<SEC-DOCUMENT>0001144204-15-066843.txt : 20151119
<SEC-HEADER>0001144204-15-066843.hdr.sgml : 20151119
<ACCEPTANCE-DATETIME>20151119060259
ACCESSION NUMBER:		0001144204-15-066843
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20151119
DATE AS OF CHANGE:		20151119
GROUP MEMBERS:		ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN
GROUP MEMBERS:		TECHINT HOLDINGS S.A R.L.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TENARIS SA
		CENTRAL INDEX KEY:			0001190723
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-78699
		FILM NUMBER:		151242309

	BUSINESS ADDRESS:	
		STREET 1:		29 AVENUE DE LA PORTE-NEUVE
		STREET 2:		3RD FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L 2227
		BUSINESS PHONE:		212-376-6500

	MAIL ADDRESS:	
		STREET 1:		29 AVENUE DE LA PORTE-NEUVE
		STREET 2:		3RD FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L 2227

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SAN FAUSTIN S.A.
		CENTRAL INDEX KEY:			0001429586
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			N4
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		3B, BOULEVARD PRINCE HENRI
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L- 1471
		BUSINESS PHONE:		(41-91) 913-7979

	MAIL ADDRESS:	
		STREET 1:		VIA EMILIO BOSSI,1
		CITY:			LUGANO
		STATE:			V8
		ZIP:			6900

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	San Faustin N.V.
		DATE OF NAME CHANGE:	20080312
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>v425153_sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
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<P STYLE="margin-top: 0; text-align: center; margin-bottom: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WASHINGTON, D.C. 20549</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Amendment No. 1)*</B></P>

<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">
    <TD STYLE="width: 100%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">Tenaris S.A.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Name of Issuer)</FONT></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 100%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">Ordinary Shares, $1.00 par value per share</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Title of Class of Securities)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<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">
    <TD STYLE="width: 20%; font-size: 10pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 60%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">88031 M 10 9</FONT></TD>
    <TD STYLE="width: 20%; font-size: 10pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">(CUSIP&nbsp;Number)</FONT></TD>
    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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">
    <TD STYLE="width: 100%; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">Fernando R. Mantilla, Av. Leandro N. Alem 1067, 28<SUP>th</SUP> Floor, Buenos Aires, Argentina, </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">Telephone: +54-11-4018-2245</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Name, Address and Telephone number of Person Authorized to </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">Receive Notices and Communications)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">November 18, 2015 </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;(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-align: center">&nbsp;</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">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&ndash;1(e), 240.13d&ndash;1(f) or 240.13d&ndash;1(g), check the
following box. </FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Note: Schedules filed in paper format shall
include a signed original and five copies of the schedule, including all exhibits. See Rule 13d&ndash;7 for other parties to whom
copies are to be sent.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">*The remainder of this cover page shall
be filled out for a reporting person'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.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">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, see the Notes).</P>

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




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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&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">
    <TD STYLE="width: 100%; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>88031 M 10 9</FONT></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">00-0000000</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">2.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&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">
    <TD STYLE="width: 80%">&nbsp;</TD>
    <TD STYLE="width: 20%"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">SOURCE OF FUNDS (SEE INSTRUCTIONS): </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">N/A</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">5.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e):&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">6.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CITIZENSHIP OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">THE NETHERLANDS</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&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">
    <TD ROWSPAN="4" STYLE="width: 20%; border-top: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">NUMBER OF<BR>
        SHARES<BR>
        BENEFICIALLY<BR>
        OWNED BY<BR>
        EACH<BR>
        REPORTING<BR>
        PERSON<BR>
        WITH:</P></TD>
    <TD STYLE="width: 8%; border-top: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="width: 72%; border-top: Black 1pt solid; border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE VOTING POWER: 0</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED VOTING POWER: 713,605,187</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER: 0</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">10.</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED DISPOSITIVE POWER: 713,605,187</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT
    BENEFICIALLY OWNED BY EACH REPORTING</FONT> <FONT STYLE="font-family: Times New Roman, Times, Serif">PERSON: 713,605,187</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">12.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
    EXCLUDES</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"> CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">13.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW&nbsp;(11): 60.4%</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): HC</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></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">
    <TD STYLE="width: 100%"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>88031 M 10 9</FONT></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">SAN FAUSTIN S.A.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">00-0000000</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">2.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&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">
    <TD STYLE="width: 80%">&nbsp;</TD>
    <TD STYLE="width: 20%"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">SOURCE OF FUNDS (SEE INSTRUCTIONS): </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">N/A</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">5.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e):&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">6.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CITIZENSHIP OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">GRAND DUCHY OF LUXEMBOURG</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&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">
    <TD ROWSPAN="4" STYLE="width: 20%; border-top: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">NUMBER OF<BR>
        SHARES<BR>
        BENEFICIALLY<BR>
        OWNED BY<BR>
        EACH<BR>
        REPORTING<BR>
        PERSON<BR>
        WITH:</P></TD>
    <TD STYLE="width: 8%; border-top: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="width: 72%; border-top: Black 1pt solid; border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE VOTING POWER: 0</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED VOTING POWER: 713,605,187</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER: 0</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">10.</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED DISPOSITIVE POWER: 713,605,187</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT
    BENEFICIALLY OWNED BY EACH REPORTING</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"> PERSON:
    713,605,187</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">12.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES</FONT> <FONT STYLE="font-family: Times New Roman, Times, Serif">CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">13.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW&nbsp;(11): 60.4%</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>




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

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    <!-- Field: /Page -->

<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">
    <TD STYLE="width: 100%"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>88031 M 10 9</FONT></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">TECHINT HOLDINGS S.&Agrave; R.L.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">00-0000000</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">2.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&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">
    <TD STYLE="width: 80%">&nbsp;</TD>
    <TD STYLE="width: 20%"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">SOURCE OF FUNDS (SEE INSTRUCTIONS): </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">N/A</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">5.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e):&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">6.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CITIZENSHIP OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">GRAND DUCHY OF LUXEMBOURG</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&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">
    <TD ROWSPAN="4" STYLE="width: 20%; border-top: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">NUMBER OF<BR>
        SHARES<BR>
        BENEFICIALLY<BR>
        OWNED BY<BR>
        EACH<BR>
        REPORTING<BR>
        PERSON<BR>
        WITH:</P></TD>
    <TD STYLE="width: 8%; border-top: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="width: 72%; border-top: Black 1pt solid; border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE VOTING POWER: 713,605,187</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED VOTING POWER:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER: 713,605,187</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">10.</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED DISPOSITIVE POWER:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
</TABLE>
<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">
    <TD STYLE="width: 8%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="width: 92%; border-top: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT
    BENEFICIALLY OWNED BY EACH REPORTING</FONT> PERSON: 713,605,187</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">12.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES</FONT> <FONT STYLE="font-family: Times New Roman, Times, Serif">CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">13.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW&nbsp;(11): 60.4%</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>




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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">This Amendment No. 1 amends and supplements the Schedule 13D
filed on February 14, 2011 filed by RP STAK, SAN FAUSTIN and TECHINT HOLDINGS (as defined thereunder) (this &quot;Amendment No.
1&quot;) relating to the Ordinary Shares, par value $1 per share of Tenaris S.A. (the &ldquo;Ordinary Shares&rdquo;).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">No changes occurred except on the following Items:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 40.5pt; text-indent: -22.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: -0.25in"><B>Item
3. Source and Amount of Funds or Other Consideration</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The events requiring the filing of this
Amendment No. 1 did not involve any transfer of funds or any kind of consideration. This filing is due to some minor changes in
the composition of the Board of Directors or executive officers of some of the Reporting Persons.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">There were no changes in the holdings of
Ordinary Shares of RP STAK, SAN FAUSTIN and TECHINT HOLDINGS since such Reporting Persons filed their most recent statement on
Schedule 13D on February 14, 2011.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: -0.25in"><B>Item
4. Purpose of Transaction</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This filing of the Amendment No. 1 is due
to some minor changes in the composition of the Board of Directors or executive officers of some of the Reporting Persons.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">There were no changes in the holdings of
Ordinary Shares of RP STAK, SAN FAUSTIN and TECHINT HOLDINGS since such Reporting Persons filed their most recent statement on
Schedule 13D on February 14, 2011. RP STAK continues to control SAN FAUSTIN (i.e. it continues to have the ability to influence
matters affecting, or submitted to a vote of the shareholders of SAN FAUSTIN, including the election of directors and the approval
of certain corporate transactions and other matters concerning SAN FAUSTIN&rsquo;s policies).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><B>Item 7.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Material to Be Filed as Exhibits</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.75in; text-align: justify">&nbsp;</TD>
    <TD STYLE="width: 0.75in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Exhibit</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Description</FONT></TD>
    </TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    </TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-align: justify; text-indent: 0in; padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif">A</FONT></TD>
    <TD STYLE="text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Power of Attorney of ROCCA &amp; PARTNERS STICHTING </FONT></TD>
    </TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-align: justify; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif">ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN dated February 4, 2011.*</FONT></TD>
    </TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    </TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify; padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif">B</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Power of Attorney of SAN FAUSTIN S.A. dated February 4, 2011.*</FONT></TD>
    </TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    </TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify; padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif">C</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Power of Attorney of TECHINT HOLDINGS
S.&agrave; r.l., dated February 3, 2011.<FONT STYLE="font-size: 10pt"></FONT></FONT>*</TD>
    </TR>
</TABLE>



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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">*</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif">
Previously filed as an exhibit to the Schedule 13D of Tenaris S.A. dated February 14<SUP>th</SUP>, 2011 and incorporated by reference
in this Amendment No. 1.</FONT></P>

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




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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt; text-align: right">Schedule I</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANDOOR AANDELEN SAN FAUSTIN</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B><U>MANAGEMENT</U></B></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 22%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Manager</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Business Address</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present Principal</B></FONT><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>occupation</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Zenco Management BV</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Wilhelminakade 91, 3072 AP, Rotterdam, Netherlands</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Management Company</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Dutch</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B><U>VOTING COMMITTEE</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 22%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Members</B></FONT></TD>
    <TD STYLE="width: 2%; padding-left: 4.8pt">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Business Address</B></FONT></TD>
    <TD STYLE="width: 2%; padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid; padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal</B></FONT><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>occupation</B></FONT></TD>
    <TD STYLE="width: 2%; padding-left: 5.35pt">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid; padding-left: 5.35pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Paolo Rocca (Chairman)</FONT></TD>
    <TD STYLE="padding-left: 4.8pt">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD STYLE="padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman &amp; CEO of Tenaris S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Gianfelice Rocca </FONT></TD>
    <TD STYLE="padding-left: 4.8pt">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, Milano, Italy</FONT></TD>
    <TD STYLE="padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Roberto Bonatti</FONT></TD>
    <TD STYLE="padding-left: 4.8pt">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD STYLE="padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">President of San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Enrico Bonatti</FONT></TD>
    <TD STYLE="padding-left: 4.8pt">&nbsp;</TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Flat 7</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">81 Onslow Square</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SW7 3LT London, UK</P></TD>
    <TD STYLE="padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Tenaris Global Services (UK) Ltd.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Giovanni Sardagna</FONT></TD>
    <TD STYLE="padding-left: 4.8pt">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, Milano, Italy</FONT></TD>
    <TD STYLE="padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Investors&rsquo; relations of Tenaris S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Andres Pi&ntilde;eyro</FONT></TD>
    <TD STYLE="padding-left: 4.8pt">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Cerrito 1266, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">President of Meridium S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Lodovico Rocca</FONT></TD>
    <TD STYLE="padding-left: 4.8pt">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Hipolito Bouchard 557, 17&deg; Floor, Buenos Aires, Argentina.</FONT></TD>
    <TD STYLE="padding-left: 0.6pt">&nbsp;</TD>
    <TD STYLE="padding-left: 0.6pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">President of Techint E&amp;C, Uruguay</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt">&nbsp;</P>


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>SAN FAUSTIN S.A.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B><U>BOARD OF DIRECTORS</U></B></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 22%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Business Address</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal</B></FONT><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>occupation</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 24%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Gianfelice Rocca</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, Milan, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Roberto Bonatti</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">President of San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Paolo Rocca</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman&nbsp;&nbsp;&amp; CEO of Tenaris S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Guido Bonatti</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Donizetti&nbsp;&nbsp;57, Milan, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Financial Advisor</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Marco Drago</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">13, via Cattaneo, Novara, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman, De Agostini SpA</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Vincenzo Figus</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Parigi 11, Roma, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Attorney-at-Law</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Bob Kneip</FONT></TD>
    <TD>&nbsp;</TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">26/28 rue E. Steichen</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">L-2540 Luxembourg</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">CEO of Kneip Luxembourg</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Luxembourger</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Andres Pi&ntilde;eyro</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Cerrito 1266, Buenos Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">President, Meridium S.A., Buenos Aires</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Lodovico Rocca</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Hipolito Bouchard 557, 17&deg; Floor, Buenos Aires, Argentina.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">President of Techint E&amp;C, Uruguay</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Giovanni Sardagna</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, Milan, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Investors&rsquo; relations of Tenaris S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Alberto Valsecchi</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">President, Dalmine SpA, Bergamo, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Roberto Vidigal</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Rua Manoel Coelho 303, S&atilde;o Paulo, Brazil</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of the Board of Directors, Confab Industrial S.A., Brazil</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Brazilian</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B><U>OFFICERS</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 22%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 30%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Business Address</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 21%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal</B></FONT><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>occupation</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 21%; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Chairman of the Board</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Gianfelice Rocca</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, Milan, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>President</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Roberto Bonatti</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">President of San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Vice-president</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Paolo Rocca</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman &amp; CEO of Tenaris S.A. </FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Secretary of the Board of Directors</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Fernando Ricardo Mantilla</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 28<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Secretary of the Board of Directors</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Assistant Secretary of the Board of Directors</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Fernando Jorge Mantilla</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 28<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Attorney at law</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Assistant Secretary of the Board of Directors</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Juan Pablo Boo</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3B Boulevard Prince Henri, 3rd floor, Luxembourg L 1724, Luxembourg</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">General Manager San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">U.S.A.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt"><B>&nbsp;</B></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>TECHINT HOLDINGS S.&agrave;
r.l.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B><U>BOARD OF DIRECTORS</U></B></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid; width: 22%"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 24%"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Business Address</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 24%"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal</B></FONT><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>occupation</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 24%"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Carlos M. Franck</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 28<SUP>th</SUP> floor, Buenos&nbsp;&nbsp;Aires, Argentina</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">President of Santa Maria SAIyF.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Alain Renard</FONT></TD>
    <TD>&nbsp;</TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">41 boulevard Royal</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">L-2449 Luxembourg</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Grand Duchy of Luxembourg</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Member of the Executive Committee of Atalux</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">French</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Juan P. Boo</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3B Boulevard Prince Henri, 3rd floor, Luxembourg L 1724, Luxembourg</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">General Manager San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">U.S.A.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Gianfelice M. Rocca</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Chairman)</P></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monterosa 93, Milan, Italy</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of San Faustin S.A.</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt">&nbsp;</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 35.3pt">After reasonable inquiry
and to the best of my knowledge and belief, I, Fernando R. Mantilla, attorney duly authorized by ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN to sign this statement, certify that the information set forth in this statement is true,
complete and correct.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 35.3pt">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No.1 on his own behalf and on behalf of SAN FAUSTIN S.A. and TECHINT HOLDINGS
S.&Agrave; R.L.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">November 18, 2015</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&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">
    <TD STYLE="width: 55%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 25%; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">/s/
    <FONT STYLE="font-size: 10pt">Fernando R. Mantilla</FONT></FONT></TD>
    <TD STYLE="width: 20%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Fernando R. Mantilla</FONT></TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Attorney-in-fact</FONT></TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
<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; text-align: justify">&nbsp;</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 35.3pt">After reasonable inquiry
and to the best of my knowledge and belief, I, Fernando R. Mantilla, attorney duly authorized by SAN FAUSTIN S.A. to sign this
statement, certify that the information set forth in this statement is true, complete and correct.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 35.3pt">Pursuant to Rule 13d
- 1(k)(1), the undersigned joins in the filing of this Amendment No.1 on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN and TECHINT HOLDINGS S.&Agrave; R.L.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">November 18, 2015</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&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">
    <TD STYLE="width: 55%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 25%; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">/s/
    <FONT STYLE="font-size: 10pt">Fernando R. Mantilla</FONT></FONT></TD>
    <TD STYLE="width: 20%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Fernando R. Mantilla</FONT></TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Attorney-in-fact</FONT></TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
<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; text-align: center">&nbsp;</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 35.3pt">After reasonable inquiry
and to the best of my knowledge and belief, I, Fernando R. Mantilla, attorney duly authorized by TECHINT HOLDINGS S.&Agrave; R.L.
to sign this statement, certify that the information set forth in this statement is true, complete and correct.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 35.3pt">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No.1 on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR
AANDELEN SAN FAUSTIN and SAN FAUSTIN S.A.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">November 18, 2015</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&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">
    <TD STYLE="width: 55%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 25%; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">/s/
    <FONT STYLE="font-size: 10pt">Fernando R. Mantilla</FONT></FONT></TD>
    <TD STYLE="width: 20%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Fernando R. Mantilla</FONT></TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Attorney-in-fact</FONT></TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

































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

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