FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2023

Notes and other explanatory information [abstract]

Schedule of financial assets

	December 31,
	2022		2023		2023
	CNY		CNY		US$
Debt instruments at amortized cost:
Trade receivables: current		46,760		—		—
Trade receivables: non-current		10,520		—		—
Financial assets included in other receivables		82,406		3		—
Financial assets at fair value through other comprehensive income:
Bills receivable		8,500		—		—
Total		148,186		3		—
Total current		137,666		3		—
Total non-current		10,520		—		—

Schedule of financial liabilities

	December 31,		December 31,		December 31,
	2022		2023		2023
		CNY		CNY		US$
Derivatives not designated as hedging instruments:
Derivative financial liabilities (i)		824		—		—
Financial liabilities at amortized cost:
Trade payables		20,326		100		14
Financial liabilities in other payables and accruals		6,749		7,864		1,111
Lease liabilities		2,915		360		51
Due to related companies		3,408		9,069		1,281
Due to the Shareholder		7,153		85,673		12,103
Interest-bearing loans and borrowings		74,000		—		—
Total		115,375		103,066		14,560
Total current		42,777		103,066		14,560
Total non-current		72,598		—		—

(i) This represents certain warrants issued to institutional investors on January 20, 2021, which was recognized as derivative financial liabilities (not designated as hedging instruments) with a fair value of CNY9,246 (US$1,427)* on the issue date as the investors have the right to exercise their warrants on a cashless basis. In accordance with IAS 32, a contract settled by a single net payment (generally referred to as net cash-settled or net equity-settled as the case may be) is a financial liability and not an equity instrument. The fair value gain of derivative financial liabilities for the years ended December 31, 2021, 2022 and 2023 was CNY7,467 and CNY1,007, CNY847 (US$120), respectively.  

Schedule of the carrying amounts and fair values of the Group’s financial instruments other than those with carrying amounts

	December 31,
	2022				2023				2023
	CNY				CNY				US$
	Carrying amount		Fair value		Carrying amount		Fair value		Carrying amount		Fair value
Financial liabilities
Interest-bearing loans and borrowings		74,000		77,636		—		—		—		—

Schedule of the fair value measurement hierarchy of the Group’s financial assets and financial liabilities

As of December 31, 2022	Fair value measurement using
	Quoted prices in active markets (Level 1)		Significant observable inputs (Level 2)		Significant unobservable inputs (Level 3)		Total
	CNY		CNY		CNY		CNY
Recurring fair value measurement:
Financial assets
Bills receivable		—		8,500		—		8,500
Financial liabilities
Derivative financial liabilities		—		824		—		824