-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001476063-10-000005.txt : 20100510
<SEC-HEADER>0001476063-10-000005.hdr.sgml : 20100510
<ACCEPTANCE-DATETIME>20100510115358
ACCESSION NUMBER:		0001476063-10-000005
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20100510
DATE AS OF CHANGE:		20100510
EFFECTIVENESS DATE:		20100510

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AEI Serious Materials Investments II, LLC
		CENTRAL INDEX KEY:			0001476063
		IRS NUMBER:				272159920
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-140927
		FILM NUMBER:		10814942

	BUSINESS ADDRESS:	
		STREET 1:		311 S WACKER DRIVE
		STREET 2:		SUITE 1650
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		804-378-1110

	MAIL ADDRESS:	
		STREET 1:		311 S WACKER DRIVE
		STREET 2:		SUITE 1650
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AEI SerMat Investments II, LLC
		DATE OF NAME CHANGE:	20091103
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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        <entityName>AEI Serious Materials Investments II, LLC</entityName>
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            <street1>311 S WACKER DRIVE</street1>
            <street2>SUITE 1650</street2>
            <city>CHICAGO</city>
            <stateOrCountry>IL</stateOrCountry>
            <stateOrCountryDescription>ILLINOIS</stateOrCountryDescription>
            <zipCode>60606</zipCode>
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        <issuerPhoneNumber>804-378-1110</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
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            <value>2009</value>
        </yearOfInc>
    </primaryIssuer>

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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>N/A</firstName>
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            </relatedPersonName>
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                <street2>Suite 1650</street2>
                <city>Chicago</city>
                <stateOrCountry>IL</stateOrCountry>
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                <zipCode>60606</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification>Managing Member</relationshipClarification>
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    </relatedPersonsList>

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            <investmentFundInfo>
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                <is40Act>false</is40Act>
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        </industryGroup>
        <issuerSize>
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                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Tom Tang</recipientName>
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                <foreignSolicitation>false</foreignSolicitation>
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                    <state>SD</state>
                    <description>SOUTH DAKOTA</description>
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                <foreignSolicitation>false</foreignSolicitation>
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            <recipient>
                <recipientName>Patrick Thurman</recipientName>
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                <statesOfSolicitationList>
                    <state>SD</state>
                    <description>SOUTH DAKOTA</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Peter Han</recipientName>
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                <associatedBDName>First Allied Securities Inc.</associatedBDName>
                <associatedBDCRDNumber>32444</associatedBDCRDNumber>
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                <statesOfSolicitationList>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Edward Yoon</recipientName>
                <recipientCRDNumber>2408137</recipientCRDNumber>
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                    <state>CA</state>
                    <description>CALIFORNIA</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>8515705</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>91</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>424738</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>$424,738.03 was taken as markup by Advanced Equities Inc. with the remaining $8,090,967.08 used to make investments in Serious Materials Inc.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>AEI Serious Materials Investments II, LLC</issuerName>
                <signatureName>Alex Winks</signatureName>
                <nameOfSigner>Alex Winks</nameOfSigner>
                <signatureTitle>Authorized Signatory</signatureTitle>
                <signatureDate>2010-05-10</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----