Other current and non-current non-financial assets (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure of other non-financial assets [Abstract]

Disclosure of detailed information about other current and non-current non-financial assets [Text Block]

As of December 31, 2021, and 2020, the detail of “Other Current and Non-current Assets” is as follows:

Other non-financial assets, current	As of December 31, 2021		As of December 31, 2020
	ThUS$		ThUS$
Domestic Value Added Tax		26,356		18,107
Foreign Value Added Tax		14,395		7,785
Prepaid mining licenses		1,233		1,025
Prepaid insurance		20,443		10,307
Other prepayments		659		946
Refund of Value Added Tax to exporters		-		14,316
Other taxes		6,030		4,499
Other assets		754		414
Total		69,870		57,399

Other non-financial assets, non-current	As of December 31, 2021		As of December 31, 2020
	ThUS$		ThUS$
Exploration and evaluation expenses (1)		26,752		17,883
Guarantee deposits		622		731
Other assets		6,113		3,428
Total		33,487		22,042

(1) Reconciliation of changes in assets for exploration and mineral resource evaluation, by type

Disclosure of reconciliation of changes in assets for exploration and mineral resource evaluation [Text Block]

Movements in assets for the exploration and evaluation of mineral resources as of December 31, 2021, and 2020:

Conciliation	As of December 31, 2021		As of December 31, 2020			As of December 31, 2019
	ThUS$		ThUS$			ThUS$
Opening balance		17,883		18,654			26,189
Change in assets for exploration and evaluation of mineral resources
Additions		8,071		-			-
Short term reclassifications		83		(526	)		(1,311	)
Increase (decrease) due to transfers and other charges		715		(245	)		(6,224	)
Total changes		8,869		(771	)		(7,535	)
Total		26,752		17,883			18,654

Disclosure of Disbursements for Exploration And Evaluation Explanatory

Explorations in execution	As of December 31, 2021		As of December 31, 2020
	ThUS$		ThUS$
Chile		12,915		14,265
Total		12,915		14,265

Summary Of Detailed Information About Conciliation Of Explorations In Execution

Reconciliation of explorations in execution	As of December 31, 2021			As of December 31, 2020
	ThUS$			ThUS$
Opening balance		14,265			18,654
Disbursements		11,964			-
Reclassifications		(13,314	)		(4,389	)
Total changes		(1,350	)		(4,389	)
Total		12,915			14,265

Summary Of Detailed Information About Reimbursements For Exploration And Evaluation

Economically feasible	Type of Exploration	As of December 31, 2021		As of December 31, 2020
		ThUS$		ThUS$
Chile (1)	Metallic/Non-Metallic		18,154		10,872
Total			18,154		10,872

(1) The value presented for Chile is as of December 2021 for ThUS 5,622, corresponding to non-metallic exploration and evaluation and ThUS$ 12,367 associated with metallic exploration. In December 2020, the amounts of non-metallic exploration were ThUS$ 6,576 and metallic exploration were ThUS$ 4,296 Economically feasible metallic exploration is classified as advanced exploration.

Summary Of Detailed Information About Reconciliation Of Economically Feasible Metalic Explorations

Economically feasible metallic explorations are those classified as advanced exploration.

Economically feasible	As of December 31, 2021			As of December 31, 2020
	ThUS$			ThUS$
Opening balance		10,872			10,009
Additions		8,071			-
Reclassifications from Exploration in execution – Chile		1,906			863
Reclassifications to Exploration in Exploitation-Chile		(2,695	)		-
Total changes		7,282			863
Total		18,154			10,872

Summary Of Detailed Information About Short Term And Long Term Exploitation Conciliation

Short-Term Exploitation reconciliation	As of December 31, 2021			As of December 31, 2020
	ThUS$			ThUS$
Opening balance		1,318			1,367
Amortization		(1,359	)		(1,683	)
Reclassifications		1,276			1,634
Total changes		(83	)		(49	)
Total		1,235			1,318

Long-Term Exploitation conciliation	As of December 31, 2021		As of December 31, 2020
	ThUS$		ThUS$
Opening balance		7,011		8,645
Amortization		-		-
Reclassifications		1,587		(1,634	)
Total changes		1,587		(1,634	)
Total		8,598		7,011