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Fair value measurement (Tables) | 12 Months Ended
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Dec. 31, 2022
Fair value measurement |
Schedule of fair value measurement of liabilities | The following table provides the fair value measurement hierarchy of the Group’s assets and liabilities: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Fair value measurement using:
​ | ​ | ​ | ​ | Quoted prices | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | in active | ​ | Observable | ​ | Unobservable
​ | ​ | Carrying | ​ | markets | ​ | inputs | ​ | inputs
​ |  | value |  | (Level 1) |  | (Level 2) |  | (Level 3)
​ | ​ | US$(000) | ​ | US$(000) | ​ | US$(000) | ​ | US$(000)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2022- | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Assets and liabilities measured at fair value: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Fair value of account receivable (subject to provisional pricing) |  | 129,567 |  | — |  | 129,567 |  | —
Contingent consideration liability |  | 16,905 |  | — |  | 16,905 |  | —
Hedge instruments asset | ​ | 8,839 | ​ | — | ​ | 8,839 | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Fair value of liabilities at amortized cost: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Bank loans | ​ | — | ​ | — | ​ | — | ​ | —
Financial obligations | ​ | 672,110 | ​ | — | ​ | 672,110 | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2021 - | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Assets and liabilities measured at fair value: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Fair value of account receivable (subject to provisional pricing) | ​ | 133,977 | ​ | — | ​ | 133,977 | ​ | —
Contingent consideration liability | ​ | 17,718 | ​ | — | ​ | — | ​ | 17,718
Hedge instruments liability | ​ | 6,976 | ​ | — | ​ | 6,976 | ​ | —
​ |  | ​ |  | ​ |  | ​ |  | ​
Fair value of liabilities at amortized cost: |  | ​ |  | ​ |  | ​ |  | ​
Bank loans | ​ | 50,000 | ​ | — | ​ | 50,000 | ​ | —
Financial obligations | ​ | 1,059,236 | ​ | — | ​ | 1,059,236 | ​ | —
​ |  | ​ |  | ​ |  | ​ |  | ​
​
Schedule of quantitative information about the significant unobservable inputs used in level 3 fair value measurements | The following table summarizes the quantitative information about the significant unobservable inputs used in level 3 fair value measurements: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Fair value as of |  | ​ |  | ​ |  | ​
​ | ​ | December 31, | ​ | Unobservable | ​ | ​ | ​ | Relationship of unobservable
Description | ​ | 2022 | ​ | inputs | ​ | Range of inputs | ​ | inputs to fair value
Contingent consideration liability |  | 16,905 |  | Rate before tax |  | 11.72 | % | A change in the discount rate by 10% (rate 11.72%) higher/lower, the fair value would increase/decrease in US$1.5 million.
​ |  | ​ |  | Expected revenues annual average (US$000) |  | 208,912 | ​ | If expected sales change by 10% higher/lower, the fair value would increase/decrease in US$1.7 million.

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