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REVENUE (Schedule of Disaggregated revenue information) (Details) ¥ in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 CNY (¥)	Jun. 30, 2018 CNY (¥)
Sale of copper ores [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | ¥		¥ 1,403
Sale of copper ores [Member] | USD [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | $	$ 204
Sale of copper ores [Member] | Type of goods [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | ¥		1,403
Sale of copper ores [Member] | Type of goods [Member] | USD [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | $	204
Mainland China [Member] | Geographic market [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | ¥		1,403
Mainland China [Member] | USD [Member] | Geographic market [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | $	204
Goods transferred at a point in time [Member] | Timing of revenue recognition [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | ¥		¥ 1,403
Goods transferred at a point in time [Member] | USD [Member] | Timing of revenue recognition [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers | $	$ 204

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2019-01-01
-Paragraph 113
-Subparagraph a
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-URIDate 2019-03-27

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