| Property and equipment, net |
13. Property and equipment, net Property and equipment consist of the following: | | | | | | | December 31, | | | 2024 | | 2025 | | | US$ | | US$ | | | | | | Gross carrying amount | | | | | Servers, computers and equipment | | 300,157 | | 301,482 | Buildings | | 267,661 | | 295,332 | Construction in progress | | 214,728 | | 274,918 | Motor vehicles | | 17,387 | | 17,198 | Renovation of buildings | | 14,363 | | 14,809 | Leasehold improvements | | 5,582 | | 5,772 | Furniture, fixture and office equipment | | 4,868 | | 4,744 | | | | | | Total of gross carrying amount | | 824,746 | | 914,255 | Less: accumulated depreciation | | (325,023) | | (341,811) | | | | | | Less: impairment loss | | — | | (7,320) | | | | | | Property and equipment, net | | 499,723 | | 565,124 |
Depreciation expense for the years ended December 31, 2023, 2024 and 2025 were US$46,576, US$25,388 and US$29,088, respectively.
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