INTANGIBLE ASSETS

6 Months Ended

Jun. 30, 2022

Intangible Assets

INTANGIBLE ASSETS

10. INTANGIBLE ASSETS

	Patent			Concession Right			Software			Total
	CNY			CNY			CNY			CNY
Cost
As of January 1, 2021 (As adjusted)		22,878			—			274			23,152
Transfer in		—			20,430			—			20,430
As of December 31, 2021		22,878			20,430			274			43,582
Accumulated amortization and impairment
As of January 1, 2021 (As adjusted)		(22,388	)		—			(121	)		(22,509	)
Amortization charge		(105	)		(730	)		(49	)		(884	)
As of December 31, 2021		(22,493	)		(730	)		(170	)		(23,393	)
Net carrying amount
As of December 31, 2021		385			19,700			104			20,189
Cost
As of January 1, 2022 and June 30, 2022		22,878			20,430			274			43,582
Accumulated amortization and impairment losses
As of January 1, 2022		(22,493	)		(730	)		(170	)		(23,393	)
Amortization charge		(19	)		(365	)		(20	)		(404	)
As of June 30, 2022		(22,512	)		(1,095	)		(190	)		(23,797	)
Net carrying amount
As of June 30, 2022		366			19,335			84			19,785
As of June 30, 2022 (US$)		55			2,886			12			2,953

As of December 31, 2021 and June 30, 2022, the Group’s concession rights associated with environmental water projects (comprising intangible assets, contract assets and trade receivables) with aggregate gross carrying amounts of CNY129,437 and CNY133,750, respectively, were pledged to secure bank loans from the Bank of Communications with outstanding balances of CNY77,000 and CNY75,500, respectively. Please refer to Note 20 for further details.

There was no impairment loss on intangible assets for the year ended December 31, 2021 and six months ended June 30, 2022.