<SEC-DOCUMENT>0001213900-24-005117.txt : 20240122
<SEC-HEADER>0001213900-24-005117.hdr.sgml : 20240122
<ACCEPTANCE-DATETIME>20240122102053
ACCESSION NUMBER:		0001213900-24-005117
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240122
DATE AS OF CHANGE:		20240122
GROUP MEMBERS:		INVERBAN INVESTMENTS S.L. (UNIPERSONAL)
GROUP MEMBERS:		ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN
GROUP MEMBERS:		TECHINT FINANCIAL SERVICES S.L. (UNIPERSONAL)
GROUP MEMBERS:		TECHINT HOLDINGS S.A R.L.
GROUP MEMBERS:		TENARIS GLOBAL SERVICES & INVESTMENTS S.A R.L.
GROUP MEMBERS:		TENARIS S.A.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ternium S.A.
		CENTRAL INDEX KEY:			0001342874
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			N4
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-82564
		FILM NUMBER:		24547357

	BUSINESS ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL
		STREET 2:		4TH FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449
		BUSINESS PHONE:		(352) 4661-11-3815

	MAIL ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL
		STREET 2:		4TH FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SAN FAUSTIN S.A.
		CENTRAL INDEX KEY:			0001429586
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			N4
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL, GROUND FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449
		BUSINESS PHONE:		(352) 2720-9600

	MAIL ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL, GROUND FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	San Faustin N.V.
		DATE OF NAME CHANGE:	20080312
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>ea191956-13da10san_ternium.htm
<DESCRIPTION>AMENDMENT NO. 10 TO SCHEDULE 13D
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

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

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

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

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><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: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ternium
S.A.</FONT></P>



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

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0pt; margin-bottom: 0pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Name
of Issuer)</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ordinary
Shares, $1.00 par value per share</FONT></P>



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

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0pt; margin-bottom: 0pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; 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: 0; text-align: center"><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-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">880890108</FONT></P>

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



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



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



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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Fernando
J. Mantilla, 26, Boulevard Royal, Ground Floor, L-2449 Luxembourg, Grand-Duchy of Luxembourg</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;Telephone:
+352 27209600</FONT></P>



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

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0pt; margin-bottom: 0pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;(Name,
Address and Telephone number of Person Authorized to</FONT></P>

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

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

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

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0pt; margin-bottom: 0pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

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



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Date
of Event Which Requires Filing of this Statement)</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><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: 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&ndash;1(e), 240.13d&ndash;1(f) or 240.13d&ndash;1(g), check the
following box. &#9744;</FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="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></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 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, see the Notes).</FONT></P>

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

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

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

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 24%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; font-size: 10pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>880890108</FONT></TD>
    <TD STYLE="width: 76%; font-size: 10pt">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 7%; border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="width: 93%; border-top: Black 1.5pt 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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD><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-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD><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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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 &nbsp;ITEMS
2(d) OR 2(e):&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></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="text-align: center; width: 20%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">WITH:</P></TD>
    <TD STYLE="width: 7%; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="width: 73%; border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE VOTING POWER: 0&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED VOTING POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE DISPOSITIVE POWER: 0&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 0">SHARED DISPOSITIVE POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 7%; border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="width: 93%; border-top: Black 1.5pt solid">AGGREGATE AMOUNT BENEFICIALLY
OWNED BY EACH REPORTING PERSON: 1,533,470,526</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right">&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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): 78.1%**</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): HC</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0pt; margin-bottom: 0pt; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">**</TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">The percent of class figures set
forth in this Amendment No. 10 are calculated based on 2,004,743,442 issued and outstanding Ordinary Shares (as defined below) as of
January 22, 2024, as published on the website of Ternium S.A., of which 41,666,666 were held by Ternium S.A. as treasury stock.</FONT></TD>
</TR></TABLE>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD STYLE="border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 24%; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>880890108</FONT></TD>
    <TD STYLE="width: 76%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD><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-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD><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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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 &nbsp;ITEMS
2(d) OR 2(e):&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD ROWSPAN="4" STYLE="text-align: center; width: 20%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">WITH:</P></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 73%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE VOTING POWER: 0</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED VOTING POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE DISPOSITIVE POWER: 0</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">10.</FONT></TD>
    <TD STYLE="padding-bottom: 1pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED DISPOSITIVE POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;&nbsp;</B></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT BENEFICIALLY
OWNED BY EACH REPORTING PERSON: 1,533,470,526</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right">&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 (11): 78.1%**</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <TD STYLE="border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 24%; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>880890108<B> </B></FONT></TD>
    <TD STYLE="width: 76%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD><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-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD><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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&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 &nbsp;ITEMS
2(d) OR 2(e):&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD ROWSPAN="4" STYLE="text-align: center; width: 20%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">WITH:</P></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 73%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE VOTING POWER: 1,243,433,012</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED VOTING POWER: 290,037,514</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE DISPOSITIVE POWER: 1,243,433,012</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 0">SHARED DISPOSITIVE POWER: 290,037,514</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT BENEFICIALLY
OWNED BY EACH REPORTING PERSON: 1,533,470,526</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right">&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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): 78.1%**</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&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="border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 24%; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>880890108</FONT></TD>
    <TD STYLE="width: 76%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><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">TENARIS 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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&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>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD><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-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD><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 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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 &nbsp;ITEMS
2(d) OR 2(e):&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD ROWSPAN="4" STYLE="text-align: center; width: 20%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">WITH:</P></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 73%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE VOTING POWER: 0&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED VOTING POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE DISPOSITIVE POWER: 0&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 0">SHARED DISPOSITIVE POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT BENEFICIALLY
OWNED BY EACH REPORTING PERSON: 1,533,470,526</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right">&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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): 78.1%**</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&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="border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 24%; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>880890108</FONT></TD>
    <TD STYLE="width: 76%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><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"></FONT>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TENARIS GLOBAL SERVICES AND INVESTMENTS S.&Agrave; R.L.</P>
<FONT STYLE="font-family: Times New Roman, Times, Serif"></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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD><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-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD><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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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 &nbsp;ITEMS
2(d) OR 2(e):&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD ROWSPAN="4" STYLE="text-align: center; width: 20%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">WITH:</P></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; width: 73%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE VOTING POWER: 229,713,194</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED VOTING POWER: 1,303,757,332</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE DISPOSITIVE POWER: 229,713,194</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 0">SHARED DISPOSITIVE POWER: 1,303,757,332</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 93%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT BENEFICIALLY
OWNED BY EACH REPORTING PERSON: 1,533,470,526</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right">&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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): 78.1%**</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&nbsp;&nbsp;&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="border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 24%; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>880890108<B> </B></FONT></TD>
    <TD STYLE="width: 76%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><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 FINANCIAL SERVICES S.L. (Unipersonal) </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>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">2.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (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 STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-right: 1in; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD>SEC USE ONLY</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD><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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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 &nbsp;ITEMS
2(d) OR 2(e): &#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>SPAIN</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="text-align: center; width: 20%; padding-right: 0; padding-left: 0; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">WITH:</P></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; vertical-align: top; width: 7%; padding-right: 0; padding-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; vertical-align: top; width: 73%; padding-right: 0; padding-left: 0">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE VOTING POWER: 0&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-right: 0; padding-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-right: 0; padding-left: 0">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED VOTING POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-right: 0; padding-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-right: 0; padding-left: 0">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE DISPOSITIVE POWER: 0&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">10.</FONT></TD>
    <TD STYLE="padding-right: 0; padding-left: 0">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED DISPOSITIVE POWER: 1,533,470,526</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 93%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT BENEFICIALLY
OWNED BY EACH REPORTING PERSON: 1,533,470,526</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right">&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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): 78.1%**</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&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="border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 24%; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">CUSIP NO.<B> </B>880890108<B> </B></FONT></TD>
    <TD STYLE="width: 76%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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="border-top: Black 1.5pt solid; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 93%"><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">INVERBAN INVESTMENTS S.L. (Unipersonal)</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 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">3.</FONT></TD>
    <TD><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-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">4.</FONT></TD>
    <TD><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>N/A</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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 &nbsp;ITEMS
2(d) OR 2(e): &#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt 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">SPAIN</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="vertical-align: middle; width: 20%; text-align: center">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">WITH:</P></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; vertical-align: top; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; vertical-align: top; width: 73%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE VOTING POWER: 60,324,320</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">8.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SHARED VOTING POWER: 1,473,146,206</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">9.</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">SOLE DISPOSITIVE POWER: 60,324,320</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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: 0">SHARED DISPOSITIVE POWER: 1,473,146,206</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;&nbsp;</B></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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">
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 93%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.</FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">AGGREGATE AMOUNT BENEFICIALLY
OWNED BY EACH REPORTING PERSON: 1,533,470,526</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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 CERTAIN SHARES (SEE INSTRUCTIONS)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 1in; text-align: right">&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: right">&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): 78.1%**</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">14.</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS): CO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This Amendment No. 10 amends and supplements the
Schedule 13D originally filed on February 11<SUP>th</SUP>, 2011 (this &quot;Amendment No. 10&quot;), as further amended by Amendments
No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. 8 and No. 9, on behalf of RP STAK, SAN FAUSTIN, TECHINT HOLDINGS, TENARIS, TENARIS
GS INVESTMENTS, TEFIN and INVERBAN (as defined thereunder), relating to the Ordinary Shares par value $1 per share of Ternium S.A. (the
&ldquo;Ordinary Shares&rdquo;). This Amendment No. 10 reflects the changes in the addresses of certain Reporting Persons, as well as certain
changes in the composition of the voting committee, board of directors or executive officers of certain Reporting Persons, and also reflects
corrections to previously reported percentages on the Ordinary Shares held by the Reporting Persons as reported on Rows 13 of the cover
pages of this Schedule 13D. Except as specifically provided herein, this Amendment No. 10 does not modify any of the information previously
reported on the Schedule 13D and its amendments.</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; text-indent: 0in"><B>Item 2. Identity and Background</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This Schedule 13D is being jointly filed by each
of the following persons pursuant to Rule 13d-1(k) (collectively, the &ldquo;Reporting Persons&rdquo;).</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 18pt"></TD><TD STYLE="width: 27pt">(a)</TD><TD STYLE="text-align: justify">ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN (&ldquo;RP STAK&rdquo;)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">Fascinatio Boulevard 764, 2909 VA Capelle
aan den Ijssel, The Netherlands.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">RP STAK is a private foundation (<I>stichting</I>)
organized under the laws of The Netherlands. No person or group of persons controls RP STAK.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 18pt"></TD><TD STYLE="width: 27pt">(b)</TD><TD STYLE="text-align: justify">SAN FAUSTIN S.A. (&ldquo;SAN FAUSTIN&rdquo;)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">26, Boulevard Royal, Ground Floor, L-2449,
Luxembourg.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">SAN FAUSTIN is a <I>soci&eacute;t&eacute;
anonyme</I> (public limited liability company) organized under the laws of the Grand-Duchy of Luxembourg. 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 0pt 45pt; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 18pt"></TD><TD STYLE="width: 27pt">(c)</TD><TD STYLE="text-align: justify">TECHINT HOLDINGS S.&Agrave; R.L. (&ldquo;TECHINT HOLDINGS&rdquo;)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">26, Boulevard Royal, Ground Floor, L-2449,
Luxembourg.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">TECHINT HOLDINGS is a <I>soci&eacute;t&eacute;
&agrave; responsabilit&eacute; limit&eacute;e</I> (private limited liability company) organized under the laws of the Grand-Duchy of Luxembourg.
All of the shares of TECHINT HOLDINGS are held by SAN FAUSTIN.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 18pt"></TD><TD STYLE="width: 27pt">(d)</TD><TD STYLE="text-align: justify">TENARIS S.A. (&ldquo;TENARIS&rdquo;)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">26, Boulevard Royal,
4<SUP>th</SUP> Floor, L-2449, Luxembourg.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">TENARIS is a <I>soci&eacute;t&eacute;
anonyme</I> (public limited liability company) organized under the laws of the Grand-Duchy of Luxembourg. Approximately 61.4% of the shares
of TENARIS are held by TECHINT HOLDINGS.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 18pt"></TD><TD STYLE="width: 27pt">(e)</TD><TD STYLE="text-align: justify">TENARIS GLOBAL SERVICES AND INVESTMENTS S.&Agrave; R.L. (&ldquo;TENARIS GS INVESTMENTS&rdquo;)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">26, Boulevard Royal,
4<SUP>th</SUP> Floor, L-2449, Luxembourg.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">TENARIS GS INVESTMENTS
S.&Agrave; R.L. is a <I>soci&eacute;t&eacute; &agrave; responsabilit&eacute; limit&eacute;e</I> (private limited liability company) organized
under the laws of the Grand-Duchy of Luxembourg. All of the shares of TENARIS GS INVESTMENTS are held by TENARIS.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 18pt"></TD><TD STYLE="width: 27pt">(f)</TD><TD STYLE="text-align: justify">TECHINT FINANCIAL SERVICES S.L. (Unipersonal) (&ldquo;TEFIN&rdquo;)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">Paseo de Recoletos N&ordm; 12, 3rd floor,
Madrid 28001, Spain.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">TEFIN is a public limited
liability company, organized under the laws of Spain. All of the shares of TEFIN are held by TECHINT HOLDINGS.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify; text-indent: 0in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 18pt"></TD><TD STYLE="width: 27pt">(h)</TD><TD STYLE="text-align: justify">INVERBAN INVESTMENTS S.L. (Unipersonal) (&ldquo;INVERBAN&rdquo;)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">Paseo de Recoletos N&ordm; 12, 3<SUP>rd
</SUP>floor, Madrid 28001, Spain.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">Uruguayan Branch: Luis A. de Herrera
1248, Tower III, Office 157, WTC, Montevideo (11300), Uruguay.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">INVERBAN is a limited liability company
organized under the laws of Spain who may act though its branch registered in Montevideo, Republic of Uruguay. All of the shares of INVERBAN
are held by TEFIN.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 45pt; text-align: justify">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36pt; text-align: justify; text-indent: 0in"><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 36pt; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The name, residence or business address, present
principal occupation or employment (and the name, principal business and address of any corporation or other organization in which such
employment is conducted) and citizenship of each voting committee member, executive officer, director or legal representative, as applicable,
of each Reporting Person are set forth in Schedule I and is incorporated into this Item 2 by reference.</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">During the last five years, none of the Reporting
Persons, nor, to the knowledge of the Reporting Persons, none of the persons listed on Schedule I has (i) been convicted in a criminal
proceeding (excluding traffic violations or similar misdemeanors) or (ii) been a party to a civil proceeding of a judicial or administrative
body of competent jurisdiction and 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.</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">Information with respect to each of the Reporting
Persons is given solely by such Reporting Person, and no Reporting Person assumes responsibility for the accuracy or completeness of information
given by another Reporting Person.</P>

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

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in; text-align: left">(a) (b)</TD><TD STYLE="text-align: justify">RP STAK. See items (7) through (11) and (13) on page
2</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.75in; text-indent: 0pt">SAN FAUSTIN. See items (7) through
(11) and (13) on page 3</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.75in; text-indent: 0pt">TECHINT HOLDINGS. See items (7) through
(11) and (13) on page 4</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.75in; text-indent: 0pt">TENARIS. See items (7) through (11)
and (13) on page 5</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.75in; text-indent: 0pt">TENARIS GS INVESTMENTS. See items (7)
through (11) and (13) on page 6</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.75in; text-indent: 0pt">TEFIN. See items (7) through (11) and
(13) on page 7</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.75in; text-indent: 0pt">INVERBAN. See items (7) through (11)
and (13) on page 8</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">There have been no transactions in
Ordinary Shares effected by the Reporting Persons or, to the best of the Reporting Person&rsquo;s knowledge, any person or entity identified
on Schedule I hereto, during the last 60 days.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in">(d) Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in">(e) Not applicable.</P>

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

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



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&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="border-bottom: Black 1.5pt solid"><B>Exhibit</B></TD>
    <TD STYLE="padding-bottom: 1.5pt"><B>&nbsp;</B></TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify"><B>Description</B></TD></TR>
                                                                                                                                          <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
<TD STYLE="width: 9%">A</TD>
    <TD STYLE="width: 1%">&nbsp;</TD><TD STYLE="text-align: justify; width: 90%"><A HREF="https://www.sec.gov/Archives/edgar/data/1342874/000117184323006685/sc13da_110223.htm">Power of Attorney of ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN dated October 31<SUP>st</SUP>, 2023.***</A></TD></TR>
<TR STYLE="vertical-align: top; background-color: White">
<TD>B</TD>
    <TD>&nbsp;</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1342874/000117184323006685/sc13da_110223.htm">Power of Attorney of SAN FAUSTIN S.A. dated September 28<SUP>th</SUP>, 2023.***</A></TD></TR>
<TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
<TD>C</TD>
    <TD>&nbsp;</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1342874/000117184323006685/sc13da_110223.htm">Power of Attorney of TECHINT HOLDINGS S.&agrave; r.l. dated September 28<SUP>th</SUP>, 2023.***</A></TD></TR>
<TR STYLE="vertical-align: top; background-color: White">
<TD>D</TD>
    <TD>&nbsp;</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1342874/000117184323006685/sc13da_110223.htm">Power of Attorney of TENARIS S.A. dated October 3<SUP>rd</SUP>, 2023.***</A></TD></TR>
<TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
<TD>E</TD>
    <TD>&nbsp;</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1342874/000117184323006685/sc13da_110223.htm">Power of Attorney of TENARIS GLOBAL SERVICES AND INVESTMENTS S.&agrave; r.l. dated October 3<SUP>rd</SUP>, 2023.***</A></TD></TR>
<TR STYLE="vertical-align: top; background-color: White">
<TD>F</TD>
    <TD>&nbsp;</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1342874/000117184323006685/sc13da_110223.htm">Power of Attorney of TECHINT FINANCIAL SERVICES S.L. (Unipersonal) dated September 28<SUP>th</SUP>, 2023.***</A></TD></TR>
<TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
<TD>G</TD>
    <TD>&nbsp;</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1342874/000117184323006685/sc13da_110223.htm">Power of Attorney of INVERBAN INVESTMENTS S.L. (Unipersonal) dated September 28<SUP>th</SUP>, 2023.***</A></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 81.35pt; text-align: justify; text-indent: -27.35pt">&nbsp;</P>

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<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">***</TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Previously
filed as an exhibit to the Schedule 13D of Ternium S.A. dated November 2<SUP>nd</SUP>, 2023 and incorporated by reference in this Amendment
No. 10.</FONT></TD>
</TR></TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36pt; text-align: justify; text-indent: 0in"><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 0pt 42pt; text-align: right">&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: 0pt 0 0pt 42pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR
AANDELEN SAN FAUSTIN</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><U>MANAGEMENT</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: top">
    <TD STYLE="border: Black 1.5pt solid; width: 23%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Manager</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 27%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-indent: -1.05pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 34%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 16%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Earl Management (Netherlands) B.V.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Fascinatio Boulevard 764, 2909 VA Capelle aan den IJssel, The Netherlands</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Management Company</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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; text-align: center">&nbsp;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; 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: top">
    <TD STYLE="border: Black 1.5pt solid; width: 23%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Members</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 27%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 34%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 16%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paolo Rocca (Chairman)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman &amp; CEO of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gianfelice Rocca </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, 20149 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of the Board of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Roberto Bonatti</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Viale Piave 4, 20129 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Sof&iacute;a Bonatti Elias de Tejada</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Rue Antoine Breart 167, Bruxelles, Belgium</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Lawyer</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Swiss</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Giovanni Sardagna</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gravules-ch 10, 7522 La Punt Chamues-ch, Switzerland </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Investors&rsquo; relations of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Andres Pi&ntilde;eyro</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paseo de Recoletos N&ordm; 12, 3<SUP>rd</SUP> floor, 28001 Madrid, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">President of Meridium S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Lodovico Rocca</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, 20149 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Vice-president of Techint E&amp;C, Uruguay</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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; text-align: justify; text-indent: -37.5pt">&nbsp;</P>

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;<B>&nbsp;</B></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"><B>SAN
FAUSTIN S.A.</B></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"><B>&nbsp;</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></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">
    <TD STYLE="border: Black 1.5pt solid; width: 23%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 27%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 34%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gianfelice Rocca</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, 20149 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of the Board of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paolo Rocca</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman&nbsp;&nbsp;&amp; CEO of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Roberto Bonatti</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Viale Piave 4, 20129 Milan, Italy </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Guido Bonatti</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Donizetti&nbsp;&nbsp;57, Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Financial Advisor</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Nicola Drago</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">2, Ugo Bassi, 20159 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Vice-president of De Agostini SpA</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Giorgio Alliata di Montereale</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carlos M. Della Paolera 299, 18<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Economist</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Bob Kneip</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">33, rue des Puits de Romain, L-8070, Bertrange, Luxembourg </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Vice-Chairman of Kneip Communication Luxembourg</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Luxembourgish</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Andres Pi&ntilde;eyro</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paseo de Recoletos N&ordm; 12, 3rd floor, 28001 Madrid, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">President of Meridium S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Lodovico Rocca</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, 20149 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Vice-president of Techint E&amp;C, Uruguay</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Giovanni Sardagna</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gravules-ch 10, 7522 La Punt Chamues-ch, Switzerland </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Investors&rsquo; relations of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paolo Bassetti</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Strada Principal&abreve; 216. Copsa Mare, Sibiu 557046, Romania</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of BEPA Investitii Consultor SRL, Bucarest, Romania</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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; 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: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>OFFICERS</U></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"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></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">
    <TD STYLE="border: Black 1.5pt solid; width: 23%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 27%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 34%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 16%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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 STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, 20149 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of the Board of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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">Paolo Rocca</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman &amp; CEO of Tenaris S.A. </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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">Giovanni Sardagna</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gravules-ch 10, 7522 La Punt Chamues-ch, Switzerland </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Investors&rsquo; relations of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Secretary of the Board of Directors and Chief Legal Officer</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Fernando Jorge Mantilla</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carlos M. Della Paolera 299, 16<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Legal Officer of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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">Mariana Pe&ntilde;a-Pinon</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">26, Boulevard Royal, Ground Floor, L-2449 Luxembourg </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Legal Manager of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">French</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Chief Financial Officer</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Mario O. Lalla</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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 STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Financial Officer of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>General Manager </B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Diego Fortunato</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">26, Boulevard Royal, Ground Floor, L-2449 Luxembourg</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">General Manager of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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">&nbsp;</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></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">
    <TD STYLE="border: Black 1.5pt solid; width: 23%; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 27%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 34%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="border-top: Black 1.5pt solid; width: 16%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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 STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monterosa 93, 20149 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Paolo Rocca</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Vice-chairman)</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman &amp; CEO of Tenaris S.A. </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Mario O. Lalla</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 28<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Financial Officer of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Alain Renard</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">74, Grand-Rue, L-1660 Luxembourg, Grand Duchy of Luxembourg</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Member of the Executive Committee of Atalux</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">French</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Diego Fortunato</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">26, Boulevard Royal, Ground Floor, L-2449 Luxembourg</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">General Manager of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt"><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: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>TENARIS
S.A.</B></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"><B>&nbsp;</B></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"><B><U>BOARD
OF DIRECTORS</U></B></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"><B>&nbsp;</B></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"><B></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">
    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paolo Rocca</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman &amp; CEO of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Germ&aacute;n Cur&aacute;</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">2200 West Loop South, Suite 800, Houston, Texas, 77027, USA</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director and Vice Chairman of the Board of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">US</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Guillermo F. Vogel Hinojosa</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Campos Eliseos 400 Piso 17, Col. Chapultepec Polanco, Mexico</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director and Vice Chairman of the Board of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Mexican</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Roberto Bonatti</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Viale Piave 4, 20129 Milan, Italy </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carlos A. Condorelli</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 28<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Tenaris S.A. and Ternium S.A</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gianfelice Rocca</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Via Monte Rosa 93, 20149 Milan, Italy</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of the Board of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Jaime Serra Puche</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">600 Paseo de La Reforma, 1 floor, Plaza de la Reforma Santa Fe Bldg, Mexico </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman of SAI Derecho &amp; Economia</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Mexican</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">M&oacute;nica Tiuba</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">26, Boulevard Royal, 4<SUP>th</SUP> Floor, L-2449 Luxembourg</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Tenaris S.A. and Chairperson of Tenaris Audit Committee</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Brazilian and Luxembourgish</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Simon Ayat</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">26, Boulevard Royal, 4th Floor, L-2449 Luxembourg</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">French and Lebanese</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Maria Novales Flamarique</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">309 St. Clements Ave, M3R1H3, Toronto (Ontario), Canada</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Strategy Advisor</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Canadian, Spanish, and U.S.</FONT></TD></TR>
  </TABLE>
<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"><B>&nbsp;</B></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"><B><U>OFFICERS</U></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"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></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">
    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Chief Executive Officer</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Paolo Rocca</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 29<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chairman &amp; CEO of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Chief Financial Officer</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Alicia M&oacute;ndolo</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 25<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Financial Officer of Tenaris SA</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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">Cecilia Bilesio</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Campos Eliseos 400 17<SUP>th</SUP>, Col. Chapultepec Polanco, Mexico</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Secretary of the Board of Directors of Tenaris S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</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>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>TENARIS GLOBAL SERVICES AND INVESTMENTS S.&agrave;
r.l.</B></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"><B>&nbsp;</B></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"><B><U>BOARD
OF MANAGERS</U></B></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"><B>&nbsp;</B></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"><B></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">
    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Alicia M&oacute;ndolo</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Manager B)</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Av. Leandro N. Alem 1067, 25<SUP>th</SUP> floor, Buenos Aires, Argentina</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Financial Officer of Tenaris SA</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Stefano Bassi</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Manager A)</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">26, Boulevard Royal, 4<SUP>th</SUP> Floor, L-2449 Luxembourg </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Manager of Tenaris Global Services and Investments S. &agrave; r.l.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Yves Speeckaert</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Manager B)</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">57 rue de l&rsquo;Alzette, L-4011 Esch-sur-Alzette,&nbsp;&nbsp;Luxembourg </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Independent Director</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Belgian</FONT></TD></TR>
  </TABLE>
<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"><B></B></FONT>&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 42pt; text-align: justify; text-indent: 0.75in"><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: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>TECHINT
FINANCIAL SERVICES S.L. (Unipersonal) </B></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"><B>&nbsp;&nbsp;</B></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"><B><U>BOARD
OF DIRECTORS</U></B></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"><B>&nbsp;&nbsp;</B></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"><B></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">
    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Mario Osvaldo Lalla</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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 STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Financial Officer of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Andr&eacute;s Jes&uacute;s David Echegaray</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paseo de Recoletos N&ordm; 12, 3rd floor, 28001 Madrid, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Techint Financial Services S.L. (Unipersonal)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gonzalo de Benito</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paseo de la Castellana 12, Madrid, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Attorney-at-law</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Spanish</FONT></TD></TR>
  </TABLE>
<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">&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"><B><U>OFFICERS</U></B></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"><B>&nbsp;</B></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"><B></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">
    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Present principal</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>occupation</B></P></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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">Mario O. Lalla</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><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 STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Financial Officer of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Secretary</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Gonzalo de Benito</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paseo de la Castellana 12, Madrid, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Attorney-at-law</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Spanish</FONT></TD></TR>
  </TABLE>
<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"><B>&nbsp;</B></FONT></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INVERBAN INVESTMENTS S.L. (Unipersonal)</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><U>BOARD OF DIRECTORS</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; 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: top">
    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Enrico Bonatti</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">8th Floor, Farringdon Street, London, EC4A 4AB, United Kingdom</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Tenaris Global Services (UK) Ltd.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Swiss</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Diego Fortunato</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">26, Boulevard Royal, Ground Floor, L-2449 Luxembourg</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">General Manager of San Faustin S.A.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Italian</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gonzalo de Benito</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paseo de la Castellana 12, Madrid, 28046, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Attorney-at-law</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Spanish</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carlos Macellari </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Julio Caro Baroja 122 1D, Madrid, 28055, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Consultant</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</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: center"><B><U>OFFICERS</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; 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: top">
    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <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">Enrico Bonatti</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">8th Floor, Farringdon Street, London, EC4A 4AB, United Kingdom </FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director of Tenaris Global Services (UK) Ltd.</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Swiss</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Secretary </B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Gonzalo de Benito</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Paseo de la Castellana 12, Madrid, 28046, Spain</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Attorney-at-law</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Spanish</FONT></TD></TR>
  </TABLE>
<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><U>URUGUAYAN BRANCH: LEGAL REPRESENTATIVES </U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; 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">
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    <TD STYLE="width: 23%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Name</B></FONT></TD>
    <TD STYLE="width: 27%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Residence or business address</B></FONT></TD>
    <TD STYLE="width: 34%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Present principal occupation</B></FONT></TD>
    <TD STYLE="width: 16%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Citizenship</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Maria Elena C&aacute;ccamo</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Luis A. de Herrera 1248, Tower III, Office 157, WTC, Montevideo (11300) Uruguay</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Legal representative of Inverban Investments SL &ndash; Sucursal Uruguay</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Argentine</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Mat&iacute;as Jos&eacute; Ripoll Munho</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Luis A. de Herrera 1248, Tower III, Office 157, WTC, Montevideo (11300) Uruguay</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Legal representative of Inverban Investments SL &ndash; Sucursal Uruguay</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">Uruguayan</FONT></TD></TR>
  </TABLE>
<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"><B>&nbsp;</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 106.2pt; text-align: justify; text-indent: -52.2pt"><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: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>SIGNATURE</U></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;&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">After reasonable inquiry and
to the best of my knowledge and belief, I, Fernando J. 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; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No. 10 to Schedule 13D on his own behalf and on behalf of SAN FAUSTIN S.A., TECHINT
HOLDINGS S.&Agrave; R.L., TENARIS S.A., TENARIS GLOBAL SERVICES AND INVESTMENTS S.&Agrave; R.L., TECHINT FINANCIAL SERVICES S.L. (Unipersonal)
and INVERBAN INVESTMENTS S.L. (Unipersonal).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">January 22, 2024</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"><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="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="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="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Fernando J. Mantilla</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <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">Attorney-in-fact</FONT></TD></TR>
  </TABLE>
<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 0pt 42pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;&nbsp;</B></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"><U>SIGNATURE</U></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;&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">After reasonable inquiry and
to the best of my knowledge and belief, I, Fernando J. 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; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No. 10 to Schedule 13D on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN, TECHINT HOLDINGS S.&Agrave; R.L., TENARIS S.A., TENARIS GLOBAL SERVICES AND INVESTMENTS S.&Agrave;
R.L., TECHINT FINANCIAL SERVICES S.L. (Unipersonal) and INVERBAN INVESTMENTS S.L. (Unipersonal).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">January 22, 2024</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="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="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="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Fernando J. Mantilla</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <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">Attorney-in-fact</FONT></TD></TR>
  </TABLE>
<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">&nbsp;</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"><U>SIGNATURE</U></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;&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">After reasonable inquiry and
to the best of my knowledge and belief, I, Fernando J. 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; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No. 10 to Schedule 13D on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN, SAN FAUSTIN S.A., TENARIS S.A., TENARIS GLOBAL SERVICES AND INVESTMENTS S.&Agrave; R.L., TECHINT
FINANCIAL SERVICES S.L. (Unipersonal) and INVERBAN INVESTMENTS S.L. (Unipersonal).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">January 22, 2024</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="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="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="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Fernando J. Mantilla</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <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">Attorney-in-fact</FONT></TD></TR>
  </TABLE>
<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: center"><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: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>SIGNATURE</U></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;&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">After reasonable inquiry and
to the best of my knowledge and belief, I, Fernando J. Mantilla, attorney duly authorized by TENARIS 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; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No. 10 to Schedule 13D on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN, SAN FAUSTIN S.A., TECHINT HOLDINGS S.&Agrave; R.L., TENARIS GLOBAL SERVICES AND INVESTMENTS
S.&Agrave; R.L., TECHINT FINANCIAL SERVICES S.L. (Unipersonal) and INVERBAN INVESTMENTS S.L. (Unipersonal).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">January 22, 2024</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="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="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="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Fernando J. Mantilla</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <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">Attorney-in-fact</FONT></TD></TR>
  </TABLE>
<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"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></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: 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: 0.5in">After reasonable inquiry and
to the best of my knowledge and belief, I, Fernando J. Mantilla, attorney duly authorized by TENARIS GLOBAL SERVICES AND INVESTMENTS 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; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No. 10 to Schedule 13D on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN, SAN FAUSTIN S.A., TECHINT HOLDINGS S.&Agrave; R.L., TENARIS S.A., TECHINT FINANCIAL SERVICES
S.L. (Unipersonal) and INVERBAN INVESTMENTS S.L. (Unipersonal).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">January 22, 2024</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>

<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; vertical-align: top">
    <TD STYLE="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="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Fernando J. Mantilla</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <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">Attorney-in-fact</FONT></TD></TR>
  </TABLE>
<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 0pt 106.2pt; text-align: justify; text-indent: -52.2pt"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 106.2pt; text-align: justify; text-indent: -52.2pt">&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: 0.5in">After reasonable inquiry and
to the best of my knowledge and belief, I, Fernando J. Mantilla, attorney duly authorized by TECHINT FINANCIAL SERVICES S.L. (Unipersonal)
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; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No. 10 to Schedule 13D on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN, SAN FAUSTIN S.A., TECHINT HOLDINGS S.&Agrave; R.L., TENARIS S.A., TENARIS GLOBAL SERVICES AND
INVESTMENTS S.&Agrave; R.L. and INVERBAN INVESTMENTS S.L. (Unipersonal).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">January 22, 2024</P>

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<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; vertical-align: top">
    <TD STYLE="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="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Fernando J. Mantilla</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <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">Attorney-in-fact</FONT></TD></TR>
  </TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; 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: 0.5in">After reasonable inquiry and
to the best of my knowledge and belief, I, Fernando J. Mantilla, attorney duly authorized by INVERBAN INVESTMENTS S.L. (Unipersonal) 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; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1),
the undersigned joins in the filing of this Amendment No. 10 to Schedule 13D on his own behalf and on behalf of ROCCA &amp; PARTNERS STICHTING
ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN, SAN FAUSTIN S.A., TECHINT HOLDINGS S.&Agrave; R.L., TENARIS S.A., TENARIS GLOBAL SERVICES AND
INVESTMENTS S.&Agrave; R.L. and TECHINT FINANCIAL SERVICES S.L. (Unipersonal).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">January 22, 2024</P>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Fernando J. Mantilla</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <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">Attorney-in-fact</FONT></TD></TR>
  </TABLE>
<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: 3in"></P>

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