Employee benefits (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure of detailed information about provision for employee benefits [Abstract]

Disclosure of detailed information about provision for employee benefits [Text Block]

Classes of benefits and expenses by employee	As of December 31, 2021		As of December 31, 2020
	ThUS$		ThUS$
Current
Profit sharing and bonuses		1,383		7,770
Performance bonus and operational targets		25,392		1,326
Total		26,775		9,096
Non-current
Profit sharing and bonuses		-		-
Severance indemnity payments		27,099		32,199
Total		27,099		32,199

Disclosure of detailed information about post employment benefit obligations [Text Block]

Reconciliation Changes in the benefit obligation	As of December 31, 2021			As of December 31, 2020			As of December 31, 2019
	ThUS$			ThUS$			ThUS$
Opening balance		9,864			9,586			8,657
cost of service		-			-			-
Interest cost		240			280			336
Actuarial loss		(135	)		506			984
Benefits paid		(419	)		(508	)		(391	)
Total benefit obligation (A)		9,550			9,864			9,586

Reconciliation Changes in plan assets	As of December 31, 2021			As of December 31, 2020			As of December 31, 2019
	ThUS$			ThUS$			ThUS$
Fair value of plan assets at the start of the year		12,888			8,754			8,404
Actual gains on plan assets		1,028			4,642			741
Benefits paid		(419	)		(508	)		(391	)
Fair value of plan assets as of the year-end (B)		13,497			12,888			8,754
Net value (A – B)		3,947			3,025			(832	)
Items not yet recognized as components of net periodic pension costs:
Net actuarial loss at the beginning of the year		192			(3,634	)		(3,022	)
Amortization during the year		-			326			242
Estimated net gain for the year		847			3,500			(854	)
Movement to recognize minimum pension obligations		1,039			192			(3,634	)

Cost of service or benefits received during the year	As of December 31, 2021			As of December 31, 2020			As of December 31, 2019
	ThUS$			ThUS$			ThUS$
Cost of service or benefits received during the year		-			-			-
Interest cost of benefit obligation		240			280			336
Actual gains on plan assets		1,028			4,642			741
Amortization of prior year losses		-			326			242
Net gains during the year		847			3,500			(854	)
Net periodic pension costs		(76	)		(31	)		(33	)

Disclosure of net defined benefit liability (asset) [text block]

As of December 31, 2021, and 2020, severance indemnities calculated at the actuarial value are as follows:

Staff severance indemnities	As of December 31, 2021			As of December 31, 2020			As of December 31, 2019
	ThUS$			ThUS$			ThUS$
Opening balance		(32,199	)		(27,814	)		(28,233	)
Current cost of service		(4,978	)		(3,804	)		(2,880	)
Interest cost		(1,303	)		(1,486	)		(1,661	)
Actuarial gain loss		3,999			(2,826	)		(2,514	)
Exchange rate difference		4,971			(1,513	)		2,475
Benefits paid during the year		2,411			5,244			4,999
Total		(27,099	)		(32,199	)		(27,814	)

Disclosure of detailed information about employee Actuarial assumption rate [Text Block]

The liability recorded for staff severance indemnity is valued at the actuarial value method, using the following actuarial assumptions:

Actuarial assumptions	As of December 31, 2021			As of December 31, 2020			As of December 31, 2019			Annual/Years
Mortality rate		RV - 2014			RV - 2014			RV - 2014
Actual annual interest rate		5.67	%		3.65	%		3.68	%
Voluntary retirement rate:
Men		6.49	%		6.49	%		6.49	%		Annual
Women		6.49	%		6.49	%		6.49	%		Annual
Salary increase		3.00	%		3.00	%		3.00	%		Annual
Retirement age:
Men		65			65			65			Years
Women		60			60			60			Years

Disclosure Of Sensitivity Analysis For Actuarial Assumptions Explanatory [Text Block]

As of December 31, 2021, and 2020, the Company has conducted a sensitivity analysis of the main assumptions of the actuarial calculation, determining the following:

Sensitivity analysis as of December 31, 2021	Effect + 100 basis points			Effect - 100 basis points
	ThUS$			ThUS$
Discount rate		(1,614	)		1,817
Employee turnover rate		(212	)		237

Sensitivity analysis as of December 31, 2020	Effect + 100 basis points			Effect - 100 basis points
	ThUS$			ThUS$
Discount rate		(1,985	)		2,234
Employee turnover rate		(261	)		291