Inventories (Table)

12 Months Ended

Dec. 31, 2021

Disclosure Of Inventories Explanatory [Abstract]

Disclosure of detailed information about inventories [Text Block]

The composition of inventory at each period-end is as follows:

Type of inventory	As of December 31, 2021		As of December 31, 2020
	ThUS$		ThUS$
Raw material		12,508		10,694
Production supplies		41,114		31,007
Products-in-progress		527,118		487,830
Finished product		603,036		563,497
Total		1,183,776		1,093,028

Disclosure of information about inventory reserves [Text Block]

The breakdown of inventory allowances is detailed as follows:

Type of inventory	As of December 31, 2021		As of December 31, 2020
		ThUS$		ThUS$
Raw material and supplies for production		1,865		1,934
Products-in-progress		59,858		66,122
Finished product		14,169		12,874
Total		75,892		80,930

Disclosure of movements in provisions for inventories [Text Block]

Conciliation	As of December 31, 2021			As of December 31, 2020			As of December 31, 2019
	ThUS$			ThUS$			ThUS$
Beginning balance		80,930			88,174			105,282
Increase in Lower Value (1)		(3,650	)		(5,404	)		(6,987	)
Additional Provision Differences of Inventory (2)		330			(704	)		(123	)
Increase / Decrease eventual differences and others (3)		-			1,244			(6,262	)
Provision Used		(1,718	)		(2,380	)		(3,736	)
Total changes		(5,038	)		(7,244	)		(17,108	)
Final balance		75,892			80,930			88,174

(1) There are three types of Lower Value Provisions: (a) Economic Realizable Lower Value, (b) Potential Inventory with Uncertain Future Use and (c) Reprocessing Costs of Off-Specification Products.

(2) Provisions for Inventory Differences generated when physical differences are detected when taking inventory, which exceed the tolerance levels for this process.

(3) This algorithm corresponds to the provision of diverse percentages based on the complexity in the measurement and rotation of stock, as well as standard differences based on previous results, as is the case with provisions relating to Commercial Offices.