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BUSINESS ACQUISITIONS (Schedule of An analysis of the cash flows in respect of the acquisitions) (Details) - CNY (¥) ¥ in Thousands	1 Months Ended	12 Months Ended
	Nov. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
ForeignCurrencyLineItems [Line Items]
Net cash outflows from the acquisition of Bayannaoer Mining			¥ (86)
Bayannaoer Mining [Member]
ForeignCurrencyLineItems [Line Items]
Cash consideration	¥ (717)
Cash and bank balances acquired	631
Net cash outflows from the acquisition of Bayannaoer Mining	¥ (86)

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- Definition

Amount of cash and bank balance acquired.

+ References

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- Definition

The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2018-01-01
-Paragraph B64
-Subparagraph f
-Clause i
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- Definition

The cash outflow to acquire interests in joint ventures (other than payments for those instruments considered to be cash equivalents or those held for dealing or trading purposes), classified as investing activities. [Refer: Joint ventures [member]]

+ References

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-IssueDate 2018-01-01
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