<SEC-DOCUMENT>0001213900-18-012274.txt : 20180907
<SEC-HEADER>0001213900-18-012274.hdr.sgml : 20180907
<ACCEPTANCE-DATETIME>20180907161557
ACCESSION NUMBER:		0001213900-18-012274
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180907
DATE AS OF CHANGE:		20180907

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SG BLOCKS, INC.
		CENTRAL INDEX KEY:			0001023994
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-LUMBER & OTHER CONSTRUCTION MATERIALS [5030]
		IRS NUMBER:				954463937
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-53033
		FILM NUMBER:		181060327

	BUSINESS ADDRESS:	
		STREET 1:		195 MONTAGUE STREET, 14TH FLOOR
		CITY:			BROOKLYN
		STATE:			NY
		ZIP:			11201
		BUSINESS PHONE:		(646) 240-4235

	MAIL ADDRESS:	
		STREET 1:		195 MONTAGUE STREET, 14TH FLOOR
		CITY:			BROOKLYN
		STATE:			NY
		ZIP:			11201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDSI HOLDINGS INC
		DATE OF NAME CHANGE:	19990114

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PC411 INC
		DATE OF NAME CHANGE:	19961001

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Galvin Paul M.
		CENTRAL INDEX KEY:			0001532974

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	MAIL ADDRESS:	
		STREET 1:		C/O SG BLOCKS, INC.
		STREET 2:		400 MADISON AVENUE, SUITE 16C
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sc13d0918a2galvin_sgblocks.htm
<DESCRIPTION>AMENDMENT NO. 2 TO SCHEDULE 13D
<TEXT>
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     <TITLE></TITLE>
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<P STYLE="margin: 0"></P>

<!-- Field: Rule-Page --><DIV ALIGN="LEFT" STYLE="margin-top: 0; margin-bottom: 0"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid; width: 100%">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SECURITIES
AND EXCHANGE COMMISSION</B><BR>
<B>WASHINGTON, DC 20549</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><B>SCHEDULE
13D</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Rule
13d-101)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><B>INFORMATION
TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13</B></FONT><B><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">d<FONT STYLE="text-transform: uppercase">-1(</FONT>a<FONT STYLE="text-transform: uppercase">)
AND </FONT></FONT></B><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><BR>
<FONT STYLE="text-transform: uppercase"><B>AMENDMENTS THERETO FILED PURSUANT TO RULE 13</B></FONT><B>d<FONT STYLE="text-transform: uppercase">-2(</FONT>a<FONT STYLE="text-transform: uppercase">)</FONT></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Under
the Securities Exchange Act of 1934</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Amendment
No. 2)*</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: center; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SG
    BLOCKS, INC.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; text-align: center; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Name
    of Issuer)</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; text-align: center; font: 10pt Times New Roman, Times, Serif; text-indent: 0">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; text-align: center; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Common
    Stock, par value $0.01 per share</B></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; font: 10pt Times New Roman, Times, Serif; text-align: center; text-indent: 0"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Title
                                         of Class of Securities)</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; text-align: center; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>78418A
    307</B></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; font: 10pt Times New Roman, Times, Serif; text-align: center; text-indent: 0"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(CUSIP
                                         Number)</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; font: 10pt Times New Roman, Times, Serif; text-align: center; text-indent: 0"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Paul
                                         M. Galvin</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>c/o
        SG Blocks, Inc.</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>195
        Montague Street, 14th Floor</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Brooklyn,
        NY 11201</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(646)
        240-4235</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; font: 10pt Times New Roman, Times, Serif; text-align: center; text-indent: 0"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>With
                                         a copy to</U>:</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>David
        D. Watson</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Thompson
        Hine LLP</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3900
        Key Center</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>127
        Public Square</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Cleveland,
        Ohio 44114</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(216)
        566-5500</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Name,
        Address and Telephone Number of Person<BR>
        Authorized to Receive Notices and Communications)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; text-align: center; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; text-align: center; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>August
    16, 2018</B></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; text-align: center; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Date
    of Event Which Requires Filing of this Statement)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule
13D, and is filing this schedule because of &sect;&sect; 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box &#9744;.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Note</I>:
Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. <I>See
</I>&sect; 240.13d-7 for other parties to whom copies are to be sent.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*
The remainder of this cover page shall be filled out for a reporting person&rsquo;s initial filing on this form with respect to
the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided
in a prior cover page.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
information required on the remainder of this cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section
18 of the Securities Exchange Act of 1934 (&ldquo;Act&rdquo;) or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, <I>see</I> the <I>Notes</I>).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 33%; border: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No. 78418A 307</FONT></TD>
    <TD STYLE="width: 34%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: center; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13D</B></FONT></TD>
    <TD STYLE="width: 33%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: right; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Page
    2 of 7 Pages</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 5%; border: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD STYLE="width: 87%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAME
                                         OF REPORTING PERSON</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Paul
        M. Galvin</B></FONT></P></TD>
    <TD STYLE="width: 8%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
                                         THE APPROPRIATE BOX IF A MEMBER OF A GROUP</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
    &#9744;<BR>
    (b) &#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
                                         USE ONLY</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
                                         OF FUNDS</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PF;
        AF; OO</B></FONT></P></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
                                         IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
                                         OR PLACE OF ORGANIZATION</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>United
        States of America</B></FONT></P></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD ROWSPAN="4" STYLE="width: 15%; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-bottom: 8pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF <BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD STYLE="vertical-align: top; width: 6%; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 79%; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                         VOTING POWER</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>421,832(1)</B></FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                         VOTING POWER</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10,144(2)</B></FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                         DISPOSITIVE POWER</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>421,832(1)</B></FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;10</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                         DISPOSITIVE POWER</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10,144(2)</B></FONT></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
                                         AMOUNT BENEFICIALLY OWNED BY REPORTING PERSON</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>431,976(1)(2)</B></FONT></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 5%; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="width: 87%; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
                                         IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P></TD>
    <TD STYLE="width: 8%; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
                                         OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9.3%(3)</B></FONT></P></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                         OF REPORTING PERSON</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>IN</B></FONT></P></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; border-right: black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)
Includes 396,832 shares of Common Stock that may be acquired through the exercise of stock options (including 38,096 shares issuable
upon the exercise of stock options vesting within 60 days of the date of this Schedule 13D) and 25,000 shares of Common Stock
held by Mr. Galvin personally.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)
Includes 10,144 shares held by TAG Partners, LLC (&ldquo;TAG&rdquo;), an investment partnership formed for the purpose of investing
in SG Blocks, Inc. Mr. Galvin is a managing member of and has a controlling interest in TAG. Mr. Galvin may be deemed to beneficially
own the shares of Common Stock owned by TAG. Mr. Galvin specifically disclaims beneficial ownership of the shares of Common Stock
held by TAG, except to the extent of his pecuniary interest therein, and this shall not be deemed to be an admission that Mr.
Galvin is a beneficial owner of such shares of Common Stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)
All percentages reported herein are calculated based upon an aggregate of 4,260,041 shares of Common Stock outstanding as of August
10, 2018, as reported on the Company&rsquo;s Quarterly Report on Form 10-Q, filed on August 14, 2018.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 33%; border: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No. 78418A 307</FONT></TD>
    <TD STYLE="width: 34%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: center; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13D</B></FONT></TD>
    <TD STYLE="width: 33%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: right; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Page
    3 of 7 Pages</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Amendment No. 2 to Schedule 13D (&ldquo;Amendment No. 2&rdquo;) amends and restates the information set forth in the Schedule
13D filed by TAG, Paul M. Galvin and Joseph Tacopina with the U.S. Securities and Exchange Commission (the &ldquo;SEC&rdquo;)
on November 18, 2011 (the &ldquo;Original 13D&rdquo;), as subsequently amended by Amendment No. 1, filed with the SEC on November
20, 2017 (&ldquo;Amendment No. 1&rdquo; and, together with the Original 13D, the &ldquo;Schedule 13D&rdquo;) relating to their
ownership interests in the common stock, par value $0.01 per share (the &ldquo;Common Stock&rdquo;) of SG Blocks, Inc., a Delaware
corporation (the &ldquo;Company&rdquo;). This Amendment No. 2 is being filed solely on behalf of Mr. Galvin, due to changes in
his ownership interest in the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
1. Security and Issuer.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Amendment No. 2 relates to the Common Stock of the Company. The Company&rsquo;s principal executive offices are located at 195
Montague Street, 14th Floor, Brooklyn, NY 11201.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
2. Identity and Background.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
This Schedule 13D is filed by Paul M. Galvin, the Chief Executive Officer and Chairman of the Company. Mr. Galvin has a controlling
interest in TAG due to his role as one of its managing members and, as such, may be deemed to have voting power and dispositive
power over the Common Stock owned by TAG. Mr. Galvin specifically disclaims beneficial ownership of the shares of Common Stock
held by TAG, except to the extent of his pecuniary interest therein.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
The principal business address of Mr. Galvin is c/o SG Blocks, Inc., 195 Montague Street, 14th Floor, Brooklyn, NY 11201.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
Mr. Galvin&rsquo;s principal occupation is serving as the Chief Executive Officer and Chairman of the Board of Directors of the
Company; he also serves as a managing member of TAG. TAG was formed for the purpose of holding securities, including the securities
of SG Building Blocks, Inc. (formerly known as SG Blocks, Inc. (&ldquo;SG Building&rdquo;)).&nbsp;&nbsp;On November 4, 2011, CDSI
Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of the Company (&ldquo;Merger Sub&rdquo;), merged with and
into SG Building (defined in Item 3 as the &ldquo;Merger&rdquo;).&nbsp;&nbsp;Upon consummation of the Merger, SG Building became
a wholly owned subsidiary and principal operating business of the Company.&nbsp;The Merger is further described in Item 3.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
During the last five years, Mr. Galvin has not been convicted in a criminal proceeding (excluding traffic violations and similar
misdemeanors).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
During the last five years, Mr. Galvin has not been a party to a civil proceeding of a judicial or administrative body of competent
jurisdiction nor, as a result of such proceeding, was or is subject to a judgment, decree or final order enjoining future violations
of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect
to such laws.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
Mr. Galvin is a citizen of the United States of America.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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    <TD STYLE="width: 33%; border: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No. 78418A 307</FONT></TD>
    <TD STYLE="width: 34%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: center; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13D</B></FONT></TD>
    <TD STYLE="width: 33%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: right; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Page
    4 of 7 Pages</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
3. Source and Amount of Funds or Other Consideration.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The shares held by
TAG were received in connection with that certain Merger Agreement and Plan of Reorganization, dated July 27, 2011 (the &ldquo;Merger
Agreement&rdquo;), by and among the Company, Merger Sub, SG Building and certain stockholders of SG Building, pursuant to which
Merger Sub merged with and into SG Building (the &ldquo;Merger&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
the terms of the Merger Agreement, upon consummation of the Merger, each share of common stock of SG Building outstanding immediately
prior to the closing of the Merger was converted into the right to receive 20.1851851852 shares of Former Common Stock, as defined
below. Under the terms of the Merger Agreement, fractional shares were rounded up to the next whole share. Accordingly, the Company
issued 2,658,127 shares of Former Common Stock (adjusted for rounding) to TAG in consideration of the 131,687 shares of SG Building
common stock held by TAG. All stock options previously granted to Mr. Galvin in connection with the Merger were thereafter cancelled
in connection with the Company&rsquo;s emergence from bankruptcy, as described below.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company and its subsidiaries voluntarily filed for Chapter 11 bankruptcy on October 15, 2015, from which the Company emerged on
June 30, 2016. In connection with the emergence, all previously issued and outstanding shares of the Company&rsquo;s common stock
(the &ldquo;Former Common Stock&rdquo;) were deemed discharged, cancelled and extinguished, and, pursuant to the bankruptcy plan
of reorganization (the &ldquo;Plan&rdquo;), the Company issued new Common Stock to the holders of Former Common Stock. TAG received
10,144 shares of Common Stock, on a post-reverse stock split basis. In accordance with the Plan, all stock options granted by
the Company prior to June 30, 2016 were cancelled.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the SG Blocks, Inc. Stock Incentive Plan (the &ldquo;Incentive Plan&rdquo;), Mr. Galvin has been granted 476,000 options by
the Company as consideration for his roles as Chief Executive Officer and Chairman of the Company. As of the date of this Amendment
No. 2, 396,832 of such options are currently exercisable or will be exercisable within 60 days.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
June 27, 2017, in connection with the Company&rsquo;s public offering of Common Stock pursuant to the Registration Statement on
Form S-1 filed with the SEC on February 6, 2017 and effective as of June 21, 2017 (the &ldquo;Public Offering&rdquo;), Mr. Galvin
used personal funds to acquire 20,000 shares of Common Stock at a price of $5.00 per share, for aggregate consideration of approximately
$100,000. No borrowed funds were used in the purchase of such shares.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
August 16, 2018, Mr. Galvin acquired 2,500 shares of Common Stock pursuant to an open market purchase at a price of $4.1492 per
share, for aggregate consideration of approximately $10,373. On August 17, 2018, Mr. Galvin acquired an additional 2,500 shares
of Common Stock pursuant to an open market purchase at a price of $4.139 per share, for aggregate consideration of approximately
$10,348. The source of the purchase price was Mr. Galvin&rsquo;s personal funds. No borrowed funds were used in the purchase of
such shares.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
4. Purpose of Transaction. </B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mr.
Galvin acquired the shares of Common Stock reported in this Amendment No. 2 for investment purposes and as part of his compensation
as an officer and director of the Company. Mr. Galvin may continue to be granted stock options or other equity compensation as
part of his compensation as the Chief Executive Officer and Chairman of the Company. He may acquire additional securities of the
Company or dispose of additional securities of the Company at any time and from time to time in the open market or otherwise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Except
for transactions in Mr. Galvin&rsquo;s capacity as an officer or director of the Company and as set forth in this Amendment No.
2, Mr. Galvin has no present plans or proposals that would result in any of the actions described in paragraphs (a) through (j)
of Item 4 of Schedule 13D. Mr. Galvin reserves the right in the future to formulate any such plans or proposals, and to take any
actions with respect to his investement in the Company, including any or all of the actions described in paragraphs (a) through
(j) of Item 4 of Schedule 13D.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 33%; border: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No. 78418A 307</FONT></TD>
    <TD STYLE="width: 34%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: center; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13D</B></FONT></TD>
    <TD STYLE="width: 33%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: right; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Page
    5 of 7 Pages</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
5. Interest in Securities of the Issuer.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)<B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B>As
of the date hereof, Mr. Galvin may be deemed to beneficially own, in the aggregate, 431,976 shares of Common Stock, which represents
approximately 9.3% of the Company&rsquo;s outstanding shares of Common Stock. This number includes 25,000 shares of Common Stock
held by Mr. Galvin directly, 396,832 options granted to Mr. Galvin by the Company that are or will be exercisable within 60 days
of the date of this Amendment No. 2, and 10,144 shares of Common Stock held by TAG, over which Mr. Galvin has shared voting and
dispositive power.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mr.
Galvin&rsquo;s percentage ownership of Common Stock set forth in this Amendment No. 2 is based upon an aggregate of 4,260,041
shares of Common Stock outstanding as of August 10, 2018, as reported on the Company&rsquo;s Quarterly Report on Form 10-Q, filed
on August 14, 2018.&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mr.
Galvin has sole voting and dispositive power over 421,832 shares of Common Stock held by him, including 396,832 options granted
to Mr. Galvin by the Company that are or will be exercisable within 60 days of the date of this Amendment No. 2. Mr. Galvin has
shared voting and dispositive power over the 10,144 shares of Common Stock held by TAG through his position as one of the managing
members of TAG.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On
August 16, 2018, Mr. Galvin acquired 2,500 shares of Common Stock pursuant to an open market purchase at a price of $4.1492 per
share, for aggregate consideration of approximately $10,373. On August 17, 2018, Mr. Galvin acquired an additional 2,500 shares
of Common Stock pursuant to an open market purchase at a price of $4.139 per share, for aggregate consideration of approximately
$10,348.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other
than Joseph Tacopina, another managing member of TAG, solely in regards to the shares of Common Stock held by TAG, no person other
than Mr. Galvin is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from
the sale of, the securities disclosed herein.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
applicable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
information set forth in Items 3, 4 and 5 above is incorporated in this Item 6 in its entirety.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mr.
Galvin is the Chief Executive Officer and Chairman of the Company and, accordingly, may have the ability to affect and influence
control of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Employment
and Stock Option Agreements </I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mr.
Gavin and the Company are parties to an Employment Agreement, dated March 10, 2017 and effective January 1, 2017. Mr. Gavin is
also a party to various stock option agreements under the Incentive Plan, relating to his positions as Chief Executive Officer
and Chairman of the Board of Directors of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 33%; border: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No. 78418A 307</FONT></TD>
    <TD STYLE="width: 34%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: center; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13D</B></FONT></TD>
    <TD STYLE="width: 33%; border-top: black 1.5pt solid; border-right: black 1.5pt solid; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: right; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Page
    6 of 7 Pages</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
7. Material to Be Filed as Exhibits.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; width: 48px; text-indent: 0; background-color: White"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: justify; width: 48px; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: justify; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000114420411043419/v230056_ex2-1.htm">Merger Agreement and Plan of Reorganization, dated July 27, 2011, by and among CDSI Holdings Inc., CDSI Merger Sub, Inc., SG Building Blocks, Inc. and certain shareholders of SG Building Blocks, Inc. (incorporated herein by reference to Exhibit 2.01 to the Current Report on Form 8-K as filed by the Company with the Securities and Exchange Commission on August 2, 2011).</A></FONT></TD></TR>
<TR STYLE="vertical-align: top; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; font: 10pt Times New Roman, Times, Serif; text-indent: 0; background-color: White"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0; text-align: justify; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0; text-align: justify; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-indent: 0; background-color: White"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: justify; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: justify; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390017002294/f8k031317ex10i_sgblocks.htm">Employment Agreement, dated March 10, 2017, between Paul Galvin and SG Blocks, Inc. (incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on March 14, 2017).</A></FONT></TD></TR>
<TR STYLE="vertical-align: top; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="padding: 0; font: 10pt Times New Roman, Times, Serif; text-indent: 0; background-color: White"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0; text-align: justify; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0; text-align: justify; font: 10pt Times New Roman, Times, Serif; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-indent: 0; background-color: White"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: justify; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding: 0; text-align: justify; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390016017851/f8k102616ex10i_sgblocksinc.htm">Form of SG Blocks, Inc. Incentive Stock Option Agreement (incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on November 1, 2016).</A></FONT></TD></TR>
</TABLE>
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    No. 78418A 307</FONT></TD>
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    7 of 7 Pages</FONT></TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><B>SIGNATURE</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">After
reasonable inquiry and to the best of my knowledge and belief, the undersigned certifies that the information set forth in this
statement is true, complete and correct.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated:
September 7, 2018</FONT></P>

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    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; width: 60%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; width: 4%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 36%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/&nbsp;Paul
    M. Galvin</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Paul
    M. Galvin</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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