Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Tables)

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Depreciation is recognized over the following useful lives in straight-line method, taking into consideration the assets’ estimated salvage value:

Building		30 years
Computer equipment		3 to 5 years
Furniture, fixtures and office equipment		3 to 5 years
Software		3 to 10 years
Motor vehicles		5 years
Leasehold improvements		The shorter of lease terms and estimated useful lives

Employee Benefit Plans

Employee benefit expenses recognized under these plans for the years ended December 31, 2019, 2020 and 2021 are allocated to the following expense items.

	Year Ended December 31,
	2019		2020		2021
	RMB		RMB		RMB
Cost of revenues		2,363,553		3,022,423	5,989,994
Research and development		2,468,898		962,709	1,294,439
Sales and marketing		2,077,128		1,881,648	3,775,110
General and administrative		3,301,256		2,576,853	3,810,984
Total expense due to employee benefit plans		10,210,835		8,443,633	14,870,527