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Costs applicable to sales (Tables)

12 Months Ended

Dec. 31, 2017

Minera Yanacocha SRL and subsidiary [Member]

Disclosure Of Detailed Information About Cost Of Sales [Text block] [Text Block]

This caption is made up as follows:

		2017			2016			2015
		US$(000)			US$(000)			US$(000)

Beginning balance of finished goods and in-process			446,503			544,325			660,763
Beginning balance of provision for net realizable value, note 8(b)			(84,374)			(90,298)			(163,094)
Consumption of supplies			240,881			228,376			210,384
Personnel expenses			99,702			87,258			102,867
Other services			66,408			73,779			82,787
Maintenance			24,033			36,213			38,646
Power			23,565			27,270			27,713
Depreciation and amortization			87,783			140,712			223,142
Workers' profit participation			1,242			12,394			28,852
Reclamation expenses related to leach pads, note 12(b)			124,124			78,494			-
Ending balance of provision for net realizable value, note 8(b)			62,540			84,374			90,298
Ending balance of finished goods and in-process			(345,489)			(446,503)			(544,325)
			746,918			776,394			758,033