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CONVERTIBLE BOND PAYABLE (Tables) | 12 Months Ended
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Dec. 31, 2024
Debt Disclosure [Abstract] |
Summary of Convertible Bonds Payable |
| As of December 31, |
| 2023 |  |  | 2024 |
| US$ |  |  | US$ |
2021 Series A1 Note US$ 44,000,000 1.00% due to 2026 |  | 42,957,209 |  |  |  | 44,435,897 |
2021 Series A2 Note US$ 21,000,000 1.00% due to 2026 |  | 21,543,492 |  |  |  | 21,758,873 |
2021 Series B Note US$ 90,000,000 1.00% due to 2026 |  | 92,386,990 |  |  |  | 93,310,627 |
|  | 156,887,691 |  |  |  | 159,505,397 |

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