UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 35)*
TUBOS DE ACERO DE MEXICO S.A.
--------------------------------------------------------------------------------
(Name of Issuer)
Common Stock
--------------------------------------------------------------------------------
(Title of Class of Securities)
898592506
--------------------------------------------------------------------------------
(CUSIP Number)
Mr. Fernando R. Mantilla
Av. Leandro N. Alem 1067, 27th Floor, 1001 - Buenos Aires, Argentina
(54-11) 4018-2245
--------------------------------------------------------------------------------
(Name, Address and Telephone Number of Person Authorized to
Receive Notices and Communications)
December 20, 2002
--------------------------------------------------------------------------------
(Date of Event which Requires Filing of this Statement)
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 subsection 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g),
check the following box [ ].
Note: Schedules filed in paper format shall include a signed original
and five copies of the schedule, including all exhibits. See section
240.13d-7 for other parties to whom copies are to be sent.
*The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter disclosures provided in a prior cover page.
The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") 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).
CUSIP NO. 898592506 13D PAGE 1 OF 1 PAGES
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
ROBERTO ROCCA
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
ITALY
--------------------------------------------------------------------------------
7 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
8 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See Instructions)
IN
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 1 OF 1 PAGES
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
SIDERCA Sociedad Anonima Industrial y Comercial
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
ARGENTINA
--------------------------------------------------------------------------------
7 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
8 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 1 OF 1 PAGES
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
SIDERCA INTERNATIONAL ApS
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
DENMARK
--------------------------------------------------------------------------------
7 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
8 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 1 OF 1 PAGES
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
ROCCA & PARTNERS Sociedad Anonima
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
BRITISH VIRGIN ISLANDS
--------------------------------------------------------------------------------
7 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
8 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 1 OF 1 PAGES
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
SAN FAUSTIN N.V.
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
NETHERLANDS ANTILLES
--------------------------------------------------------------------------------
7 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
8 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 1 OF 1 PAGES
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
SIDERTUBES S.A.
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
LUXEMBOURG
--------------------------------------------------------------------------------
7 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
8 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 1 OF 4 PAGES
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
I.I.I. INDUSTRIAL INVESTMENTS INC.
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
BRITISH VIRGIN ISLANDS
--------------------------------------------------------------------------------
7 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
8 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 2 OF 4 PAGES
--------------------------------------------------------------------------------
15 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
TENARIS S.A.
--------------------------------------------------------------------------------
16 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
17 SEC USE ONLY
--------------------------------------------------------------------------------
18 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
19 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
20 CITIZENSHIP OR PLACE OF ORGANIZATION
LUXEMBOURG
--------------------------------------------------------------------------------
21 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
22 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
23 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
24 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
25 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
26 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
27 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
28 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 3 OF 4 PAGES
--------------------------------------------------------------------------------
29 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
INVERTUB S.A.
--------------------------------------------------------------------------------
30 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
31 SEC USE ONLY
--------------------------------------------------------------------------------
32 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
33 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
34 CITIZENSHIP OR PLACE OF ORGANIZATION
ARGENTINA
--------------------------------------------------------------------------------
35 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
36 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
37 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
38 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
39 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
40 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
41 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
42 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
CUSIP NO. 898592506 13D PAGE 4 OF 4 PAGES
--------------------------------------------------------------------------------
43 NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY)
SIDTAM LIMITED
--------------------------------------------------------------------------------
44 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(See Instructions)
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
45 SEC USE ONLY
--------------------------------------------------------------------------------
46 SOURCE OF FUNDS (See Instructions)
OO
--------------------------------------------------------------------------------
47 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 2(d) OR 2(e) [ ]
--------------------------------------------------------------------------------
48 CITIZENSHIP OR PLACE OF ORGANIZATION
BRITISH VIRGIN ISLANDS
--------------------------------------------------------------------------------
49 SOLE VOTING POWER
NUMBER OF
NONE
SHARES -----------------------------------------------------------------
50 SHARED VOTING POWER
BENEFICIALLY
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
OWNED BY EACH -----------------------------------------------------------------
51 SOLE DISPOSITIVE POWER
REPORTING
NONE
PERSON -----------------------------------------------------------------
52 SHARED DISPOSITIVE POWER
WITH
324,064,223 Shares of TAMSA Common Stock (1 ADR=5 shares)
--------------------------------------------------------------------------------
53 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
324,064,223
--------------------------------------------------------------------------------
54 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES (See Instructions) [ ]
NOT APPLICABLE
--------------------------------------------------------------------------------
55 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
94.50%
--------------------------------------------------------------------------------
56 TYPE OF REPORTING PERSON (See Instructions)
CO
--------------------------------------------------------------------------------
AMENDMENT NO. 35 TO SCHEDULE 13D
This Amendment No. 35 amends the Statement on Schedule 13D originally filed on
September 24, 1992, as amended and restated as of November 11, 2002 ("Schedule
13D"), on behalf of Roberto Rocca, Siderca Sociedad Anonima, Industrial y
Comercial ("Siderca SAIC"), and Siderca International ApS ("Siderca ApS"),
together with Rocca & Partners S.A. ("Rocca & Partners"), San Faustin N.V. ("San
Faustin"), Sidertubes S.A. ("Sidertubes"), I.I.I. Industrial Investments Inc.
("III BVI"), Tenaris S.A. ("Tenaris"), Invertub Sociedad Anonima ("Invertub")
and Sidtam Limited ("Sidtam") (collectively, "Reporting Persons"), relating to
the common shares, without par value (the "TAMSA Shares"), of Tubos de Acero de
Mexico S.A., a Mexican company ("TAMSA").
Item 2. Identity and Background
No changes except the following:
On December 14, 2002, the shareholders' meeting of Tenaris accepted the
resignation of the current directors of Tenaris and appointed new directors who
will take office during January 2003. Reference is made to the press release
issued by Tenaris on December 16, 2002, announcing the composition of its new
board of directors. An updated list of the directors of Tenaris and the
information required by subparagraphs (a) through (c) and subparagraph (f) of
Item 2 of Schedule 13D, as such information pertains to the directors of
Tenaris, is set forth on Schedule A and is hereby incorporated herein by
reference. To the best knowledge of the Reporting Persons, none of the directors
of Tenaris has during the last five years been convicted in a criminal
proceeding (excluding traffic violations or similar misdemeanors) or 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.
Item 3. Source and Amount of Funds and Other Consideration
The acquisition of TAMSA Shares by Tenaris, as reported in this Amendment No.
35, was made pursuant to an offer by Tenaris to exchange its ordinary shares and
ADSs for Class A ordinary shares and ADSs of Siderca SAIC, shares and ADSs of
TAMSA and ordinary shares of Dalmine S.p.A (the "Exchange Offer"), through which
Tenaris acquired a total of 146,300,208 TAMSA Shares, 117,322,251 of which are
in the form of American Depositary Shares ("ADSs"). Pursuant to a corporate
reorganization agreement entered into between Tenaris and Sidertubes on
September 13, 2002, upon settlement of the Exchange Offer on December 17, 2002,
Sidertubes satisfied Tenaris's obligation to deliver Tenaris shares pursuant to
the Exchange Offer to those shareholders whose shares were accepted for
exchange. On December 20, 2002, Sidertubes contributed all its assets and
liabilities (consisting of its remaining 260,793,483 Tenaris shares and a credit
arising
from Sidertubes' delivery of 449,953,607 Tenaris shares to tendering
shareholders) to Tenaris in exchange for 710,747,090 newly-issued Tenaris
shares.
Item 4. Purpose of the Transaction
As reported in Amendment No. 34 to the Schedule 13D, on November 11, 2002,
Tenaris announced the commencement of the Exchange Offer. Reference is now made
to the press release issued by Tenaris on December 16, 2002, announcing the
results of the Exchange Offer and to the press release issued by TAMSA on
December 16, 2002, announcing the number of TAMSA Shares held by the public
after completion of the Exchange Offer. Upon settlement of the Exchange Offer on
December 17, 2002, 94.50% of TAMSA Shares were held, directly or indirectly, by
Tenaris. The remaining 5.50% of TAMSA Shares (of which 94.90% in the form of
ADSs, representing 3,581,517 ADSs) continue to be held by the public. Although
TAMSA would continue to meet the listing requirements of the American Stock
Exchange and the Mexican Stock Exchange following settlement of the Exchange
Offer, in accordance with Mexican law, Tenaris is entitled, and may also be
required, to make further offers to the investors that did not exchange their
shares, which may ultimately lead to the delisting of the TAMSA Shares. In its
December 16, 2002 press release, Tenaris has announced that it intends to
commence the necessary proceedings to that end shortly.
As discussed in Item 3, pursuant to a corporate reorganization agreement entered
into between Tenaris and Sidertubes on September 13, 2002, upon settlement of
the Exchange Offer on December 17, 2002, Sidertubes satisfied Tenaris's
obligation to deliver Tenaris shares pursuant to the Exchange Offer to those
shareholders whose shares were accepted for exchange. On December 20, 2002,
Sidertubes contributed all its assets and liabilities (consisting of its
remaining 260,793,483 Tenaris shares and a credit arising from Sidertubes'
delivery of 449,953,607 Tenaris shares to tendering shareholders) to Tenaris in
exchange for 710,747,090 newly-issued Tenaris shares.
Item 5. Interest in Securities of the Issuer
No changes except the following:
(a) Through the Exchange Offer, Tenaris acquired direct ownership of 146,300,208
TAMSA Shares, so that, as of the date of this Amendment No. 35 to the Schedule
13D, Tenaris directly held a total of 170,113,323 TAMSA Shares, or approximately
49.61%, Siderca ApS directly held 140,600,900 TAMSA Shares, or approximately
41%, and Sidtam directly held 9,700,000 TAMSA Shares, or approximately 2.83%, of
TAMSA's total outstanding capital stock. In addition, Tamsider S.A. de C.V., a
Mexican company and a subsidiary of TAMSA, directly held 3,650,000 TAMSA Shares,
or approximately 1.06% of TAMSA's total outstanding capital stock. As a result,
each of the Reporting Persons is a beneficial owner, for the purposes of Rule
13d-3 under the Exchange Act of
1934, of 324,064,223 TAMSA Shares, corresponding to 94.50% of TAMSA's
outstanding share capital.
Item 7. Material to be Filed as Exhibits
The press release of Tenaris, dated December 16, 2002, announcing the results of
the Exchange Offer, is filed as an exhibit hereto.
The press release of Tenaris, dated December 16, 2002, announcing the new
composition of the board of directors of Tenaris, is filed as an exhibit hereto.
The press release of TAMSA, dated December 16, 2002, announcing the number of
TAMSA Shares held by the public after completion of the Exchange Offer, is filed
as an exhibit hereto.
The corporate reorganization agreement, dated September 13, 2002, between
Sidertubes S.A. and Tenaris S.A., is filed as an exhibit hereto.
Powers of attorney for Tenaris S.A., I.I.I. Industrial Investments Inc. and
Invertub S.A. are incorporated by reference into this Amendment to the ones
filed as exhibits to Amendment No. 34 to the Schedule 13D. Powers of attorney
for each of the other Reporting Persons are incorporated by reference into this
Amendment to the ones filed as exhibits to Amendment No. 23 to the Schedule 13D
of Siderca ApS.
The written agreement of the Reporting Persons related to the filing of this
Schedule 13D as required by Rule 13d-k(1)(iii) is included in the signature
pages hereto and is hereby filed as an exhibit hereto.
SCHEDULE A
TENARIS S.A.
DIRECTORS BUSINESS ADDRESS PRESENT PRINCIPAL CITIZENSHIP
OCCUPATION
----------------------------- ------------------------------- ----------------------------- -----------------------
Roberto Bonatti Av. Leandro Alem 1067, President of San Italian
Buenos Aires - Argentina Faustin N.V. and
Tecpetrol S.A. and a
director of Siderca
----------------------------- ------------------------------- ----------------------------- -----------------------
Carlos Franck Av. Leandro Alem 1067, Buenos President of Santa Maria Argentine
Aires Argentina S.A.I.F. and a director of
Siderca
----------------------------- ------------------------------- ----------------------------- -----------------------
Pedro Pablo Kuczynski 2665 South Bay Shore President and Chief Peruvian
Drive, Suite 1101 Executive Officer,
Coconut Grove Latin America
Miami, Florida-33133 Enterprise Fund, USA
USA
----------------------------- ------------------------------- ----------------------------- -----------------------
Bruno Marchettini Av. Leandro Alem 1067, Buenos Executive Vice President of Italian
Aires - Argentina Siderar S.A. and a director
of Siderca
----------------------------- ------------------------------- ----------------------------- -----------------------
Gianfelice Mario Rocca Av. Leandro Alem 1067, Chairman of San Faustin Italian
Buenos Aires - Argentina N.V. and a director of
Dalmine, Siderca and
Tamsa
----------------------------- ------------------------------- ----------------------------- -----------------------
Paolo Rocca Av. Leandro Alem 1067, Chief Executive Officer Italian
Buenos Aires - Argentina of Tenaris
----------------------------- ------------------------------- ----------------------------- -----------------------
Roberto Rocca Av. Leandro Alem 1067, Honorary Chairman of Italian
Honorary Chairman Buenos Aires - Argentina San Faustin N.V.,
President of Dalmine
and President of Siderca
----------------------------- ------------------------------- ----------------------------- -----------------------
Jaime Serra Puche Prol. Paseo de la Reforma A director of Tamsa and Mexican
600, Desp. 103 a partner in S.A.I.
01210-Mexico D.F. Consultores S.C., Mexico
----------------------------- ------------------------------- ----------------------------- -----------------------
----------------------------- ------------------------------- ----------------------------- -----------------------
Amadeo Vazquez y Vazquez Austria 2670-3(0)piso, President of Telecom Argentine
(1425) Buenos Aires - Argentina, a director
Argentina of Siderca, a director
of BBVA Banco Frances
S.A., a member of the
board of the Buenos
Aires stock exchange
and Vicepresident of
the Fundacion
Mediterranea
----------------------------- ------------------------------- ----------------------------- -----------------------
Guillermo F. Vogel Edificio Parque Reforma, Vice Chairman of Tamsa Mexican
Campos Eliseos 400, 11560
Mexico, D.F., Mexico
----------------------------- ------------------------------- ----------------------------- -----------------------
[LETTERHEAD OF ROBERTO ROCCA]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by ROBERTO ROCCA to sign this
statement, certify that the information set forth in this Schedule 13D is true,
complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROCCA & PARTNERS S.A., SAN
FAUSTIN N.V., SIDERCA Sociedad Anonima Industrial y Comercial, SIDERCA
INTERNATIONAL ApS, SIDERTUBES S.A., I.I.I. INDUSTRIAL INVESTMENTS Inc., TENARIS
S.A., INVERTUB Sociedad Anonima, and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
[LETTERHEAD OF ROCCA & PARTNERS, S.A.]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by ROCCA & PARTNERS S.A. to sign
this statement, certify that the information set forth in this Schedule 13D is
true, complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, SAN FAUSTIN
N.V., SIDERCA Sociedad Anonima Industrial y Comercial, SIDERCA INTERNATIONAL
ApS, SIDERTUBES S.A., I.I.I. INDUSTRIAL INVESTMENTS Inc., TENARIS S.A., INVERTUB
Sociedad Anonima, and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
[LETTERHEAD OF SAN FAUSTIN N.V.]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by SAN FAUSTIN N.V. to sign this
statement, certify that the information set forth in this Schedule 13D is true,
complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SIDERCA Sociedad Anonima Industrial y Comercial, SIDERCA
INTERNATIONAL ApS, SIDERTUBES S.A., I.I.I. INDUSTRIAL INVESTMENTS Inc., TENARIS
S.A., INVERTUB Sociedad Anonima, and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
[LETTERHEAD OF SIDERCA SOCIEDAD ANONIMA INDUSTRIAL Y COMERCIAL]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by SIDERCA Sociedad Anonima
Industrial y Comercial to sign this statement, certify that the information set
forth in this Schedule 13D is true, complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SAN FAUSTIN N.V., SIDERCA INTERNATIONAL ApS, SIDERTUBES S.A.,
I.I.I. INDUSTRIAL INVESTMENTS Inc., TENARIS S.A., INVERTUB Sociedad Anonima, and
SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
[LETTERHEAD OF SIDERCA INTERNATIONAL APS]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by SIDERCA INTERNATIONAL ApS to sign
this statement, certify that the information set forth in this Schedule 13D is
true, complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SAN FAUSTIN N.V., SIDERCA Sociedad Anonima Industrial y
Comercial, SIDERTUBES S.A., I.I.I. INDUSTRIAL INVESTMENTS Inc., TENARIS S.A.,
INVERTUB Sociedad Anonima, and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
[LETTERHEAD OF SIDERTUBES S.A.]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by SIDERTUBES S.A. to sign this
statement, certify that the information set forth in this Schedule 13D is true,
complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SAN FAUSTIN N.V., SIDERCA Sociedad Anonima Industrial y
Comercial, SIDERCA INTERNATIONAL ApS, I.I.I. INDUSTRIAL INVESTMENTS Inc.,
TENARIS S.A., INVERTUB Sociedad Anonima, and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
III. INDUSTRIAL INVESTMENTS INC.
BRITISH VIRGIN ISLANDS
[LETTERHEAD OF I.I.I. INDUSTRIAL INVESTMENTS INC.]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by I.I.I. INDUSTRIAL INVESTMENTS
Inc. to sign this statement, certify that the information set forth in this
Schedule 13D is true, complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SAN FAUSTIN N.V., SIDERCA Sociedad Anonima Industrial y
Comercial, SIDERCA INTERNATIONAL ApS, SIDERTUBES S.A., TENARIS S.A., INVERTUB
Sociedad Anonima, and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
TENARIS S.A.
Societe Anonyme
23, Avenue Monterey
L 2086 Luxembourg
[LETTERHEAD OF TENARIS S.A.]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by TENARIS S.A. to sign this
statement, certify that the information set forth in this Schedule 13D is true,
complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SAN FAUSTIN N.V., SIDERCA Sociedad Anonima Industrial y
Comercial, SIDERCA INTERNATIONAL ApS, SIDERTUBES S.A., I.I.I. INDUSTRIAL
INVESTMENTS Inc., INVERTUB Sociedad Anonima, and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
INVERTUB S.A.
[LETTERHEAD OF INVERTUB SOCIEDAD ANONIMA]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by INVERTUB Sociedad Anonima to sign
this statement, certify that the information set forth in this Schedule 13D is
true, complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SAN FAUSTIN N.V., SIDERCA Sociedad Anonima Industrial y
Comercial, SIDERCA INTERNATIONAL ApS, SIDERTUBES S.A., I.I.I. INDUSTRIAL
INVESTMENTS Inc., TENARIS S.A., and SIDTAM LIMITED.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
[LETTERHEAD OF SIDTAM LIMITED]
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I,
Fernando Mantilla, attorney duly authorized by SIDTAM LIMITED to sign this
statement, certify that the information set forth in this Schedule 13D is true,
complete and correct.
Pursuant to Rule 13d- 1 (f) (1), the undersigned joins in the filing of
this Schedule 13D on his own behalf and on behalf of ROBERTO ROCCA, ROCCA &
PARTNERS S.A., SAN FAUSTIN N.V., SIDERCA Sociedad Anonima Industrial y
Comercial, SIDERCA INTERNATIONAL ApS, SIDERTUBES S.A., I.I.I. INDUSTRIAL
INVESTMENTS Inc., TENARIS S.A., and INVERTUB Sociedad Anonima.
December 20, 2002
/s/ Fernando Mantilla
---------------------
Fernando Mantilla
Attorney-in-fact
EXHIBIT INDEX:
99.1 Press release of Tenaris, dated December 16, 2002, announcing the
results of the Exchange Offer.
99.2 Press release of Tenaris, dated December 16, 2002, announcing the new
composition of the board of directors of Tenaris.
99.3 Press release of TAMSA, dated December 16, 2002, announcing the number
of TAMSA Shares held by the public after completion of the Exchange
Offer.
99.4 Corporate reorganization agreement, dated September 13, 2002, between
Sidertubes S.A. and Tenaris S.A.
99.5 Powers of attorney (incorporated by reference to Amendments No. 23 and
34 to the Schedule 13D)
99.6 Written agreement of the Reporting Persons (included in signature
pages)