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Intangible Assets, Net

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

9.	INTANGIBLE ASSETS, NET


	As at December 31
	2020			2021			2021
	RMB			RMB			US$
Customer relationships		—			620,100			97,307
Patents and technologies		—			67,900			10,655
Trademarks and domain names		7,020			497,098			78,006
Software and copyrights		20,807			71,752			11,259
Others		7,469			3,637			571

		35,296			1,260,487			197,798

Less: accumulated amortization
Customer relationships		—			(32,637	)		(5,121	)
Patents and technologies		—			(8,138	)		(1,277	)
Trademarks and domain names		(3,035	)		(20,722	)		(3,252	)
Software and copyrights		(10,268	)		(26,692	)		(4,189	)
Others		(5,420	)		(2,531	)		(397	)

		(18,723	)		(90,720	)		(14,236	)

Intangible assets, net		16,573			1,169,767			183,562

Amortization expense of intangible assets for the years ended December 31, 2019, 2020 and 2021 was RMB

2,851

RMB7,663

and

RMB72,299

(US$

11,345

), respectively. As of December 31, 2021, estimated amortization expense of the existing intangible assets for each of the next five years and thereafter is as follows:


	RMB		US$
2022		171,065		26,844
2023		170,140		26,699
2024		168,476		26,438
2025		166,454		26,120
2026 and thereafter		493,632		77,461

Total		1,169,767		183,562