<SEC-DOCUMENT>0001171843-17-005723.txt : 20170926
<SEC-HEADER>0001171843-17-005723.hdr.sgml : 20170926
<ACCEPTANCE-DATETIME>20170926134459
ACCESSION NUMBER:		0001171843-17-005723
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170926
FILED AS OF DATE:		20170926
DATE AS OF CHANGE:		20170926

FILER:

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

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31518
		FILM NUMBER:		171101654

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

	MAIL ADDRESS:	
		STREET 1:		29 AVENUE DE LA PORTE-NEUVE
		STREET 2:		3RD FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L 2227
</SEC-HEADER>
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<TYPE>6-K
<SEQUENCE>1
<FILENAME>f6k_092617.htm
<DESCRIPTION>FORM 6-K
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<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><FONT STYLE="font-size: 11pt"><B>FORM 6 - K</B></FONT></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><FONT STYLE="font-size: 11pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">Washington, D.C. 20549</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><B>Report of Foreign Private Issuer</B></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><B>Pursuant to Rule 13a - 16 or 15d - 16 of</B></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><B>the Securities Exchange Act of 1934</B></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0"><FONT STYLE="font-size: 11pt"><B>As of September 26, 2017</B></FONT></P>

<P STYLE="font-size: 10pt; margin: 0pt 0"><FONT STYLE="font-size: 11pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><FONT STYLE="font-size: 12pt"><B>TENARIS, S.A.</B></FONT></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">(Translation of Registrant's name into English)</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"><FONT STYLE="font-size: 12pt"><B>TENARIS, S.A.</B></FONT></P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">29, Avenue de la Porte-Neuve 3rd floor</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">L-2227 Luxembourg</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">(Address of principal executive offices)</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; text-indent: 21.3pt; margin: 0pt 2.45pt 0pt 0">Indicate by check mark whether the
registrant files or will file annual reports under cover Form 20-F or 40-F.</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">Form 20-F <FONT STYLE="font-family: Symbol"><U>&Ouml;</U></FONT>
&nbsp;&nbsp;&nbsp;Form 40-F ____</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-indent: 21.3pt; margin: 0pt 0">Indicate by check mark whether the registrant by furnishing the
information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12G3-2(b) under
the Securities Exchange Act of 1934.</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin-top: 0pt; text-align: center; margin-bottom: 0pt">Yes ____ &nbsp;&nbsp;&nbsp;No <FONT STYLE="font-family: Symbol"><U>&Ouml;</U></FONT>
</P>

<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0">&nbsp;</P>



<P STYLE="font-size: 10pt; text-align: center; margin: 0pt 0"></P>

<P STYLE="font-size: 10pt; text-align: center; text-indent: 21.3pt; margin: 0pt 0">If &ldquo;Yes&rdquo; is marked, indicate below
the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-__.</P>

<P STYLE="font-size: 10pt; text-align: center; text-indent: 21.3pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; text-indent: 21.3pt; margin: 0pt 0"></P>

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<P STYLE="font: 10pt/14pt Times New Roman, Times, Serif; margin: 0pt 0">The attached material is being furnished to the Securities
and Exchange Commission pursuant to Rule 13a-16 and Form 6-K under the Securities Exchange Act of 1934, as amended. This report
contains Tenaris&rsquo;s announcement regarding Tenaris Investor Presentation September 22, 2017.</P>



<P STYLE="font-size: 10pt; margin: 0pt 0"></P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-size: 11pt">SIGNATURE</FONT></P>

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<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has
duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">Date: September 26, 2017.</P>

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<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><FONT STYLE="font-size: 11pt">Tenaris, S.A.</FONT></P>

<P STYLE="font-size: 10pt; margin: 0pt 0"></P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">By: /s/ Cecilia Bilesio</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">Cecilia Bilesio</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">Corporate Secretary</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font-size: 10pt; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: bold 10pt/14pt Frutiger 65; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 12pt">Tenaris
Investor Presentation September 22, 2017.</FONT></P>

<P STYLE="font: 10pt/14pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 46.85pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 12pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Sabon MT,serif; margin: 0pt 0; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
September 22, 2017, Paolo Rocca, Chairman and Chief Executive Officer of Tenaris S.A., gave an investors presentation at the London
Stock Exchange, to discuss, among other things, the current business outlook. The audio of the presentation and the accompanying
written materials are available on the Tenaris Investor Relations website at:</FONT></P>

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

<P STYLE="font: 10pt Sabon MT,serif; margin: 0pt 0; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">http://files.shareholder.com/downloads/ABEA-2RJSJD/4253662190x0x957639/69A1FA18-EA62-45B3-89B9-9DAE7A770C34/Tenaris_Investors_presentation_Sep_2017.pdf
and at http://edge.media-server.com/m/p/oc9rjakf.</FONT></P>

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

<P STYLE="font: 10pt Sabon MT,serif; margin: 0pt 0; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Cautionary
Statement Regarding Forward-Looking Statements</B></FONT></P>

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

<P STYLE="font: 10pt Sabon MT,serif; margin: 0pt 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
audio of the presentation and the accompanying written materials referred to above contains &ldquo;forward-looking statements.&rdquo;
Forward-looking statements are based on management&rsquo;s current views and assumptions and involve known and unknown risks that
could cause actual results, performance or events to differ materially from those expressed or implied by those statements. These
statements include information regarding management strategy, investment plans, development and growth of the steel pipe and oil
and gas industries, trends and other prospective data, including trends regarding the development of raw material costs and the
levels of investment in oil and gas drilling worldwide and general economic conditions in the countries where Tenaris operates
and sells its products and services. By their nature, certain disclosures relating to these and other risks are only estimates
and could be materially different from what actually occurs in the future. As a result, actual future gains or losses that may
affect our financial condition and results of operations could differ materially from those that have been estimated. You should
not place undue reliance on the forward-looking statements, which speak only as of the date of this presentation. Except as required
by law, we are not under any obligation, and expressly disclaim any obligation to, update or alter any forward-looking statements,
whether as a result of new information, future events or otherwise.</FONT></P>

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

<P STYLE="font: 10pt Sabon MT,serif; margin: 0pt 0; text-align: justify; background-color: white"></P>

<P STYLE="font: 10pt Sabon MT,serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Tenaris
is a leading global supplier of steel tubes and related services for the world&rsquo;s energy industry and certain other industrial
applications.</I></FONT></P>



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