| Property and equipment, net |
13. Property and equipment, net Property and equipment consist of the following: | | | | | | | December 31, | | | 2023 | | 2024 | | | US$ | | US$ | | | | | | Gross carrying amount | | | | | Servers, computers and equipment | | 280,619 | | 300,157 | Buildings | | 270,423 | | 267,661 | Construction in progress | | 111,573 | | 214,728 | Decoration of buildings | | 14,578 | | 14,363 | Leasehold improvements | | 5,683 | | 5,582 | Motor vehicles | | 17,603 | | 17,387 | Furniture, fixture and office equipment | | 4,810 | | 4,868 | | | | | | Total of gross carrying amount | | 705,289 | | 824,746 | Less: accumulated depreciation | | (314,608) | | (325,023) | | | | | | Property and equipment, net | | 390,681 | | 499,723 |
Depreciation expense for the years ended December 31, 2022, 2023 and 2024 were US$83,396, US$46,576 and US$25,388, respectively.
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