Company: TNRSF
Filing Date: 2025-02-21
Form Type: 6-K
Source: 0001171843-25-000987
Chunk: 82

Company: TENARIS SA
Filing Date: 2025-02-21
Form: 6-K
Chunk 82
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 | (12,687 | ) |
| Increase due to business combinations (**) |     |                         |       - |   |     |     |   4,531 |   |
| Benefits paid from the plan                |     |                         |  (8,345 | ) |     |     |  (8,762 | ) |
| Other                                      |     |                         |   2,437 |   |     |     |    (840 | ) |
| At the end of the year                     |     |                         | 129,032 |   |     |     | 112,532 |   |

(*)For the year 2024 a loss of $ 1.6million is attributable to demographic assumptions and a loss of $ 5.9million to financial assumptions.

For the year 2023 a loss of $ 0.6million is attributable to demographic assumptions and a loss of $ 8.3million to financial assumptions.

(**)For the year 2024, related to Mattr’s pipe coating business unit acquisition. For more information see note 34.

For the year 2023, related to the GPC, Isoplus anticorrosion coating division and Mattr’s pipe coating business unit acquisitions.

| - 56 - |

| Consolidated Financial Statements                                                                           |
| For the years ended 2024, 2023 and 2022 - all amounts in thousands of U.S. dollars, unless otherwise stated |

The actuarial assumptions for the most relevant plans were as follows:

|                               |     | Year ended December 31, 
 2024                    |     | 2023    |
|:------------------------------|:----|:------------------------|:----|:--------|
| Discount rate                 |     | 3% - 8%                 |     | 3% - 7% |
| Rate of compensation increase |     | 2% - 6%                 |     | 2% - 5% |

As of December 31, 2024, an increase / (decrease) of 1% in the discount
rate assumption of the main plans would have generated a (decrease) / increase on the defined benefit obligation of $6.6
million and $5.7 million respectively, and an increase / (decrease) of 1% in the rate of compensation
assumption of the main plans would have generated an increase / (decrease) impact on the defined benefit obligation of $4