| Accrued expenses and other liabilities Accrued expenses and other liabilities consisted of the following: | | | | | | | | | | | | | As of December 31, | | 2024 | | 2025 | | US$ | | US$ | | Salaries and benefits payables | 18,490 | | | 14,547 | | | Taxes payable | 16,447 | | | 22,219 | | | Product warranties | 6,868 | | | 8,233 | | | Accrued costs of the Merger | 7,900 | | | 6,900 | | | Other payables and accrued charges* | 35,772 | | | 36,976 | | | Accrued expenses and other current liabilities | 85,477 | | | 88,875 | |
___________________________ *Other payables and accrued charges primarily include accrual for research and development expenses. Product warranties
The following table provides a reconciliation of changes in the product warranties: | | | | | | | | | | | | | Year ended December 31, | | 2024 | | 2025 | | US$ | | US$ | | Balance at the beginning of the year | 18,650 | | | 21,861 | | | Additions | 9,657 | | | 8,922 | | | Settlements | (5,813) | | | (5,967) | | | Foreign currency translation adjustments | (633) | | | 1,221 | | | Balance at the end of the year | 21,861 | | | 26,037 | | | Including: | | | | | Current portion of warranty included in "Accrued expenses and other current liabilities" | 6,868 | | | 8,233 | | | Non-current portion of warranty included in "Provisions" | 14,993 | | | 17,804 | |
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