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Selling expenses (Tables)
12 Months Ended
Dec. 31, 2021
Disclosure of Selling expenses [Abstract]  
Schedule of Selling Expenses

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Amounts in US$ ‘000

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2021

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2020

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2019

Transportation

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4,233

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4,787

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12,985

Selling taxes and other

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4,497

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1,057

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1,128

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8,730

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5,844

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14,113