TRADE AND BILLS RECEIVABLE (Schedule of Aging Analysis of Trade Receivables) (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)
IfrsStatementLineItems [Line Items]
Trade receivables	$ 8,028	¥ 51,027	¥ 61,447
Within 1 year [Member]
IfrsStatementLineItems [Line Items]
Trade receivables	2,994	19,026	12,167
Between 1-2 years [Member]
IfrsStatementLineItems [Line Items]
Trade receivables	803	5,106	20,125
Between 2-3 years [Member]
IfrsStatementLineItems [Line Items]
Trade receivables	2,013	12,796	18,794
Over 3 years [Member]
IfrsStatementLineItems [Line Items]
Trade receivables	$ 2,218	¥ 14,099	¥ 10,361

The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant