Income tax (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Of Income tax [Abstract]

Major components of tax expense income [text block]

Amounts in US$ '000	2018			2017			2016
Current tax		(101,456	)		(48,449	)		(12,359	)
Deferred income tax (Note 18)		(4,784	)		5,304			555
		(106,240	)		(43,145	)		(11,804	)

Summary of Income Tax Reconciliation Explanatory [text block]

The tax on the Group’s profit (loss) before tax differs from the theoretical amount that would arise using the weighted average tax rate applicable to profits of the consolidated entities as follows:

Amounts in US$ '000	2018			2017			2016
Profit (Loss) before tax		208,907			25,308			(48,842	)
Tax losses from non-taxable jurisdictions		42,808			22,708			12,318
Taxable profit (loss)		251,715			48,016			(36,524	)
Income tax calculated at domestic tax rates applicable to Profit (Losses) in the respective countries		(102,211	)		(31,107	)		(809	)
Tax losses where no deferred tax benefit is recognized		(7,344	)		(8,111	)		(6,616	)
Effect of currency translation on tax base		3,336			(2,330	)		(2,840	)
Changes in the income tax rate (Note 16)		(1,874	)		542			220
Previously unrecognized tax losses		4,882			-			-
Non-taxable results (a)		(3,029	)		(2,139	)		(1,759	)
Income tax		(106,240	)		(43,145	)		(11,804	)

(a) Includes non-deductible expenses in each jurisdiction and changes in the estimation of deferred tax assets and liabilities.

Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits Explanatory [text block]

The Group has significant tax losses available which can be utilised against future taxable profit in the following countries:

Amounts in US$ '000	2018		2017		2016
Chile (a)		315,733		345,104		280,290
Brazil (a)		38,011		33,721		16,057
Argentina (b)		5,490		4,849		2,908
Total tax losses at 31 December		359,234		383,674		299,255

(a) Taxable losses have no expiration date.

(b) Expiring dates for tax losses accumulated at 31 December 2018 are:

Expiring date	Amounts in US$ '000
2021		372
2022		5,118