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Note 26 - Derivative financial instruments - Commodities Derivative Contracts (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives | $ (12,455) | $ (816) |
Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Hedge accounting reserve | (2,733) | (620) | $ 8,133
Commodity Derivatives [member] | Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives | (2,313) | (808) |
Hedge accounting reserve | (2,313) | (808) |
Commodity Derivatives [member] | Commodities derivative contracts, LME Scrap [member] | Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives |  | (1,974) |
Hedge accounting reserve |  | (1,974) |
Commodity Derivatives [member] | Commodities derivative contracts, PSV Gas [member] | Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives | (1,415) | 1,097 |
Hedge accounting reserve | (1,415) | 1,097 |
Commodity Derivatives [member] | Commodities derivative contracts, Nickel [member] | Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives | (194) | 52 |
Hedge accounting reserve | (194) | 52 |
Commodity Derivatives [member] | Commodities derivative contracts, Houston Ship Channel Gas [member] | Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives |  | 34 |
Hedge accounting reserve |  | 34 |
Commodity Derivatives [member] | Commodities derivative contracts, Electric Energy [member] | Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives | (301) | (17) |
Hedge accounting reserve | (301) | (17) |
Commodity Derivatives [member] | Commodities derivative contracts, TTF Gas [member] | Cash flow hedges [member] |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Fair value of derivatives | (403) |  |
Hedge accounting reserve | $ (403) |  |

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition A component of equity representing the reserve of cash flow hedges in relation to continuing hedges. [Refer: Reserve of cash flow hedges] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 24B -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_24B_b_ii&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The amount of financial assets (liabilities) classified as derivative instruments. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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