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TAX ASSETS AND LIABILITIES - Current tax accounts receivable and payable (Details) - CLP ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
TAX ASSETS AND LIABILITIES      
Tax credits $ 9,815,294 $ 2,532,056  
Total 9,815,294 2,532,056  
Income tax expense 6,762,267 9,338,612 $ 3,184,965
Total $ 6,762,267 $ 9,338,612 $ 3,184,965