PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) ¥ in Thousands	12 Months Ended
Dec. 31, 2015 CNY (¥)
Disclosure of detailed information about property, plant and equipment [line items]
Impairment loss on property, plant and equipment	¥ (7,542)
Pre-tax rate to CGU	16.00%
Yangchong Mine [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Impairment loss on property, plant and equipment	¥ 7,542

The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-Clause v
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_v&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 98
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_a&doctype=Standard
-URIDate 2017-03-09

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration