LUXEMBOURG -- (Marketwire) -- 08/01/12 -- Tenaris S.A. (NYSE: TS) (BAE: TS) (BVM: TS) (MILAN: TEN) ("Tenaris") today announced its results for the quarter and semester ended June 30, 2012 with comparison to its results for the quarter and semester ended June 30, 2011.

Summary of 2012 Second Quarter Results

(Comparison with first quarter of 2012 and second quarter of 2011)

                                        Q2 2012     Q1 2012       Q2 2011

Net sales (US$ million)                 2,801.5  2,617.3    7% 2,403.1   17%

Operating income (US$ million)            620.9    566.2   10%   409.8   52%

Net income (US$ million)                  460.2    453.4    1%   304.7   51%

Shareholders' net income (US$ million)    461.1    443.8    4%   287.2   61%

Earnings per ADS (US$)                     0.78     0.75    4%    0.49   61%

Earnings per share (US$)                   0.39     0.38    4%    0.24   61%

EBITDA (US$ million)                      758.6    704.4    8%   545.8   39%

EBITDA margin (% of net sales)               27%      27%           23%

Our results during the second quarter continued to improve as our net sales rose sequentially and we consolidated the margin improvements we made in the first quarter. Higher sales of premium products for deepwater operations in the Gulf of Mexico and Brazil and in the Eastern Hemisphere regions, as well as a partial recovery of line pipe shipments in Brazil, more than offset the impact of seasonally lower sales in Canada.

Cash flow from operations remains strong and amounted to US$414.5 million for the quarter. However, we ended the quarter with a net debt position (total borrowings less cash and other current investments) of US$540.5 million, after the acquisition of Confab's non-controlling interests for US$ 758.5 million, the payment of US$295.1 million in dividends and capital expenditures of US$204.5 million.

Market Background and Outlook

Global demand for energy, in spite of the deteriorating economic climate in Europe, remains stable and energy companies are maintaining their programs in exploration and production activity for 2012. Demand for tubular products for complex applications is growing as investments take place in more difficult and unconventional operating environments.

With the recent volatility in oil prices and continuing low natural gas prices, drilling activity in North America is expected to decline by the end of the year, as lower gas drilling is not likely to be compensated by additional oil drilling. In the rest of the world, drilling activity should continue to increase led by the growth in the development of deepwater and unconventional reserves as well as complex conventional gas drilling.

In the second half of the year, sales to oil and gas customers, particularly in South America and in the Eastern Hemisphere, are expected to increase, while sales to the industrial markets will decline reflecting the slowdown in industrial activity, particularly in Europe.

Operating margins for the rest of 2012 are expected to remain close to current levels as mix improvements, lower raw material costs and increased efficiency in our industrial system offset the impact of lower prices in less differentiated segments.

Sales and operating income are expected to continue to show solid year on year growth during the remainder of the year but third quarter results will be affected by seasonal factors.

Analysis of 2012 Second Quarter Results

Sales volume (metric tons)             Q2 2012    Q1 2012        Q2 2011

Tubes - Seamless                       701,000  664,000   6%   633,000  11%

Tubes - Welded                         237,000  251,000  (6%)  198,000  20%

Tubes - Total                          938,000  915,000   3%   831,000  13%

Projects - Welded                       55,000   43,000  28%    68,000 (19%)

Total                                  993,000  958,000   4%   899,000  10%





                Tubes                 Q2 2012     Q1 2012        Q2 2011

(Net sales - $ million)

North America                         1,291.2  1,289.2     0%   946.0   36%

South America                           345.2    323.2     7%   327.9    5%

Europe                                  287.8    263.1     9%   279.0    3%

Middle East & Africa                    361.4    284.8    27%   303.7   19%

Far East & Oceania                      132.0    128.5     3%   141.2   (7%)

Total net sales ($ million)           2,417.6  2,288.7     6% 1,997.8   21%

Cost of sales (% of sales)                 59%      60%            63%

Operating income ($ million)            548.1    508.6     8%   319.4   72%

Operating income (% of sales)              23%      22%            16%

Net sales of tubular products and services increased 6% sequentially and 21% year on year. In North America, higher sequential sales in the United States, particularly in the Gulf of Mexico, and Mexico were offset by a seasonal reduction in sales in Canada. In South America, sales increased sequentially due primarily to higher shipments in Venezuela. In Europe, sales of OCTG products increased while sales to European distributors remain weak. In the Middle East & Africa, the sequential increase in sales was due to an improvement in the product mix and a strong level of shipments to Iraq. In the Far East&Oceania, higher sales of OCTG in China offset lower sales of other products in the region.

Operating income from tubular products and services increased 8% sequentially and 72% year on year. The sequential increase in operating income was mainly attributable to the increase in sales and a slight increase in the operating margin.

               Projects               Q2 2012     Q1 2012        Q2 2011

Net sales ($ million)                   187.8    140.1    34%   212.4  (12%)

Cost of sales (% of sales)                 64%      67%            65%

Operating income ($ million)             47.4     26.1    82%    51.5   (8%)

Operating income (% of sales)              25%      19%            24%

Projects net sales amounted to US$187.8 million in the second quarter of 2012, an increase of 34% sequentially and a decrease of 12% relative to the second quarter of 2011. Sequentially, the increase in sales was due primarily to an increase in shipments of line pipe to projects in Brazil following low deliveries in the previous quarter.

Operating income from Projects increased 82%, reflecting an increase in net sales and higher operating margins.

                Others                Q2 2012     Q1 2012        Q2 2011

Net sales ($ million)                   196.0    188.6     4%  192.9     2%

Cost of sales (% of sales)                 73%      71%           68%

Operating income ($ million)             25.5     31.5   (19%)  38.9   (35%)

Operating income (% of sales)              13%      17%           20%

Net sales of other products and services amounted to US$196.0 million in the second quarter of 2012, an increase of 4% sequentially and 2% relative to the second quarter of 2011. Despite the sequential increase in sales, mainly attributable to higher sales of sucker rods, operating income decrease due to lower operating margins.

Selling, general and administrative expenses, or SG&A, amounted to 17.4% of net sales in the second quarter of 2012, compared to 17.0% in the previous quarter and 19.5% in the second quarter of 2011.

Net interest expenses amounted to US$7.0 million in the second quarter of 2012, compared to US$0.3 million in the previous quarter and US$5.7 million in the second quarter of 2011. Sequentially net interest expenses increased due to an increase in our indebtedness to finance the acquisition of the non-controlling interests of Confab, in addition to lower income from our financial investments.

Other financial results generated a loss of US$16.5 million during the second quarter of 2012, compared to a gain of US$13.1 million in the previous quarter and a loss of US$12.4 million during the second quarter of 2011. These results largely reflect gains and losses on net foreign exchange transactions (US$27.8 million loss in IIQ12 compared with US$16.0 million gain in IQ12), which to a large extent are offset by changes to our net equity position, and the fair value of derivative instruments (US$13.0 million gain in IIQ12 compared with US$5.5 million loss in IQ12). These results were mainly attributable to an 11% devaluation of the Brazilian real over U.S. dollar denominated debt.

Equity in earnings of associated companies generated a gain of US$11.1 million in the second quarter of 2012, compared to a gain of US$19.2 million in the previous quarter and a gain of US$22.7 million in the second quarter of 2011. These gains were derived mainly from our equity investment in Ternium.

Income tax charges totalled US$148.3 million in the second quarter of 2012, equivalent to 25% of income before equity in earnings of associated companies and income tax, compared to 25% in the previous quarter and 28% in the second quarter of 2011.

Results attributable to non-controlling interests amounted to losses of US$0.9 million in the second quarter of 2012, compared to income of US$9.6 million in the previous quarter and income of US$17.5 million in the second quarter of 2011. Non-controlling interests during the quarter included only one month of our Brazilian operations' results, as in May 2012, we completed the acquisition of all its non-controlling interests.

Cash Flow and Liquidity of 2012 Second Quarter

Net cash provided by operations during the second quarter of 2012 was US$414.5 million, compared to US$604.7 million in the previous quarter and US$325.1 million in the second quarter of 2011. Working capital decreased by US$53.1 million during the second quarter of 2012, compared to an increase of US$5.0 million in the previous quarter and US$118.6 million in the second quarter of 2011.

Capital expenditures amounted to US$204.5 million in the second quarter of 2012, compared to US$196.4 million in the previous quarter and US$251.2 million in the second quarter of 2011.

At the end of the quarter, our net debt position (total borrowings less cash and other current investments) amounted to US$540.5 million, following the acquisition of Confab's non-controlling interests for US$758.5 million and a dividend payment of US$295.1 million in May.

Analysis of 2012 First Half Results

                                                                  Increase/

                                           H1 2012     H1 2011   (Decrease)

Net sales (US$ million)                     5,418.8     4,727.1          15%

Operating income (US$ million)              1,187.1       838.4          42%

Net income (US$ million)                      913.6       628.9          45%

Shareholders' net income (US$ million)        904.9       606.6          49%

Earnings per ADS (US$)                         1.53        1.03          49%

Earnings per share (US$)                       0.77        0.51          49%

EBITDA* (US$ million)                       1,463.0     1,103.8          33%

EBITDA margin (% of net sales)                   27%         23%

Net income attributable to equity holders in the Company during the first semester of 2012 was US$904.9 million, or US$0.77 per share (US$1.53 per ADS), which compares with net income attributable to equity holders in the Company during the first semester of 2011 of US$606.6 million, or US$0.51 per share (US$1.03 per ADS). Operating income was US$1,187.1 million, or 22% of net sales during the first semester of 2012, compared to US$838.4 million, or 18% of net sales during the first semester of 2011. Operating income plus depreciation and amortization for the first semester of 2012, was US$1,463.0 million, or 27% of net sales, compared to US$1,103.8 million, or 23% of net sales during the first semester of 2011.

Net Sales, Cost of Sales and Operating Income by segment

The following table shows our net sales by business segment for the periods indicated below:

                                                                 Increase/

Net sales ($ million)         H1 2012             H1 2011       (Decrease)

Tubes                        4,706.4    87%      3,965.1    84%         19%

Projects                       327.9     6%        387.3     8%        (15%)

Others                         384.6     7%        374.6     8%          3%

Total                        5,418.8   100%      4,727.1   100%         15%

The following table indicates our sales volume of seamless and welded pipes by business segment for the periods indicated below:

                                                                 Increase/

      Sales volume (metric tons)         H1 2012      H1 2011   (Decrease)

Tubes - Seamless                         1,365,000    1,254,000          9%

Tubes - Welded                             488,000      431,000         13%

Tubes - Total                            1,853,000    1,685,000         10%

Projects - Welded                           98,000      143,000        (31%)

Total                                    1,951,000    1,828,000          7%

Tubes

The following table indicates, for our Tubes business segment, net sales by geographic region, cost of sales as a percentage of net sales, operating income and operating income as a percentage of net sales for the periods indicated below:

                                                                 Increase/

                Tubes                   H1 2012      H1 2011    (Decrease)

(Net sales - $ million)

North America                             2,580.3      1,924.5          34%

South America                               668.5        646.1           3%

Europe                                      550.9        522.8           5%

Middle East & Africa                        646.2        601.5           7%

Far East & Oceania                          260.5        270.2          (4%)

Total net sales ($ million)               4,706.4      3,965.1          19%

Cost of sales (% of sales)                     60%          62%

Operating income ($ million)              1,056.7        678.7          56%

Operating income (% of sales)                  22%          17%

Net sales of tubular products and services increased 19% to US$4,706.4 million in the first half of 2012, compared to US$3,965.1 million in the first half of 2011, reflecting a 10% increase in volumes and an 8% increase in average selling prices.

Cost of sales of tubular products and services, expressed as a percentage of net sales, decreased from 62% in the first half of 2011, to 60% in the first half of 2012, as tubes price increases offset the increase in raw material costs that took place in the first half of 2011.

Operating income from tubular products and services increased 56% to US$1,056.7 million in the first half of 2012, from US$678.7 million in the first half of 2011, due to a 19% increase in sales and an increase of 5 percentage points in the operating margin, due to lower cost of sales as a percentage of sales (60% in first half 2012 vs. 62% in first half 2011) and lower SG&A as a percentage of sales (18% in first half 2012 vs. 21% in first half 2011), due to a better absorption of fixed and semi-fixed expenses on higher sales.

Projects

The following table indicates, for our Projects business segment, net sales, cost of sales as a percentage of net sales, operating income and operating income as a percentage of net sales for the periods indicated below:

                                                          Increase/

           Projects              H1 2012      H1 2011    (Decrease)

Net sales ($ million)                327.9        387.3         (15%)

Cost of sales (% of sales)              65%          66%

Operating income ($ million)          73.4         83.3         (12%)

Operating income (% of sales)           22%          21%

Projects net sales decreased 15% to US$327.9 million in the first half of 2012, compared to US$387.3 million in the first half of 2011, reflecting a 31% decrease in volumes, partially offset by a 23% increase in average selling prices.

Operating income from projects decreased 12% to US$73.4 million in the first half of 2012, from US$83.3 million in the first half of 2011, mainly reflecting a decrease in sales, partially offset by higher operating margins.

Others

The following table indicates, for our Others business segment, net sales, cost of sales as a percentage of net sales, operating income and operating income as a percentage of net sales for the periods indicated below:

                                                          Increase/

            Others               H1 2012      H1 2011    (Decrease)

Net sales ($ million)                384.6        374.6           3%

Cost of sales (% of sales)              72%          68%

Operating income ($ million)          57.0         76.4         (25%)

Operating income (% of sales)           15%          20%

Net sales of other products and services increased 3% to US$384.6 million in the first half of 2012, compared to US$374.6 million in the first half of 2011, mainly due to higher sales of sucker rods.

Operating income from other products and services decreased to US$57.0 million in the first half of 2012, compared to US$76.4 million during the first half of 2011, as the increase in sales was offset by a lower operating margin.

Selling, general and administrative expenses, or SG&A, decreased as a percentage of net sales to 17.2% in the semester ended June 30, 2012 compared to 19.5% in the corresponding semester of 2011, mainly due to the effect of fixed and semi-fixed expenses over higher revenues.

Net interest expenses decreased to US$7.3 million in the first half of 2012 compared to US$11.1 million in the same period of 2011.

Other financial results recorded a loss of US$3.4 million during the first half of 2012, compared to a loss of US$11.4 million during the first half of 2011. These results largely reflect gains and losses on net foreign exchange transactions and the fair value of derivative instruments and are partially offset by changes to our net equity position. These gains and losses are mainly attributable to variations in the exchange rates between our subsidiaries' functional currency (other than the US dollar) and the US dollar, in accordance with IFRS.

Equity in earnings of associated companies generated a gain of US$30.2 million in the first half of 2012, compared to a gain of US$47.0 million in the first half of 2011. These gains were derived mainly from our equity investment in Ternium.

Income tax charges amounted to US$293.0 million in the first half of 2012, equivalent to 25% of income before equity in earnings of associated companies and income tax, compared to US$234.0 million in the first half of 2011, equivalent to 29% of income before equity in earnings of associated companies and income tax. During the first half of 2012, the tax rate benefited from a more favorable mix of companies.

Income attributable to non-controlling interests amounted to US$8.7 million in the first half of 2012, compared to US$22.3 million in the corresponding semester of 2011. In May 2012, we completed the acquisition of all the non-controlling interests of Confab.

Cash Flow and Liquidity of 2012 First Half

Net cash provided by operations during the first half of 2012 rose to US$1,019.2 million, compared to US$490.8 million in the first half of 2011, mainly due to higher result and lower investments in working capital in the first half of 2012.

Capital expenditures amounted to $400.9 million in the first half of 2012, compared to US$461.8 million in the first half of 2011.

Following our investments in Brazil during the first semester of 2012, amounting to US$1.3 billion(US$504.6 million in Usiminas and US$758.5 million in Confab) and the payment of a dividend of US$295.1 million, our financial position at June 30, 2012, amounted to a net debt position (total borrowings less cash and other current investments) of US$540.5 million, compared with a net cash position of US$323.6 million at December 31, 2011.

Tenaris Files Half-Year Report

Tenaris S.A. announces that it has filed its half-year report for the six-month period ended June 30, 2012 with the Luxembourg Stock Exchange. The half-year report can be downloaded from the Luxembourg Stock Exchange's website at www.bourse.lu and from Tenaris's website at www.tenaris.com/investors.

Holders of Tenaris's shares and ADSs, and any other interested parties, may request a hard copy of the half-year report, free of charge, at 1-888-300-5432 (toll free from the United States) or 52-229-989-1940 (from outside the United States).

Some of the statements contained in this press release are "forward-looking statements." Forward-looking statements are based on management's current views and assumptions and involve known and unknown risks that could cause actual results, performance or events to differ materially from those expressed or implied by those statements. These risks include but are not limited to risks arising from uncertainties as to future oil and gas prices and their impact on investment programs by oil and gas companies.

Press releases and financial statements can be downloaded from Tenaris's website at www.tenaris.com/investors.

Consolidated Condensed Interim Income Statement



(all amounts in thousands of   Three-month period    Six-month period ended

 U.S. dollars)                   ended June 30,             June 30,

                             ----------------------  ----------------------

                                2012        2011        2012        2011

                             ----------  ----------  ----------  ----------

Continuing operations              (Unaudited)             (Unaudited)

Net sales                     2,801,492   2,403,122   5,418,841   4,727,087

Cost of sales                (1,694,712) (1,525,696) (3,305,809) (2,971,375)

                             ----------  ----------  ----------  ----------

Gross profit                  1,106,780     877,426   2,113,032   1,755,712

Selling, general and

 administrative expenses       (486,655)   (468,648)   (930,798)   (919,977)

Other operating income

 (expenses) net                     761       1,028       4,853       2,649

                             ----------  ----------  ----------  ----------

Operating income                620,886     409,806   1,187,087     838,384

Interest income                   5,706       6,513      15,289      14,200

Interest expense                (12,688)    (12,248)    (22,613)    (25,289)

Other financial results         (16,476)    (12,408)     (3,395)    (11,350)

                             ----------  ----------  ----------  ----------

Income before equity in

 earnings of associated

 companies and income tax       597,428     391,663   1,176,368     815,945

Equity in earnings of

 associated companies            11,056      22,720      30,218      47,005

                             ----------  ----------  ----------  ----------

Income before income tax        608,484     414,383   1,206,586     862,950

Income tax                     (148,325)   (109,680)   (292,999)   (234,050)

                             ----------  ----------  ----------  ----------

Income for the period/year      460,159     304,703     913,587     628,900



Attributable to:

Equity holders of the

 Company                        461,089     287,218     904,929     606,592

Non-controlling interests          (930)     17,485       8,658      22,308

                             ----------  ----------  ----------  ----------

                                460,159     304,703     913,587     628,900

                             ----------  ----------  ----------  ----------







Consolidated Condensed Interim Statement of Financial Position



(all amounts in

 thousands of U.S.

 dollars)                     At June 30, 2012        At December 31, 2011

                         ------------------------- -------------------------

                                (Unaudited)

ASSETS

Non-current assets

  Property, plant and

   equipment, net           4,215,747                 4,053,653

  Intangible assets, net    3,286,788                 3,375,930

  Investments in

   associated companies     1,095,767                   670,248

  Other investments             2,546                     2,543

  Deferred tax assets         226,741                   234,760

  Receivables                 135,614    8,963,203      133,280    8,470,414

                         ------------              ------------



Current assets

  Inventories               2,985,056                 2,806,409

  Receivables and

   prepayments                294,679                   241,801

  Current tax assets          150,119                   168,329

  Trade receivables         1,952,603                 1,900,591

  Available for sale

   assets                      21,572                    21,572

  Other investments           419,409                   430,776

  Cash and cash

   equivalents                742,618    6,566,056      823,743    6,393,221

                         ------------ ------------ ------------ ------------

Total assets                            15,529,259                14,863,635

                                      ============              ============



EQUITY

Capital and reserves

 attributable to the

 Company's equity

 holders                                10,699,313                10,506,227

Non-controlling

 interests                                 178,365                   666,716

                                      ------------              ------------

Totalequity                             10,877,678                11,172,943

                                      ============              ============



LIABILITIES

Non-current liabilities

  Borrowings                  676,077                   149,775

  Deferred tax

   liabilities                791,006                   828,545

  Other liabilities           204,156                   233,653

  Provisions                   67,511                    72,975

  Trade payables                1,524    1,740,274        2,045    1,286,993

                         ------------              ------------



Current liabilities

  Borrowings                1,026,468                   781,101

  Current tax

   liabilities                243,405                   326,480

  Other liabilities           446,146                   305,214

  Provisions                   22,512                    33,605

  Customer advances           163,883                    55,564

  Trade payables            1,008,893    2,911,307      901,735    2,403,699

                         ------------ ------------ ------------ ------------

Total liabilities                        4,651,581                 3,690,692

                                      ============              ============

Total equity and

 liabilities                            15,529,259                14,863,635

                                      ============              ============







Consolidated Condensed Interim Statement of Cash Flow



                               Three-month period    Six-month period ended

                                 ended June 30,             June 30,

                             ----------------------  ----------------------

(all amounts in thousands of

U.S. dollars)                   2012        2011        2012        2011

                             ----------  ----------  ----------  ----------

                                   (Unaudited)             (Unaudited)

Cash flows from operating

 activities

Income for the period           460,159     304,703     913,587     628,900

Adjustments for:

Depreciation and

 amortization                   137,725     136,017     275,884     265,401

Income tax accruals less

 payments                      (155,274)     15,475    (105,779)     47,235

Equity in earnings of

 associated companies           (11,056)    (22,720)    (30,218)    (47,005)

Interest accruals less

 payments, net                       37     (13,782)    (18,256)    (27,820)

Changes in provisions            (8,426)      1,899     (16,557)     19,916

Changes in working capital       53,139    (118,567)     48,103    (498,557)

Other, including currency

 translation adjustment         (61,804)     22,106     (47,567)    102,716

                             ----------  ----------  ----------  ----------

Net cash provided by

 operating activities           414,500     325,131   1,019,197     490,786

                             ==========  ==========  ==========  ==========



Cash flows from investing

 activities

Capital expenditures           (204,531)   (251,171)   (400,926)   (461,791)

Acquisitions of subsidiaries

 and associated companies             -           -    (504,597)          -

Proceeds from disposal of

 property, plant and

 equipment and intangible

 assets                           1,383         712       6,155       1,967

Dividends and distributions

 received from associated

 companies                       18,702      17,229      18,702      17,229

Changes in investments in

 short term securities              784    (205,634)     11,367    (194,682)

                             ----------  ----------  ----------  ----------

Net cash used in investing

 activities                    (183,662)   (438,864)   (869,299)   (637,277)

                             ==========  ==========  ==========  ==========



Cash flows from financing

 activities

Dividends paid                 (295,134)   (247,913)   (295,134)   (247,913)

Dividends paid to non-

 controlling interest in

 subsidiaries                         -      (5,735)       (905)     (5,735)

Acquisitions of non-

 controlling interests         (758,527)    (11,439)   (758,539)    (16,489)

Proceeds from borrowings        668,455     180,515   1,214,234     489,795

Repayments of borrowings       (202,013)   (309,582)   (439,116)   (541,112)

                             ----------  ----------  ----------  ----------

Net cash used in financing

 activities                    (587,219)   (394,154)   (279,460)   (321,454)

                             ==========  ==========  ==========  ==========



                             ==========  ==========  ==========  ==========

Decrease in cash and cash

 equivalents                   (356,381)   (507,887)   (129,562)   (467,945)

                             ==========  ==========  ==========  ==========

Movement in cash and cash

 equivalents

At the beginning of the

 period                       1,060,559     865,228     815,032     820,165

Effect of exchange rate

 changes                        (10,466)      4,702       8,242       9,823

Decrease in cash and cash

 equivalents                   (356,381)   (507,887)   (129,562)   (467,945)

                             ----------  ----------  ----------  ----------

At June 30,                     693,712     362,043     693,712     362,043



                                   At June 30,             At June 30,

                             ----------------------  ----------------------

Cash and cash equivalents       2012        2011        2012        2011

                             ----------  ----------  ----------  ----------

Cash at banks, liquidity

 funds and short-term

 investments                    742,618     424,287     742,618     424,287

Bank overdrafts                 (48,906)    (62,244)    (48,906)    (62,244)

                             ----------  ----------  ----------  ----------

                                693,712     362,043     693,712     362,043

                             ==========  ==========  ==========  ==========

Giovanni Sardagna

Tenaris

1-888-300-5432

www.tenaris.com

Source: Tenaris S.A.

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