Goodwill and Intangible assets

12 Months Ended

Dec. 31, 2022

7	Goodwill and Intangible assets

The Company has recognized goodwill of RMB

37,785

(US$

5,478

) as of December 31, 2022 as part of the SendCloud business acquisition

(see Note 9 for details).

There were

impairment

charges

in the carrying amount of goodwill during the year ended December 31, 2022.

Intangible assets consist of the following:


	As of December 31,
	2021			2022
	RMB			RMB			US$
Computer software, systems and technology		13,623			14,123			2,048
Brand		—			10,300			1,493
Customer relationship		—			13,800			2,001
Less: Accumulated amortization		(8,225	)		(14,276	)		(2,070	)

Total intangible assets, net		5,398			23,947			3,472

impairment charges were recognized on intangible assets for the years ended December 31, 2020, 2021 and 2022, respectively.

The weighted average amortization period of intangible assets were

3.9

years,

4.0

years and

6.0

years for the years ended December 31, 2020, 2021 and 2022, respectively.

Amortization expense of intangible assets were RMB

4,366

, RMB

4,481

and RMB

6,043

(US$

876

) for the years ended December 31, 2020, 2021 and 2022, respectively.

Estimated amortization expense relating

the existing intangible assets with finite lives for each of the next five years is as follows:

There were no intangible assets with an indefinite useful life as of December 31, 2021 and 2022.