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Note 11 - Property, plant and equipment, net (Details Textual) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Property, plant and equipment, capitalized interest |  | $ 28.8 | $ 30.4 |
Percentage of ownership interest in subsidiary |  | 50.00% |  |
Property, plant and equipment, pledged as security |  | $ 89.6 |  |
SAUDI STEEL PIPE CO. and subsidiaries [Member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Percentage of ownership interest in subsidiary |  | 47.79% |  |
SAUDI STEEL PIPE CO. and subsidiaries [Member] | Global Pipe Company [Member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Proportion Of Ownership Interest In Joint Venture |  | 57.30% |  |
Saudi Arabia | SAUDI STEEL PIPE CO. and subsidiaries [Member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Percentage of ownership interest in subsidiary | [1],[2] | 47.79% | 48.00% | 48.00%
Land [member] | Saudi Arabia | SAUDI STEEL PIPE CO. and subsidiaries [Member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Restricted assets |  | $ 56.2 |  |
[1] | All percentages rounded.
[2] | Saudi Steel Pipe Co. is a public company listed in the Saudi Arabian Stock Exchange (Tad ā wul), Tenaris holds 47.79% and has the right to nominate the majority of the votes of the board of directors, therefore Tenaris has control over SSPC. Since May, 2023, Saudi Steel Pipe Co. holds 57.3% of Global Pipe Company, therefore Tenaris has control over GPC.

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