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Exploration in operating units

12 Months Ended

Dec. 31, 2018

Disclosure Of Exploration In Operating Units [Abstract]

Disclosure Of Exploration In Operating Units [Text Block]

22.

Exploration in operating units

This caption is made up as follows:

		2018				2017				2016
		US$(000)				US$(000)				US$(000)

Beginning balance of finished goods and products in process, net of depreciation and amortization			5,157				5,309				3,106

Exploration in operating units
Services provided by third parties			71,927				79,837				81,464
Consumption of materials and supplies			8,605				8,236				12,685
Direct labor			2,446				2,373				1,974
Rentals			2,072				1,527				1,608
Electricity and water			1,524				1,328				21
Maintenance and repair			450				100				62
Transport			192				587				317
Depreciation and amortization			23				-				-
Other			784				109				379
Total exploration in operating units			88,023				94,097				98,510
Final balance of products in process and finished goods, net of depreciation and amortization			(2,837	)			(4,478	)			(5,467	)

Exploration in operating units			90,343				94,928				96,149