XML 60 R25.htm IDEA: XBRL DOCUMENT v3.23.1
Research and Development Expenses
12 Months Ended
Dec. 31, 2022
Research and Development Expenses  
Research and Development Expenses

18.  Research and Development Expenses

Research and development expenses consist of the following:

For the Year Ended December 31,

    

2020

    

2021

    

2022

Employee compensation

1,362,231

2,658,158

6,684,971

Design and development expenses

778,463

1,572,834

3,276,915

Depreciation and amortization expenses

255,544

214,312

333,097

Rental and related expenses

51,123

53,846

193,132

Travel and entertainment expenses

15,720

43,732

111,531

Others

24,689

48,970

236,615

Total

2,487,770

4,591,852

10,836,261