<signatureName>A. John Knapp</signatureName>
<signatureDate>2003-12-23</signatureDate>
</ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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