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Related parties - Transactions with key management personnel (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of transactions between related parties [line items] |  |  |
Sales to an equity-accounted investee (Note(a)) | $ 0 | $ 120 | $ 702
Services recharge received from an equity-accounted investee (Note(b)) | 52 | 0 | 0
Services recharge received from a related party (Note(c)) | 28 | 31 | $ 13
Amounts due from related companies | 4 | 3 |
Services recharge |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts due from related companies | 0 | 3 |
Other related parties | Sale of goods |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts due from equity-accounted investees | 0 | 127 |
Other related parties | Rendering services |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts due from equity-accounted investees | $ 4 | $ 0 |

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- Details
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- Details
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