Tenaris 6K , S.a. 6-K

FORM 6 - K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a - 16 or 15d - 16 of

the Securities Exchange Act of 1934

As of November 4, 2011

TENARIS, S.A.

(Translation of Registrant's name into English)

TENARIS, S.A.

29 avenue de la Porte-Neuve

3rd Floor

L-2227 Luxembourg

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or 40-F.

Form 20-F ü Form 40-F___

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.

Yes No ü

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-__.

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' Consolidated Condensed Interim Financial Statements for the nine-month period ended September 30, 2011.

SIGNATURE

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.

Date: November 4, 2011

Tenaris, S.A.

By: /s/ Cecilia Bilesio

Cecilia Bilesio

Corporate Secretary

TENARIS S.A.

CONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS

SEPTEMBER 30, 2011

29, Avenue de la Porte-Neuve – 3rd Floor.

L - 2227 Luxembourg

Tenaris S.A. Consolidated Condensed Interim Financial Statements for the nine-month period ended September 30, 2011

CONSOLIDATED CONDENSED INTERIM INCOME STATEMENT

(all amounts in thousands of U.S. dollars, unless otherwise stated)			Three-month period ended September 30,				Nine-month period ended September 30,
		Notes	2011		2010		2011		2010
Continuing operations			(Unaudited)				(Unaudited)
Net sales		3	2,494,840		2,027,242		7,221,927		5,647,725
Cost of sales	3 & 4		(1,548,822	)	(1,252,583	)	(4,506,632	)	(3,423,055	)
Gross profit			946,018		774,659		2,715,295		2,224,670
Selling, general and administrative expenses	3 & 5		(462,415	)	(370,267	)	(1,380,530	)	(1,108,798	)
Other operating income (expense), net		3	1,654		694		4,303		3,857
Operating income			485,257		405,086		1,339,068		1,119,729
Interest income		6	5,547		13,968		19,747		25,468
Interest expense		6	(14,073	)	(10,003	)	(39,362	)	(51,961	)
Other financial results		6	28,019		(16,223	)	16,669		(15,900	)
Income before equity in earnings of associated companies and income tax			504,750		392,828		1,336,122		1,077,336
Equity in earnings of associated companies			1,514		15,575		48,519		58,389
Income before income tax			506,264		408,403		1,384,641		1,135,725
Income tax			(140,776	)	(105,696	)	(390,253	)	(315,838	)
Income for the period			365,488		302,707		994,388		819,887

Attributable to:
Equity holders of the Company			324,991		304,812		931,583		806,459
Non-controlling interests			40,497		(2,105	)	62,805		13,428
			365,488		302,707		994,388		819,887

Earnings per share attributable to the equity holders of the Company during the period:
Weighted average number of ordinary shares (thousands)		7	1,180,537		1,180,537		1,180,537		1,180,537
Continuing operations
Basic and diluted earnings per share (U.S. dollars per share)		7	0.28		0.26		0.79		0.68
Basic and diluted earnings per ADS (U.S. dollars per ADS)		7	0.55		0.52		1.58		1.37

CONSOLIDATED CONDENSED INTERIM STATEMENT OF COMPREHENSIVE INCOME

(all amounts in thousands of U.S. dollars)	Three-month period ended September 30,						Nine-month period ended September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Income for the period		365,488			302,707			994,388			819,887
Other comprehensive income:
Currency translation adjustment		(466,628	)		215,268			(231,136	)		64,382
Changes in the fair value of derivatives held as cash flow hedges		(18,389	)		7,108			(12,599	)		4,913
Share of other comprehensive income of associates:
- Currency translation adjustment		(36,776	)		7,647			(31,127	)		9,672
- Changes in the fair value of derivatives held as cash flow hedges		447			283			1,279			514
Income tax relating to components of other comprehensive income (*)		(1,090	)		(1,928	)		(2,762	)		(1,466	)
Other comprehensive income for the period, net of tax		(522,436	)		228,378			(276,345	)		78,015
Total comprehensive income for the period		(156,948	)		531,085			718,043			897,902
Attributable to:
Equity holders of the Company		(125,295	)		496,330			695,205			855,727
Non-controlling interests		(31,653	)		34,755			22,838			42,175
		(156,948	)		531,085			718,043			897,902

(*) Relates to cash flow hedges

The accompanying notes are an integral part of these Consolidated Condensed Interim Financial Statements. These Consolidated Condensed Interim Financial Statements should be read in conjunction with our audited Consolidated Financial Statements and notes for the fiscal year ended December 31, 2010.

Tenaris S.A. Consolidated Condensed Interim Financial Statements for the nine-month period ended September 30, 2011

CONSOLIDATED CONDENSED INTERIM STATEMENT OF FINANCIAL POSITION

(all amounts in thousands of U.S. dollars)		At September 30, 2011			At December 31, 2010
	Notes	(Unaudited)
ASSETS
Non-current assets
Property, plant and equipment, net	8		4,029,640			3,780,580
Intangible assets, net	9		3,434,038			3,581,816
Investments in associated companies			669,958			671,855
Other investments			48,238			43,592
Deferred tax assets			217,219			210,523
Receivables			138,509	8,537,602		120,429	8,408,795
Current assets
Inventories			2,772,199			2,460,384
Receivables and prepayments			241,974			282,536
Current tax assets			170,405			249,317
Trade receivables			1,798,844			1,421,642
Available for sale assets	13		21,572			21,572
Other investments			634,238			676,224
Cash and cash equivalents			764,787	6,404,019		843,861	5,955,536

Total assets				14,941,621			14,364,331
EQUITY
Capital and reserves attributable to the Company’s equity holders				10,344,372			9,902,359
Non-controlling interests				644,721			648,221
Total equity				10,989,093			10,550,580
LIABILITIES
Non-current liabilities
Borrowings			177,120			220,570
Deferred tax liabilities			852,279			934,226
Other liabilities			225,878			193,209
Provisions			79,057			83,922
Trade payables			2,378	1,336,712		3,278	1,435,205
Current liabilities
Borrowings			994,331			1,023,926
Current tax liabilities			270,732			207,652
Other liabilities			356,959			233,590
Provisions			40,285			25,101
Customer advances			78,364			70,051
Trade payables			875,145	2,615,816		818,226	2,378,546
Total liabilities				3,952,528			3,813,751
Total equity and liabilities				14,941,621			14,364,331

Contingencies, commitments and restrictions to the distribution of profits are disclosed in Note 10.

Tenaris S.A. Consolidated Condensed Interim Financial Statements for the nine-month period ended September 30, 2011

CONSOLIDATED CONDENSED INTERIM STATEMENT OF CHANGES IN EQUITY

(all amounts in thousands of U.S. dollars)

	Attributable to equity holders of the Company
	Share Capital (1)		Legal Reserves		Share Premium		Currency Translation Adjustment			Other Reserves			Retained Earnings (2)			Total			Non-controlling interests			Total
																						(Unaudited)
Balance at January 1, 2011		1,180,537		118,054		609,733		108,419			15,809			7,869,807			9,902,359			648,221			10,550,580

Income for the period		-		-		-		-			-			931,583			931,583			62,805			994,388
Currency translation adjustment		-		-		-		(190,232	)		-			-			(190,232	)		(40,904	)		(231,136	)
Hedge reserve, net of tax		-		-		-		-			(16,298	)		-			(16,298	)		937			(15,361	)
Share of other comprehensive income of associates		-		-		-		(31,127	)		1,279			-			(29,848	)		-			(29,848	)
Other comprehensive income for the period		-		-		-		(221,359	)		(15,019	)		-			(236,378	)		(39,967	)		(276,345	)
Total comprehensive income for the period		-		-		-		(221,359	)		(15,019	)		931,583			695,205			22,838			718,043
Acquisition of non-controlling interests		-		-		-		-			(1,940	)		-			(1,940	)		(14,639	)		(16,579	)
Treasury shares held by associated companies		-		-		-		-			(3,339	)		-			(3,339	)		-			(3,339	)
Dividends paid in cash		-		-		-		-			-			(247,913	)		(247,913	)		(11,699	)		(259,612	)
Balance at September 30, 2011		1,180,537		118,054		609,733		(112,940	)		(4,489	)		8,553,477			10,344,372			644,721			10,989,093

	Attributable to equity holders of the Company
	Share Capital (1)		Legal Reserves		Share Premium		Currency Translation Adjustment		Other Reserves			Retained Earnings			Total			Non-controlling interests			Total
																					(Unaudited)
Balance at January 1, 2010		1,180,537		118,054		609,733		29,533		10,484			7,143,823			9,092,164			628,672			9,720,836

Income for the period		-		-		-		-		-			806,459			806,459			13,428			819,887
Currency translation adjustment		-		-		-		35,862		-			-			35,862			28,520			64,382
Hedge reserve, net of tax		-		-		-		-		3,220			-			3,220			227			3,447
Share of other comprehensive income of associates		-		-		-		9,672		514			-			10,186			-			10,186
Other comprehensive income for the period		-		-		-		45,534		3,734			-			49,268			28,747			78,015
Total comprehensive income for the period		-		-		-		45,534		3,734			806,459			855,727			42,175			897,902
Acquisition and increase of non-controlling interests		-		-		-		-		(366	)		-			(366	)		(2,595	)		(2,961	)
Dividends paid in cash		-		-		-		-		-			(247,913	)		(247,913	)		(19,019	)		(266,932	)
Balance at September 30, 2010		1,180,537		118,054		609,733		75,067		13,852			7,702,369			9,699,612			649,233			10,348,845

(1) The Company has an authorized share capital of a single class of 2.5 billion shares having a nominal value of USD1.00 per share. As of September 30, 2011 and 2010 there were 1,180,536,830 shares issued. All issued shares are fully paid.

(2) The Distributable Reserve and Retained Earnings as of September 30, 2011 calculated in accordance with Luxembourg Law are disclosed in Note 10.

Tenaris S.A. Consolidated Condensed Interim Financial Statements for the six-month period ended June 30, 2003

CONSOLIDATED CONDENSED INTERIM STATEMENT OF CASH FLOWS

(all amounts in thousands of U.S. dollars)		Nine-month period ended September 30,
	Note	2011			2010
Cash flows from operating activities		(Unaudited)
Income for the period			994,388			819,887
Adjustments for:
Depreciation and amortization	8 & 9		400,465			377,890
Income tax accruals less payments			107,008			(67,542	)
Equity in earnings of associated companies			(48,519	)		(58,885	)
Interest accruals less payments, net			(28,455	)		20,313
Changes in provisions			10,319			5,280
Changes in working capital			(489,686	)		(491,392	)
Other, including currency translation adjustment			(118,460	)		11,430
Net cash provided by operating activities			827,060			616,981

Cash flows from investing activities
Capital expenditures	8 & 9		(673,930	)		(561,218	)

Proceeds from disposal of property, plant and equipment and intangible assets			3,339			6,961
Dividends and distributions received from associated companies			17,229			13,732
Investments in short terms securities			41,986			(62,323	)
Net cash used in investing activities			(611,376	)		(602,848	)

Cash flows from financing activities
Dividends paid			(247,913	)		(247,913	)
Dividends paid to non-controlling interests in subsidiaries			(11,699	)		(19,019	)
Acquisitions of non-controlling interests	11		(16,579	)		(2,961	)
Proceeds from borrowings			713,518			369,718
Repayments of borrowings			(715,262	)		(733,868	)
Net cash used in financing activities			(277,935	)		(634,043	)

Decrease in cash and cash equivalents			(62,251	)		(619,910	)
Movement in cash and cash equivalents
At the beginning of the period			820,165			1,528,707
Effect of exchange rate changes			(3,798	)		(8,028	)
Decrease in cash and cash equivalents			(62,251	)		(619,910	)
At September 30,			754,116			900,769

		At September 30,
Cash and cash equivalents			2011			2010
Cash and bank deposits			764,787			919,027
Bank overdrafts			(10,671	)		(18,258	)
			754,116			900,769

NOTES TO THE CONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS

1	General information
2	Accounting policies and basis of presentation
3	Segment information
4	Cost of sales
5	Selling, general and administrative expenses
6	Financial results
7	Earnings and dividends per share
8	Property, plant and equipment, net
9	Intangible assets, net
10	Contingencies, commitments and restrictions to the distribution of profits
11	Other acquisitions
12	Related party transactions
13	Nationalization of Venezuelan Subsidiaries
14	Recently issued accounting pronouncements relevant for Tenaris
15	Subsequent event

NOTES TO THE CONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS

(In the notes all amounts are shown in U.S. dollars, unless otherwise stated)

1	General information

Tenaris S.A. (the "Company") was established as a public limited liability company (societé anonyme) under the laws of the Grand-Duchy of Luxembourg on December 17, 2001. The Company holds, either directly or indirectly, controlling interests in various subsidiaries in the steel pipe manufacturing and distribution businesses. References in these Consolidated Condensed Interim Financial Statements to "Tenaris" refer to Tenaris S.A. and its consolidated subsidiaries. A list of the principal Company’s subsidiaries is included in Note 31 to the audited Consolidated Financial Statements for the year ended December 31, 2010.

The Company’s shares are listed on the Milan Stock Exchange, the Buenos Aires Stock Exchange and the Mexico City Stock Exchange; the Company’s American Depositary Securities (“ADS”) are listed on the New York Stock Exchange.

These Consolidated Condensed Interim Financial Statements were approved for issue by the Company’s Board of Directors on November 3, 2011.

2	Accounting policies and basis of presentation

These Consolidated Condensed Interim Financial Statements have been prepared in accordance with IAS 34, “Interim Financial Reporting”. The accounting policies used in the preparation of these Consolidated Condensed Interim Financial Statements are consistent with those used in the audited Consolidated Financial Statements for the year ended December 31, 2010. These Consolidated Condensed Interim Financial Statements should be read in conjunction with the audited Consolidated Financial Statements for the year ended December 31, 2010, which have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standard Board (“IASB”) and adopted by the European Union (“EU”).

Whenever necessary, comparative amounts have been reclassified to conform to changes in presentation in the current year.

The preparation of Consolidated Condensed Interim Financial Statements in conformity with IFRS requires management to make certain accounting estimates and assumptions that might affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the balance sheet dates, and the reported amounts of revenues and expenses for the reported periods. Actual results may differ from these estimates.

Material inter-company transactions, balances and unrealized gains (losses) on transactions between Tenaris subsidiaries have been eliminated in consolidation. However, since the functional currency of some subsidiaries is its respective local currency, some financial gains (losses) arising from inter-company transactions are generated. These are included in the Consolidated Condensed Interim Income Statement under Other financial results.

3 Segment information

Reportable operating segments

	(Unaudited)
(all amounts in thousands of U.S. dollars)	Tubes			Projects			Other			Total
Nine-month period ended September 30, 2011
Net sales		6,115,395			538,145			568,387			7,221,927
Cost of sales		(3,752,219	)		(358,026	)		(396,387	)		(4,506,632	)
Gross profit		2,363,176			180,119			172,000			2,715,295
Selling, general and administrative expenses		(1,244,690	)		(68,936	)		(66,904	)		(1,380,530	)
Other operating income (expenses), net		4,841			(623	)		85			4,303
Operating income		1,123,327			110,560			105,181			1,339,068

Depreciation and amortization		373,633			15,940			10,892			400,465
Capital expenditures		617,185			52,001			4,744			673,930
Nine-month period ended September 30, 2010
Net sales		4,917,357			282,593			447,775			5,647,725
Cost of sales		(2,914,316	)		(185,042	)		(323,697	)		(3,423,055	)
Gross profit		2,003,041			97,551			124,078			2,224,670
Selling, general and administrative expenses		(998,796	)		(59,519	)		(50,483	)		(1,108,798	)
Other operating income (expenses), net		(1,910	)		2,104			3,663			3,857
Operating income		1,002,335			40,136			77,258			1,119,729

Depreciation and amortization		351,468			14,730			11,692			377,890
Capital expenditures		524,419			33,681			3,118			561,218

Geographical information

	(Unaudited)
(all amounts in thousands of U.S. dollars)	North America		South America		Europe		Middle East & Africa		Far East & Oceania		Total
Nine-month period ended September 30, 2011
Net sales		3,122,603		1,886,460		839,378		960,245		413,241		7,221,927
Depreciation and amortization		211,529		78,622		88,491		1,318		20,505		400,465
Capital expenditures		410,356		118,701		121,699		12,784		10,390		673,930

Nine-month period ended September 30, 2010
Net sales		2,391,673		1,391,724		586,708		964,960		312,660		5,647,725
Depreciation and amortization		192,572		78,830		85,796		950		19,742		377,890
Capital expenditures		370,141		81,536		90,661		11,003		7,877		561,218

Allocation of net sales to geographical information is based on customer location. Allocation of depreciation and amortization is based on the geographical location of the underlying assets.

There are no revenues from external customers attributable to the Company’s country of incorporation (Luxembourg). For geographical information purposes, “North America” comprises Canada, Mexico and the USA; “South America” comprises principally Argentina, Brazil, Colombia, Ecuador, Peru and Venezuela; “Europe” comprises principally Italy, Norway and Romania; “Middle East and Africa” comprises principally Algeria, Egypt, Kazakhstan, Kuwait, Nigeria, Saudi Arabia and United Arab Emirates; “Far East and Oceania” comprises principally Australia, China, Indonesia and Japan.

4 Cost of sales

	Nine-month period ended September 30,
(all amounts in thousands of U.S. dollars)	2011			2010
	(Unaudited)
Inventories at the beginning of the period		2,460,384			1,687,059

Plus: Charges of the period
Raw materials, energy, consumables and other		3,231,953			2,696,198
Services and fees		268,064			242,266
Labor cost		836,662			690,777
Depreciation of property, plant and equipment		233,968			215,221
Amortization of intangible assets		3,892			2,610
Maintenance expenses		159,886			132,662
Allowance for obsolescence		5,833			(30,104	)
Taxes		3,883			5,334
Other		74,306			51,308
		4,818,447			4,006,272
Less: Inventories at the end of the period		(2,772,199	)		(2,270,276	)
		4,506,632			3,423,055

5 Selling, general and administrative expenses

	Nine-month period ended September 30,
(all amounts in thousands of U.S. dollars)	2011		2010
	(Unaudited)
Services and fees		164,494		154,218
Labor cost		400,204		332,500
Depreciation of property, plant and equipment		8,809		9,415
Amortization of intangible assets		153,796		150,644
Commissions, freight and other selling expenses		403,461		306,534
Provisions for contingencies		37,917		25,028
Allowances for doubtful accounts		5,233		(14,496	)
Taxes		109,304		88,412
Other		97,312		56,543
		1,380,530		1,108,798

6 Financial results

	Nine-month period ended September 30,
(all amounts in thousands of U.S. dollars)	2011			2010
	(Unaudited)
Interest income		19,747			25,468
Interest expense (*)		(39,362	)		(51,961	)
Interest net		(19,615	)		(26,493	)

Net foreign exchange transaction results		63,812			(12,450	)
Foreign exchange derivatives contracts results (**)		(42,276	)		(1,490	)
Other		(4,867	)		(1,960	)
Other financial results		16,669			(15,900	)

Net financial results		(2,946	)		(42,393	)

6 Financial results (Cont.)

Net foreign exchange transaction results include those amounts that affect the gross margin of certain subsidiaries which functional currencies are different from the U.S. dollar.

(*) Includes interest rate swap losses of $5.2 million and $11.6 million for the nine-month period ended September 30, 2011 and September 30, 2010, respectively.

(**) Includes a loss of $7.7 million and a loss of $2.0 million on an identified embedded derivative for the nine-month periods ended September 30, 2011 and September 30, 2010, respectively.

7 Earnings and dividends per share

Earnings per share are calculated by dividing the net income attributable to equity holders of the Company by the daily weighted average number of ordinary shares in issue during the period.

	Nine-month period ended September 30,
	2011		2010
	(Unaudited)
Net income attributable to equity holders		931,583		806,459
Weighted average number of ordinary shares in issue (thousands)		1,180,537		1,180,537
Basic and diluted earnings per share (U.S. dollars per share)		0.79		0.68
Basic and diluted earnings per ADS (U.S. dollars per ADS) (*)		1.58		1.37

(*) Each ADS equals two shares

On June 1, 2011 the Company’s shareholders approved an annual dividend in the amount of $0.34 per share ($0.68 per ADS). The amount approved included the interim dividend previously paid in November 2010, in the amount of $0.13 per share ($0.26 per ADS). The balance, amounting to $0.21 per share ($0.42 per ADS), was paid on June 23, 2011. In the aggregate, the interim dividend paid in November 2010 and the balance paid in June 2011 amounted to approximately $401 million.

8 Property, plant and equipment, net

(all amounts in thousands of U.S. dollars)	2011			2010
	(Unaudited)
Nine-month period ended September 30,
Opening net book amount		3,780,580			3,254,587
Currency translation adjustment		(150,383	)		16,971
Additions		645,751			543,394
Disposals		(3,339	)		(6,937	)
Transfers		(192	)		(7,225	)
Depreciation charge		(242,777	)		(224,636	)
At September 30,		4,029,640			3,576,154

9 Intangible assets, net

(all amounts in thousands of U.S. dollars)	2011			2010
	(Unaudited)
Nine-month period ended September 30,
Opening net book amount		3,581,816			3,670,920
Currency translation adjustment		(18,461	)		6,420
Additions		28,179			17,824
Disposals		-			(24	)
Transfers		192			1,622
Amortization charge		(157,688	)		(153,254	)
At September 30,		3,434,038			3,543,508

10 Contingencies, commitments and restrictions to the distribution of profits

Contingencies

This note should be read in conjunction with Note 26 to the Company’s audited Consolidated Financial Statements for the year ended December 31, 2010.

Conversion of tax loss carry-forwards

On December 18, 2000, the Argentine tax authorities notified Siderca S.A.I.C., a Tenaris subsidiary organized in Argentina (“Siderca”), of an income tax assessment related to the conversion of tax loss carry-forwards into Debt Consolidation Bonds under Argentine Law No. 24.073. The adjustments proposed by the tax authorities represent an estimated contingency of ARS 105 million (approximately $25 million) at September 30, 2011, in taxes and penalties. Tenaris believes that it is not probable that the ultimate resolution of the matter will result in an obligation. Accordingly, no provision was recorded in these Consolidated Condensed Interim Financial Statements.

Settlement with U.S. governmental authorities

In 2009, Tenaris announced that it had learned from one of its customers in Central Asia that certain sales agency payments made by one of the Company’s subsidiaries may have improperly benefited employees of the customer and other persons, potentially in violation of the U.S. Foreign Corrupt Practices Act (FCPA). The audit committee of the Company’s board of directors engaged external counsel in connection with a review of these payments and related matters. The Company voluntarily notified the U.S. Securities and Exchange Commission (“SEC”) and the U.S. Department of Justice (“DOJ”), and cooperated in the investigations conducted by the SEC and the DOJ.

On May 17, 2011, Tenaris settled the SEC’s and the DOJ’s FCPA investigations. The settlements describe conduct by former Tenaris regional sales personnel relating to payments to officials of a state controlled oil and gas production company in the Caspian region, as well as certain record keeping and internal control failures relating to this conduct. The settlements also state that Tenaris voluntarily disclosed this conduct to the SEC and the DOJ in a timely and complete manner, conducted an internal investigation, provided thorough, real time cooperation to the SEC and the DOJ, and undertook remediation efforts, including voluntary enhancements to its compliance program. In the settlement with the SEC, Tenaris agreed to pay approximately $5.4 million in disgorgement of profits and interest, and in the settlement with the DOJ Tenaris agreed to pay a $3.5 million penalty. Tenaris timely paid those amounts to the DOJ and the SEC.

Commitments

Set forth is a description of Tenaris’s main outstanding commitments:

●

A Tenaris company is a party to a five-year contract with Nucor Corporation, under which it committed to purchase from Nucor steel coils, with deliveries starting in January 2007 on a monthly basis. The Tenaris company has negotiated a one-year extension to the original contract, through December 2012. Prices are adjusted quarterly in accordance with market conditions. As of September 30, 2011 the estimated aggregate amount of the contract at current prices is approximately $ 408 million.

●

A Tenaris company is a party to a ten year raw material purchase contract with Rio Tinto Fer et Titane (ex- QIT), under which it committed to purchase steel bars, with deliveries starting in July 2007. As of September 30, 2011 the estimated aggregate amount of the remaining commitments on the contract at current prices is approximately $214 million. The contract allows the Tenaris company to claim lower commitments in market downturns and severe market downturns subject to certain limitations.

10 Contingencies, commitments and restrictions to the distribution of profits (Cont.)

Restrictions to the distribution of profits and payment of dividends

As of September 30, 2011, equity as defined under Luxembourg law and regulations consisted of:

(all amounts in thousands of U.S. dollars)	(Unaudited)
Share capital		1,180,537
Legal reserve		118,054
Share premium		609,733
Retained earnings including net income for the nine month period ended September 30, 2011		23,189,137
Total equity in accordance with Luxembourg law		25,097,461

At least 5% of the Company’s net income per year, as calculated in accordance with Luxembourg law and regulations, must be allocated to the creation of a legal reserve equivalent to 10% of the Company’s share capital. As of December 31, 2010, this reserve is fully allocated and additional allocations to the reserve are not required under Luxembourg law. Dividends may not be paid out of the legal reserve.

The Company may pay dividends to the extent, among other conditions, that it has distributable retained earnings calculated in accordance with Luxembourg law and regulations.

At September 30, 2011, distributable amount under Luxembourg law totals $23.8 billion, as detailed below.

(all amounts in thousands of U.S. dollars)	(Unaudited)
Retained earnings at December 31, 2010 under Luxembourg law		16,631,947
Gain from the transfer of shares in affiliated undertakings (*)		6,828,757
Other income and expenses for the nine month period ended September 30, 2011		(23,654	)
Dividends paid		(247,913	)
Retained earnings at September 30, 2011 under Luxembourg law		23,189,137
Share premium		609,733
Distributable amount at September 30, 2011 under Luxembourg law		23,798,870

(*) As explained in Note 33 to the Company’s audited Consolidated Financial Statements for the year ended December 31, 2010, in the fourth quarter of 2010, the Company carried out a multi-step corporate reorganization, which included, among other transactions, the contribution of most of the Company’s assets and liabilities to a wholly-owned, newly-incorporated Luxembourg subsidiary and the restructuring of indirect holdings in certain subsidiaries. The second phase of the corporate reorganization was made in September 2011, and resulted in a revaluation of the accounting value (under Luxembourg GAAP) of the assets then contributed.

11 Other acquisitions

Non controlling interests

During the nine-month period ended September 30, 2011 and 2010, additional shares of certain Tenaris subsidiaries were acquired from non-controlling shareholders for approximately $16.6 million and $3.4 million, respectively.

12 Related party transactions

As of September 30, 2011:

●	San Faustin S.A., a Luxembourg public limited liability company (société anonyme) (“San Faustin”), owned 713,605,187 shares in the Company, representing 60.45% of the Company’s capital and voting rights.

●	San Faustin owned all of its shares in the Company through its wholly-owned subsidiary Techint Holdings S.ar.l., a Luxembourg private limited liability company (société à responsabilité limitée) (“Techint”).

●	Rocca & Partners Stichting Administratiekantoor Aandelen San Faustin, a Dutch private foundation (Stichting) (“RP STAK”) held shares in San Faustin sufficient in number to control San Faustin.

●	No person or group of persons controls RP STAK.

12 Related party transactions (Cont.)

Based on the information most recently available to the Company, Tenaris’ directors and senior management as a group owned 0.12% of the Company’s outstanding shares.

At September 30, 2011, the closing price of the Ternium S.A. (“Ternium”) ADS as quoted on the New York Stock Exchange was $20.83 per ADS, giving Tenaris’ ownership stake a market value of approximately $478.5 million. At September 30, 2011, the carrying value of Tenaris’ ownership stake in Ternium, based on Ternium’s IFRS financial statements was approximately $651.6 million.

Transactions and balances disclosed as “Associated” companies are those with companies over which Tenaris exerts significant influence or joint control in accordance with IFRS, but does not have control. All other transactions with related parties which are not Associated and which are not consolidated are disclosed as “Other”.

The following transactions were carried out with related parties:

(all amounts in thousands of U.S. dollars)

	Nine-month period ended September 30, 2011	(Unaudited)
		Associated (1)		Other		Total
(i)	Transactions
	(a) Sales of goods and services
	Sales of goods		29,361		78,916		108,277
	Sales of services		11,104		3,527		14,631
			40,465		82,443		122,908

	(b) Purchases of goods and services
	Purchases of goods		108,814		16,201		125,015
	Purchases of services		65,604		90,562		156,166
			174,418		106,763		281,181

	Nine-month period ended September 30, 2010	(Unaudited)
		Associated (1)		Other		Total
(i)	Transactions
	(a) Sales of goods and services
	Sales of goods		26,432		41,965		68,397
	Sales of services		8,580		2,128		10,708
			35,012		44,093		79,105

	(b) Purchases of goods and services
	Purchases of goods		135,358		20,088		155,446
	Purchases of services		43,865		106,595		150,460
			179,223		126,683		305,906

	At September 30, 2011	(Unaudited)
		Associated (1)			Other			Total
(ii)	Period-end balances

	(a) Arising from sales / purchases of goods / services
	Receivables from related parties		45,108			9,721			54,829
	Payables to related parties		(49,256	)		(11,972	)		(61,228	)
			(4,148	)		(2,251	)		(6,399	)

	(b) Financial debt
	Borrowings		(5,967	)		(1,187	)		(7,154	)

12 Related party transactions (Cont.)

	At December 31, 2010
		Associated (1)			Other			Total
(ii)	Year-end balances

	(a) Arising from sales / purchases of goods / services
	Receivables from related parties		39,761			28,557			68,318
	Payables to related parties		(17,534	)		(19,110	)		(36,644	)
			22,227			9,447			31,674

	(b) Financial debt
	Borrowings		(3,843	)		-			(3,843	)

(1) Includes Ternium S.A. and its subsidiaries (“Ternium”), Condusid C.A. (“Condusid”), Finma S.A.I.F (“Finma”), Lomond Holdings B.V.

group (“Lomond”), Socotherm Brasil S.A. (“Socotherm”) and Hydril Jindal International Private Ltd (“Hydril Jindal”).

13 Nationalization of Venezuelan Subsidiaries

In May 2009, within the framework of Decree Law 6058, Venezuela’s President Hugo Chávez announced the nationalization of, among other companies, the Company's majority-owned subsidiaries TAVSA - Tubos de Acero de Venezuela S.A. ("Tavsa") and, Matesi Materiales Siderúrgicos S.A ("Matesi"), and Complejo Siderúrgico de Guayana, C.A ("Comsigua"), in which the Company has a non-controlling interest (collectively, the “Venezuelan Companies").

In July 2009, President Chávez issued Decree 6796, which ordered the acquisition of the Venezuelan Companies' assets and provided that Tavsa's assets would be held by the Ministry of Energy and Oil, while Matesi and Comsigua's assets would be held by the Ministry of Basic Industries and Mining. Decree 6796 also required the Venezuelan government to create certain committees at each of the Venezuelan Companies; each transition committee must ensure the nationalization of each Venezuelan Company and the continuity of its operations, and each technical committee (to be composed of representatives of Venezuela and the private sector) must negotiate over a 60-day period (extendable by mutual agreement) a fair price for each Venezuelan Company to be transferred to Venezuela. In the event the parties failed to reach agreement by the expiration of the 60-day period (or any extension thereof), the applicable Ministry would assume control and exclusive operation of the relevant Venezuelan Company, and the Executive Branch would be required to order their expropriation in accordance with the Venezuelan Expropriation Law. The Decree also specifies that all facts and activities there under are subject to Venezuelan law and any disputes relating thereto must be submitted to Venezuelan courts.

In August 2009, Venezuela, acting through the transition committee appointed by the Minister of Basic Industries and Mines of Venezuela, unilaterally assumed exclusive operational control over Matesi, and in November, 2009, Venezuela, acting through PDVSA Industrial S.A. (a subsidiary of Petróleos de Venezuela S.A.), formally assumed exclusive operational control over the assets of Tavsa.

In 2010, Venezuela’s National Assembly declared Matesi’s assets to be of public and social interest and ordered the Executive Branch to take the necessary measures for the expropriation of such assets. In June 2011, President Chávez issued Decree 8280, which orders the expropriation of Matesi’s assets as may be required for the implementation of a state-owned project for the production, sale and distribution of briquettes, and further instructs to commence negotiations and take any actions required for the acquisition of such assets.

Tenaris’s investments in the Venezuelan companies are protected under applicable bilateral investment treaties, including the bilateral investment treaty between Venezuela and the Belgian-Luxembourgish Union, and Tenaris continues to reserve all of its rights under contracts, investment treaties and Venezuelan and international law. Tenaris has also consented to the jurisdiction of the ICSID in connection with the nationalization process.

In August 2011, Tenaris and its wholly-owned subsidiary Talta - Trading e Marketing Sociedad Unipessoal Lda (Talta), initiated arbitration proceedings against Venezuela before the International Centre for Settlement of Investment Disputes (ICSID) in Washington D.C., pursuant to the bilateral investment treaties entered into by Venezuela with the Belgium-Luxembourg Economic Union and Portugal. In these proceedings, Tenaris and Talta seek adequate and effective compensation for the expropriation of their investment in Matesi. This case was registered by the ICSID on September 30, 2011.

13 Nationalization of Venezuelan Subsidiaries (Cont.)

Based on the facts and circumstances described above and following the guidance set forth by IAS 27R, the Company ceased consolidating the results of operations and cash flows of the Venezuelan Companies as from June 30, 2009, and classified its investments in the Venezuelan Companies as financial assets based on the definitions contained in paragraphs 11(c)(i) and 13 of IAS 32.

The Company classified its interests in the Venezuelan Companies as available-for-sale investments since management believes they do not fulfill the requirements for classification within any of the remaining categories provided by IAS 39 and such classification is the most appropriate accounting treatment applicable to non-voluntary dispositions of assets.

Tenaris or its subsidiaries have net receivables with the Venezuelan Companies as of September 30, 2011 for a total amount of approximately $28 million.

The Company records its interest in the Venezuelan Companies at its carrying amount at September 30, 2009, and not at fair value, following the guidance set forth by paragraphs 46(c), AG80 and AG81 of IAS 39.

14 Recently issued accounting pronouncements relevant for Tenaris

(i) International Accounting Standard 19 (amended 2011), “Employee benefits”

In June 2011, the IASB issued IAS 19 (amended 2011), “Employee benefits”, which makes significant changes to the recognition and measurement of defined benefit pension expense and termination benefits, and to the disclosures for all employee benefits. IAS 19 (amended 2011) must be applied for annual periods beginning on or after 1 January 2013.

(ii) International Accounting Standard 1 (amended 2011), “Presentation of financial statements”

In June 2011, the IASB issued IAS 1 (amended 2011), “Presentation of financial statements”. The amendment requires entities to separate items presented in OCI into two groups, based on whether or not they may be recycled to profit or loss in the future. IAS 1 (amended 2011) must be applied for annual periods beginning on or after 1 July 2012.

(iii) International Financial Reporting Standard 10, “Consolidated financial statements”

In May 2011, the IASB issued IFRS 10, “Consolidated financial statements”. IFRS 10 replaces all of the guidance on control and consolidation in IAS 27 and SIC-12. IFRS 10 must be applied for annual periods beginning on or after 1 January 2013.

(iv) International Financial Reporting Standard 12, “Disclosures of interest in other entities”

In May 2011, the IASB issued IFRS 12, “Disclosures of interest in other entities”. This standard includes the disclosure requirements for all forms of interest in other entities. IFRS 12 must be applied for annual periods beginning on or after 1 January 2013.

(v) International Financial Reporting Standard 13, “Fair value measurement”

In May 2011, the IASB issued IFRS 13, “Fair value measurement”. IFRS 13 explains how to measure fair value and aims to enhance fair value disclosures. IFRS 13 must be applied for annual periods beginning on or after 1 January 2013.

These standards, amendments to standards and interpretations are not effective for the financial year beginning January 1, 2011 and have not been early adopted.

The Company's management has not assessed the potential impact that the application of these standards may have on the Company's financial condition or results of operations.

15 Subsequent event

Interim dividend payment

On November 3, 2011, the company’s board of directors approved the payment of an interim dividend of $0.13 per share ($0.26 per ADS), or approximately $153 million, on November 24, 2011 with an ex-dividend date of November 21, 2011.

	Ricardo Soler
	Chief Financial Officer

Tenaris (TS) 6-KTenaris, S.a. 6-K