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Income tax - Tax rate (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Income tax |  |  |
Income / (loss) for the year before income tax | $ 332,682 | $ 606,732 | $ 202,226
Tax calculated at the tax rate in each country | (81,451) | (212,374) | (59,160)
Adjustments |  |  |
Non-taxable income | 18,618 | 34,130 | 57,519
Expenses related to non-taxable income | (12,478) | (12,689) | (8,871)
Non-deductible expenses | (17,474) | (11,221) | (3,581)
Effect of tax inflation adjustment | (43,810) | (167,973) | (114,289)
Effect of inflation adjustment | (40,612) | (80,365) | (53,895)
Effect of asset revaluation for tax purposes | 103,172 | 118,242 | 119,483
Inflation adjustment for tax purposes of tax losses | 6,993 | 76,622 | 81,273
Unrecognized deferred taxes | (18,424) | (49,631) | (11,427)
Investment project exonerations | 16,160 | 12,737 | 12,552
Other | (5,657) | (6,298) | 4,637
Income tax | $ (74,963) | $ (298,820) | $ 24,241

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