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Income tax expense/(credit) - Taxation in the consolidated statements of profit or loss represents (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Deferred tax |  |  |
Origination and reversal of temporary differences | $ (20) | $ (130) | $ 9
Tax expense/(credit) | 34 | (7,639) | 54
Hong Kong |  |  |
Current tax expense |  |  |
Under (Over) provisions related to prior years | 0 | (7,422) | (23)
Overseas |  |  |
Current tax expense |  |  |
Under (Over) provisions related to prior years | 1 | 0 | 0
Current year | $ 53 | $ (87) | $ 68

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