Company: TNRSF
Filing Date: 2025-10-30
Form Type: 6-K
Source: 0001171843-25-006841
Chunk: 9

Company: TENARIS SA
Filing Date: 2025-10-30
Form: 6-K
Chunk 9
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 |     |       |     |     |       |    (2 | ) |
| Differences in other operating income (expenses) and others                   |     |       |       |     |       |     |     |       |     3 |   |
| IFRS - operating income                                                       |     |       |       |     |       |     |     |       | 1,860 |   |
| Financial income (expense), net                                               |     |       |       |     |       |     |     |       |    81 |   |
| Income before equity in earnings of non-consolidated companies and income tax |     |       |       |     |       |     |     |       | 1,942 |   |
| Equity in (losses) of non-consolidated companies                              |     |       |       |     |       |     |     |       |   (27 | ) |
| Income before income tax                                                      |     |       |       |     |       |     |     |       | 1,915 |   |
| Net Sales                                                                     |     |       | 9,212 |     |       | 467 |     |       | 9,679 |   |
| Depreciation and amortization                                                 |     |       |   451 |     |       |  14 |     |       |   465 |   |

There are no material differences between the IFRS and management views in total revenues.

The differences between operating income under the IFRS and management views are mainly related to the cost of goods sold, reflecting the effect of raw materials prices variations on the valuation of the replacement cost considered for management view compared to IFRS cost calculated at historical cost on a FIFO basis, and other timing differences. For more information see note II.C “Segment information” in the Company’s audited Consolidated Financial Statements for the year ended December 31, 2024.

The main differences in net income under the IFRS and management views arise from the impact of functional currencies on financial result, deferred income taxes as well as the equity in earnings of non-consolidated companies.

In 2024, following the integration of coating activities into its Tubes segment, the Company represented comparative year-to-date segment information amounts accordingly.

Geographical information

|                                      |     | Nine-month period ended 
 September 30,           |      2025 |     |     |      2024 |
|:-------------------------------------|:----|