​

​

Six Months Ended June 30, 

​

2024

2025

​

​

(Unaudited)

​

(Unaudited)

Employee compensation

​

4,381,577

​

4,460,650

Design and development expenses

​

889,129

​

1,077,819

Depreciation and amortization expenses

​

511,915

​

378,246

Rental and related expenses

​

127,605

​

130,076

Travel and entertainment expenses

​

36,671

​

34,746

Others

​

135,841

​

106,898

Total

​

6,082,738

​

6,188,435