| Schedule of convertible notes |
| | | | | | | | | | | | | | | Subsidiary | | 2023 | | 2024 | | 2025 | | ATW | | | | | Convertible Note | | Convertible Notes | | Convertible Notes | | Convertible Notes | | Convertible Note | | Total | | | US$ | | US$ | | US$ | | US$ | | US$ | | US$ | Balance as of January 1, 2023 | | 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 | Issuance of convertible notes | | — | | 9,500 | | 109,784 | | — | | — | | 119,284 | Interest paid | | (5,357) | | — | | — | | — | | — | | (5,357) | Changes in fair values of convertible notes, excluding impact of instrument-specific credit risk | | 7,905 | | 337 | | 5,790 | | — | | — | | 14,032 | Changes in fair values of convertible notes due to the instrument-specific credit risk | | (8,789) | | — | | (1,664) | | — | | — | | (10,453) | Conversion to ordinary shares | | — | | (30,114) | | — | | — | | — | | (30,114) | Foreign currency translation adjustment | | (1,148) | | — | | — | | — | | — | | (1,148) | Balance as of December 31, 2024 | | 74,246 | | — | | 113,910 | | — | | — | | 188,156 | Issuance of convertible notes | | — | | — | | — | | 189,263 | | 10,000 | | 199,263 | Changes in fair values of convertible notes, excluding impact of instrument-specific credit risk | | 1,778 | | — | | 5,948 | | 14,115 | | 1,789 | | 23,630 | Changes in fair values of convertible notes due to the instrument-specific credit risk | | (10,225) | | — | | (595) | | — | | 283 | | (10,537) | Repayment | | — | | — | | (119,263) | | — | | — | | (119,263) | Conversion to ordinary shares | | — | | — | | — | | — | | (1,210) | | (1,210) | Interest paid | | (4,802) | | — | | — | | — | | (75) | | (4,877) | Foreign currency translation adjustment | | 1,442 | | — | | — | | — | | — | | 1,442 | Balance as of December 31, 2025 | | 62,439 | | — | | — | | 203,378 | | 10,787 | | 276,604 | Including: | | | | | | | | | | | | | – Current portion | | — | | — | | — | | 126,203 | | — | | 126,203 | – Non-current portion | | 62,439 | | — | | — | | 77,175 | | 10,787 | | 150,401 |
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