-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MiYpJf6RP58sFH4/D0M7exHx/HvfIoIVC1YK0hZTAEfmVJ+E3R77bL/Zb2XoVyUs
 kG/R6SKrT0FH+kLP8B1UUA==

<SEC-DOCUMENT>0001104659-07-076040.txt : 20071022
<SEC-HEADER>0001104659-07-076040.hdr.sgml : 20071022
<ACCEPTANCE-DATETIME>20071022114252
ACCESSION NUMBER:		0001104659-07-076040
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071019
FILED AS OF DATE:		20071022
DATE AS OF CHANGE:		20071022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STONE TAN CHINA ACQUISITION CORP.
		CENTRAL INDEX KEY:			0001390332
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				208387484

	BUSINESS ADDRESS:	
		STREET 1:		9191 TOWNE CENTER DRIVE
		STREET 2:		SUITE 410
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92122
		BUSINESS PHONE:		858-450-1505

	MAIL ADDRESS:	
		STREET 1:		9191 TOWNE CENTER DRIVE
		STREET 2:		SUITE 410
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92122

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STONE ROGER W
		CENTRAL INDEX KEY:			0001012346
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-52857
		FILM NUMBER:		071182587

	MAIL ADDRESS:	
		STREET 1:		BOX USA GROUP, INC.
		STREET 2:		2100 SANDERS ROAD, SUITE 200
		CITY:			NORTHBROOK
		STATE:			IL
		ZIP:			60062-6141
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-10-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001390332</issuerCik>
        <issuerName>STONE TAN CHINA ACQUISITION CORP.</issuerName>
        <issuerTradingSymbol>STTAU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001012346</rptOwnerCik>
            <rptOwnerName>STONE ROGER W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SUITE 1A, 11TH FLOOR, TOWER 1</rptOwnerStreet1>
            <rptOwnerStreet2>CHINA HONG KONG CITY, 33 CANTON ROAD,</rptOwnerStreet2>
            <rptOwnerCity>KOWLOON, HONG KONG</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Founders Warrants (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.50</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2480000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.50</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2011-10-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2480000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2480000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The founder warrants will become exercisable on the later of (i) October 15, 2008 and (ii) the completion by the issuer of a business combination with a target company.  The founder warrants are identical to the warrants issued by the Company pursuant to its registration statement on Form S-1 (File No. 333-142729), except for those differences described therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Roger W. Stone</signatureName>
        <signatureDate>2007-10-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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