| Schedule of convertible notes |
| | | | | | | | | | | Series | | Subsidiary | | 2023 | | | | | Pre-A Note | | Convertible Note | | Convertible Notes | | Total | | | US$ | | US$ | | US$ | | US$ | Balance as of January 1, 2021 | | — | | — | | | | — | Issuance of convertible notes | | 23,445 | | — | | | | 23,445 | Balance as of December 31, 2021 | | 23,445 | | — | | — | | 23,445 | Issuance of convertible notes | | — | | 75,037 | | — | | 75,037 | Conversion to Series Pre-A redeemable convertible preferred shares (note 17) | | (23,445) | | — | | — | | (23,445) | Changes in fair values of convertible notes, excluding impact of instrument-specific credit risk | | — | | 4,264 | | — | | 4,264 | Changes in fair values of convertible notes due to the instrument-specific credit risk | | — | | 890 | | — | | 890 | Foreign currency translation adjustment | | — | | (3,421) | | — | | (3,421) | Balance as of December 31, 2022 | | — | | 76,770 | | — | | 76,770 | Issuance of convertible notes | | — | | — | | 25,297 | | 25,297 | Partial redemption of convertible notes | | — | | — | | (5,648) | | (5,648) | Interest paid | | — | | (3,072) | | — | | (3,072) | Changes in fair values of convertible notes, excluding impact of instrument-specific credit risk | | — | | 2,376 | | 616 | | 2,992 | Changes in fair values of convertible notes due to the instrument-specific credit risk | | — | | 6,951 | | 12 | | 6,963 | Foreign currency translation adjustment | | — | | (1,390) | | — | | (1,390) | Balance as of December 31, 2023 | | — | | 81,635 | | 20,277 | | 101,912 | – Current portion | | — | | — | | 20,277 | | 20,277 | – Non-current portion | | — | | 81,635 | | — | | 81,635 |
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