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Income tax expense/(credit) - Reconciliation of tax (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Continuing operations |  |  |
Loss before taxation | $ (36,213) | $ (46,025) | $ (42,944)
Tax at average income tax rate (Note) | (4,687) | (1,697) | (7,531)
Tax effect of non-deductible expenses | 1,399 | 1,364 | 3,173
Tax effect of non-taxable income | (93) | (2,776) | (705)
Tax effect on utilization of previously unrecognized tax losses | 0 | 0 | (71)
Under/(over) provision in respect of prior years | 1 | (7,422) | 0
Tax effect of tax losses not recognized | 3,401 | 3,147 | 5,143
Tax effect of deductible temporary differences not recognized | 3 | 5 | 0
Tax effect of previously unrecognized temporary differences recognized in current year | (20) | (260) | 0
Others | 30 | 0 | 45
Tax expense/(credit) | $ 34 | $ (7,639) | $ 54

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