PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of detailed information about property, plant and equipment [abstract]

Schedule of Property Plant and Equipment

	Buildings			Mining structures and mining rights			Machinery and equipment			Motor vehicles			Construction in progress			Total
	CNY			CNY			CNY			CNY			CNY			CNY
Cost
At January 1, 2016		22,996			33,921			7,648			7,319			34,276			106,160
Additions		—			—			3			—			5,020			5,023
Transfer		5,515			—			—			—			(5,515	)		—
Disposals		—			—			—			(311	)		—			(311	)
Exchange adjustment		202			21			3			348			2,279			2,853
At December 31, 2016		28,713			33,942			7,654			7,356			36,060			113,725
Acquisition of Bayannaoer Mining		43			—			12			280			—			335
Additions		—			—			71			—			4,137			4,208
Disposals		(5,781	)		(4,688	)		(786	)		(2,017	)		—			(13,272	)
Exchange adjustment		(104	)		(21	)		(173	)		(35	)		(2,388	)		(2,721	)
Disposal of subsidiaries		(22,828	)		(29,233	)		(5,939	)		(5,305	)		(37,809	)		(101,114	)
At December 31, 2017		43			—			839			279			—			1,161
At December 31, 2017 (US$)		6			—			129			44			—			179

Accumulated depreciation and amortization and impairment losses

At January 1, 2016	(13,206	)	(33,608	)	(7,485	)	(2,471	)	—	(56,770	)
Depreciation charge	(1,415	)	—		(55	)	(1,185	)	—	(2,655	)
Disposals	—		—		—		301		—	301
Exchange adjustment	16		—		(1	)	(93	)	—	(78	)
At December 31, 2016	(14,605	)	(33,608	)	(7,541	)	(3,448	)	—	(59,202	)
Depreciation charge	(530	)	—		(25	)	(1,193	)	—	(1,748	)
Disposals	5,121		4,688		715		1,742		—	12,266
Exchange adjustment	(84	)	—		(69	)	(46	)	—	(199	)
Disposal of subsidiaries	10,098		28,920		6,100		2,941		—	48,059
At December 31, 2017	—		—		(820	)	(4	)	—	(824	)
At December 31, 2017 (US$)	—		—		(126	)	(1	)	—	(127	)
Net carrying amount
At December 31, 2016	14,108		334		113		3,908		36,060	54,523
At December 31, 2017	43		—		19		275		—	337
At December 31, 2017 (US$)	6		—		3		43		—	52