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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000891092-03-000598.txt : 20030403
<SEC-HEADER>0000891092-03-000598.hdr.sgml : 20030403
<ACCEPTANCE-DATETIME>20030403144246
ACCESSION NUMBER:		0000891092-03-000598
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030403
FILED AS OF DATE:		20030403

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:		03638133

	BUSINESS ADDRESS:	
		STREET 1:		420 FIFTH AVENUE
		STREET 2:		18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		212-376-6500

	MAIL ADDRESS:	
		STREET 1:		23 AVENUE MONTEREY
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L 2086
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>e14559htm.htm
<DESCRIPTION>FORM 6-K
<TEXT>

<html>
<head>
<title>Form 6-K</title>
</head>
<body>




<p><table width=600><tr><td  align=center><font size=3><B>FORM 6 - K</B></font></td></tr></table>



<p><table width=600><tr><td  align=center><font size=3><B>SECURITIES AND EXCHANGE COMMISSION</B><BR>
Washington, D.C. 20549 </font></td></tr></table>





<p><table width=600><tr><td  align=center><font size=3><B>Report of Foreign Private Issuer<BR>
Pursuant to Rule 13a - 16 or 15d - 16 of <BR>
the Securities Exchange Act of 1934 </B></font></td></tr></table>


<p><table width=600><tr><td  align=center><FONT SIZE="3">As of April 3, 2003</FONT></td></tr></table>



<p><table width=600><tr><td  align=center><font size=3><B>TENARIS, S.A.</B><BR>
(Translation of Registrant&#146;s name into English)</font></td></tr></table>


<p><table width=600><tr><td  align=center><font size=3><B>TENARIS, S.A.</B><BR>
23 Avenue Monterey <BR>
2086 Luxembourg <BR>
(Address of principal executive offices) </font></td></tr></table>


<p><table width=600><tr><td  align=center><font size=2>Indicate by check mark whether
the registrant files or will file annual reports under cover Form 20-F or 40-F.</font></td></tr></table>

<p><table width=600><tr><td  align=center><font size=2>Form 20-F [X] Form 40-F [ ]</font></td></tr></table>

<p><table width=600><tr><td><font size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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.</font></td></tr></table>

<p><table width=600><tr>
    <td  align=center><font size=2>Yes [ ] No [X] </font></td>
  </tr></table>


<p><table width=600><tr>
    <td  align=center><font size=2>If :&#147;Yes&#148; is marked, indicate below
      the file number assigned to the registrant in connection<br>
      with Rule 12g3-2(b): 82-______.</font></td>
  </tr></table>

<p>&nbsp;
<table width=600><tr><td width=60 align=left><font size=1>&nbsp;</font></td><td width=480 align=center><font size="2">
</font></td><td width=60 align=right><font size="1">&nbsp;</font></td></tr></table><p>&nbsp;<hr size=5 noshade width=600 align=LEFT><p>&nbsp;






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<p><table width=600><tr><td><font size=2>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's announcing
the approval of its acquisition of the remaining minority interests in Siderca  .</font></td></tr></table>


<p><table width=600><tr>
    <td  align=center><font size=4>SIGNATURE</font></td>
  </tr></table>




<p><table width=600><tr><td><FONT SIZE="3">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.</FONT></td></tr></table>



<p><table width=600><tr><td><FONT SIZE="3">Date: April 3, 2003</FONT></td></tr></table>



<p><table width=600><tr><td  align=center><FONT SIZE="3">Tenaris, S.A.</FONT></td></tr></table>




<p><table width=600><tr><td><FONT SIZE="2"><U>By: /s/ Cecilia Bilesio</U><BR>
Cecilia Bilesio<BR>
Corporate Secretary</FONT></td></tr></table>



<p>&nbsp;
<table width=600><tr><td width=60 align=left><font size=1>&nbsp;</font></td><td width=480 align=center><font size="2">
</font></td><td width=60 align=right><font size="1">&nbsp;</font></td></tr></table><p>&nbsp;<hr size=5 noshade width=600 align=LEFT><p>&nbsp;






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<p><table width=300><tr><td><font size=2>Gerardo Varela<BR>
Tenaris<BR>
1-888 300 5432<BR>
www.tenaris.com</font></td></tr></table>

<p><table width=600><tr><td><FONT SIZE="3">Tenaris Announces the Approval of its
Acquisition of the Remaining Minority Interests in Siderca</FONT></td></tr></table>

<p><table width=600><tr><td><font size=2>Luxembourg, April 3, 2003. Tenaris S.A. (NYSE,
BASE and Mexico: TS; MTA Italy: TEN), announced today that the Argentine  securities
regulator has approved its proposal to acquire the remaining minority interests in
Siderca S.A.I.C. (Siderca)  (BASE: ERCA), which represent approximately 0.89% of Siderca&#146;s
outstanding capital stock. Tenaris also announced that  Siderca has given notice of
termination of the deposit agreement relating to the Siderca ADSs and has instructed
JPMorgan  Chase Bank, the depositary for the Siderca ADSs, to discontinue the acceptance
of Siderca shares for deposit and the  issuance of ADSs.</font></td></tr></table>

<p><table width=600><tr><td><font size=2>In accordance with Argentine law, Tenaris shall
unilaterally acquire for cash all the outstanding Siderca shares not held  by Tenaris or
its affiliates, including any Siderca shares underlying Siderca ADSs, for a purchase
price of:</font></td></tr></table>

<table width=600>
  <tr>
    <td width=3%></td>
    <td width=1% valign=top><font size=3>&#149;</font></td>
    <td width=3%></td>
    <td width=93%><font size=2>
six Argentine pesos (ARP6.00) per Siderca share; and</font></td></tr></table>

<table width=600>
  <tr>
    <td width=3%></td>
    <td width=1% valign=top><font size=3>&#149;</font></td>
    <td width=3%></td>
    <td width=93%><font size=2>sixty
Argentine pesos (ARP60.00) per Siderca ADS.</font></td></tr></table>


<p><table width=600><tr><td><font size=2>The purchase price for the Siderca shares will
be deposited at BBVA Banco Franc&eacute;s S.A., Tenaris&#146;s payment agent for this
transaction. These amounts will be made available to holders of Siderca shares beginning
on April 8, 2003, in accordance  with procedures that will be announced by public notice
in at least one Argentine newspaper of wide circulation and  through the Buenos Aires
Stock Exchange. The purchase price for the shares underlying Siderca ADSs will be
converted into  U.S. dollars at the free market rate of exchange of Argentine pesos into
U.S. dollars and deposited into the account of  JP Morgan Chase Bank on April 8, 2003, or
as soon as practicable thereafter.</font></td></tr></table>

<p><table width=600><tr><td><font size=2>In addition, Tenaris has agreed to assign to the
holders of the Siderca shares that are being acquired, including shares  underlying
Siderca ADSs, the dividend of Argentine pesos 0.16 per share (Argentine pesos 1.60 per
ADS) proposed by  Siderca&#146;s board of directors, in case this dividend is approved by
Siderca&#146;s general shareholders&#146; meeting which will be  held in April 2003.
Tenaris will announce as soon as practicable the timing and manner of such assigment and
its related  payment.</font></td></tr></table>

<p><table width=600><tr><td><font size=2>Notwithstanding the fact that Tenaris&#146;s has
the express approval of the Argentine securities&#146; regulator, four registered
holders of Siderca shares, accounting for 0.01% of Siderca&#146;s total share capital,
have presented a petition to halt the  unilateral acquisition of their shares by Tenaris.
This petition does not in any way affect the right of Tenaris to  acquire the shares
belonging to other shareholders nor the right of those shareholders to receive due
payment for those  shares in accordance with this notice.</font></td></tr></table>


<p>&nbsp;
<table width=600><tr><td width=60 align=left><font size=1>&nbsp;</font></td><td width=480 align=center><font size="2">
</font></td><td width=60 align=right><font size="1">&nbsp;</font></td></tr></table><p>&nbsp;<hr size=5 noshade width=600 align=LEFT><p>&nbsp;






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<p><table width=600><tr><td><font size=2>This  communication  does not constitute an
offer or  solicitation  for the sale,  purchase or acquisition of securities of  Siderca
or Tenaris in any jurisdiction.</font></td></tr></table>

<p><table width=600><tr><td><font size=2>Tenaris is a leading  global  manufacturer  of
seamless  steel pipe  products and provider of pipe  handling,  stocking and
distribution  services to the oil and gas,  energy and  mechanical  industries  and a
leading  regional  supplier of welded  steel  pipes  for gas  pipelines  in South
America.  Organized  in  Luxembourg,it  has pipe  manufacturing  facilities  in
Argentina,  Brazil,  Canada,  Italy,  Japan, Mexico and Venezuela and a network of
customer service centers present in over  20 countries worldwide.</font></td></tr></table>

<p>&nbsp;
<table width=600><tr><td width=60 align=left><font size=1>&nbsp;</font></td><td width=480 align=center><font size="2">
</font></td><td width=60 align=right><font size="1">&nbsp;</font></td></tr></table><p>&nbsp;<hr size=5 noshade width=600 align=LEFT><p>&nbsp;



</body>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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