SHARE-BASED PAYMENTS (Tables)

12 Months Ended

Dec. 31, 2022

Share-based Payments

Schedule of expense arising from share-based payments

	Year Ended December 31,
	2021		2022		2022
	CNY		CNY		US$
Issuance expense related to agent warrants		447		—		—
Consultants share option expense (Note 6)		—		16,152		2,342
Total		447		16,152		2,342

Schedule of agent warrants

	Number of shares		Exercise price per share
			US$
Outstanding at January, 2021		—		—
Granted during the year		396,000		2.35
Outstanding as of December 31, 2021		396,000		2.35
		—		—
Outstanding as of December 31, 2022		396,000		0.623	*

The remaining contractual life for the agent warrants as of December 31, 2022 and 2021, were 1.06 years and 2.06 years, respectively. 

* The exercise price was revised to $0.623 per share in July, 2022.

Schedule of share options

	Number of shares		Exercise price per share
			US$
Outstanding at January, 2022		—		—
Granted during the year		8,100,000		0.623
Outstanding as of December 31, 2022		8,100,000		0.623

Schedule of inputs to the models for fair value

	Agent warrants		Share options
	2021		2022
Fair value at the measurement date (US$)		70		2,400
Fair value at the measurement date (CNY)		449		16,209
Expected volatility (%)		93.67		93.50
Risk-free interest rate (%)		0.19		3.16
Expected life (years)		2.50		3
Share price (US$)		0.901		0.623