Company: TNRSF
Filing Date: 2025-07-31
Form Type: 6-K
Source: 0001171843-25-004924
Chunk: 1

Company: TENARIS SA
Filing Date: 2025-07-31
Form: 6-K
Chunk 1
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 30, 2024.

Summary of 2025 Second Quarter Results

(Comparison with first quarter of 2025 and second quarter of 2024)

|                                      |     | 2Q 2025 |   |     | 1Q 2025 |   |     |   |   |     | 2Q 2024 |   |     |    |    |
| Net sales ($ million)                |     |   3,086 |   |     |   2,922 |   |     | 6 | % |     |   3,322 |   |     | (7 | %) |
| Operating income ($ million)         |     |     583 |   |     |     550 |   |     | 6 | % |     |     512 |   |     | 14 | %  |
| Net income ($ million)               |     |     542 |   |     |     518 |   |     | 5 | % |     |     348 |   |     | 56 | %  |
| Shareholders’ net income ($ million) |     |     531 |   |     |     507 |   |     | 5 | % |     |     335 |   |     | 59 | %  |
| Earnings per ADS ($)                 |     |    0.99 |   |     |    0.94 |   |     | 5 | % |     |    0.59 |   |     | 68 | %  |
| Earnings per share ($)               |     |    0.50 |   |     |    0.47 |   |     | 5 | % |     |    0.29 |   |     | 68 | %  |
| EBITDA* ($ million)                  |     |     733 |   |     |     696 |   |     | 5 | % |     |     650 |   |     | 13 | %  |
| EBITDA margin (% of net sales)       |     |    23.7 | % |     |    23.8 | % |     |   |   |     |    19.6 | % |     |    |    |

* EBITDA in 2Q 2024 includes a $171 million loss from the provision for
ongoing litigation related