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CURRENT AND DEFERRED TAXES (Tables)
12 Months Ended
Dec. 31, 2017
Major components of tax expense (income) [abstract]  
Schedule of Composition of current tax assets

The composition of the current tax assets is the following:

 

    Current assets     Non-current assets     Total assets  
    As of     As of     As of     As of     As of     As of  
    December 31,     December 31,     December 31,     December 31,     December 31,     December 31,  
    2017     2016     2017     2016     2017     2016  
    ThUS$     ThUS$     ThUS$     ThUS$     ThUS$     ThUS$  
                                     
Provisional monthly                                                
payments (advances)     65,257       43,821       -       -       65,257       43,821  
Other recoverable credits     12,730       21,556       17,532       20,272       30,262       41,828  
Total assets by current tax     77,987       65,377       17,532       20,272       95,519       85,649  
Schedule of composition of current tax liabilities

The composition of the current tax liabilities are as follows:

 

    Current liabilities     Non-current liabilities     Total liabilities  
    As of     As of     As of     As of     As of     As of  
    December 31,     December 31,     December 31,     December 31,     December 31,     December 31,  
    2017     2016     2017     2016     2017     2016  
    ThUS$     ThUS$     ThUS$     ThUS$     ThUS$     ThUS$  
                                     
Income tax provision     3,511       9,632       -       -       3,511       9,632  
Additional tax provision     -       4,654       -       -       -       4,654  
Total liabilities by current tax     3,511       14,286       -       -       3,511       14,286  
Schedule of balances of deferred tax are

The balances of deferred tax are the following:

 

    Assets     Liabilities  
    As of     As of     As of     As of  
    December 31,     December 31,     December 31,     December 31,  
Concept   2017     2016     2017     2016  
    ThUS$     ThUS$     ThUS$     ThUS$  
                         
Depreciation     210,855       11,735       1,401,277       1,387,760  
Leased assets     (103,201 )     (35,922 )     275,142       203,836  
Amortization     (484 )     (15,820 )     54,335       61,660  
Provisions     (9,771 )     222,253       690       (59,096 )
Revaluation of financial instruments     (734 )     -       (4,484 )     (3,223 )
Tax losses     290,973       202,536       (1,188,586 )     (1,126,200 )
Intangibles     -       -       406,536       430,705  
Others     (23,617 )     (202 )     4,787       20,317  
Total     364,021       384,580       949,697       915,759  
Schedule of movements of deferred tax assets and liabilities

Movements of Deferred tax assets and liabilities

 

  (a) From January 1 to December 31, 2015

 

    Opening     Recognized in     Recognized in     Exchange           Ending  
    balance     consolidated     comprehensive     rate           balance  
    Assets/(liabilities)     income     income     variation     Others     Asset (liability)  
    ThUS$     ThUS$     ThUS$     ThUS$     ThUS$     ThUS$  
Depreciation     (871,640 )     (267,891 )     -       8,540       -       (1,130,991 )
Leased assets     (185,775 )     (73,330 )     -       7,803       -       (251,302 )
Amortization     (160,100 )     84,330       -       4,606       -       (71,164 )
Provisions     351,077       150,362       3,911       (126,813 )     -       378,537  
Revaluation of financial instruments     12,806       19,760       (21,103 )     (3,179 )     -       8,284  
Tax losses (*)     722,749       320,397       -       (33,364 )     -       1,009,782  
Intangibles     (523,275 )     (8,362 )     -       167,323       -       (364,314 )
Others     9,587       45,638       -       (62,182 )     (6,845 )     (13,802 )
                                                 
Total     (644,571 )     270,904       (17,192 )     (37,266 )     (6,845 )     (434,970 )

 

  (b) From January 1 to December 31, 2016

 

    Opening     Recognized in     Recognized in     Exchange           Ending  
    balance     consolidated     comprehensive     rate           balance  
    Assets/(liabilities)     income     income     variation     Others     Asset (liability)  
    ThUS$     ThUS$     ThUS$     ThUS$     ThUS$     ThUS$  
Depreciation     (1,130,991 )     (241,435 )     -       (3,599 )     -       (1,376,025 )
Leased assets     (251,302 )     14,833       -       (3,289 )     -       (239,758 )
Amortization     (71,164 )     (4,375 )     -       (1,941 )     -       (77,480 )
Provisions     378,537       (149,969 )     921       53,448       (1,568 )     281,369  
Revaluation of financial instruments     8,284       28,294       (34,695 )     1,340       -       3,223  
Tax losses (*)     1,009,782       304,892       -       14,062       -       1,328,736  
Intangibles     (364,314 )     4,131       -       (70,522 )     -       (430,705 )
Others     (13,802 )     (30,185 )     -       22,234       1,214       (20,539 )
                                                 
Total     (434,970 )     (73,814 )     (33,774 )     11,733       (354 )     (531,179 )

 

  (c) From January 1 to December 31, 2017

 

    Opening     Recognized in     Recognized in     Exchange     Ending  
    balance     consolidated     comprehensive     rate     balance  
    Assets/(liabilities)     income     income     variation     Asset (liability)  
    ThUS$     ThUS$     ThUS$     ThUS$     ThUS$  
Depreciation     (1,376,025 )     185,282       -       322       (1,190,421 )
Leased assets     (239,758 )     (138,879 )     -       294       (378,343 )
Amortization     (77,480 )     22,486       -       174       (54,820 )
Provisions     281,369       (286,267 )     (785 )     (4,778 )     (10,461 )
Revaluation of financial instruments     3,223       2,417       (1,770 )     (120 )     3,750  
Tax losses (*)     1,328,736       152,081       -       (1,257 )     1,479,560  
Intangibles     (430,705 )     24,436       -       (267 )     (406,536 )
Others     (20,539 )     (7,547 )     -       (319 )     (28,405 )
                                         
Total     (531,179 )     (45,991 )     (2,555 )     (5,951 )     (585,676 )
Schedule of deferred tax assets not recognized

Deferred tax assets not recognized:

 

    As of     As of  
    December 31,     December 31,  
    2017     2016  
    ThUS$     ThUS$  
             
Tax losses     81,155       115,801  
Total Deferred tax assets not recognized     81,155       115,801  
Schedule of deferred tax expense and current income taxes

Deferred tax expense and current income taxes:

 

    For the period ended  
    December 31,  
    2017     2016     2015  
    ThUS$     ThUS$     ThUS$  
Current tax expense                        
Current tax expense     127,024       87,307       92,916  
Adjustment to previous period’s current tax     489       2,083       (395 )
Total current tax expense, net     127,513       89,390       92,521  
                         
Deferred tax expense                        
Deferred expense for taxes related to the creation and reversal of temporary differences     45,991       73,814       (270,904 )
Reduction (increase) in value of deferred tax assets during the evaluation of its usefulness     -       -       -  
Total deferred tax expense, net     45,991       73,814       (270,904 )
Income tax expense     173,504       163,204       (178,383 )
Schedule of composition of income tax expense (income)

Composition of income tax expense (income):

 

    For the period ended  
    December 31,  
    2017     2016     2015  
    ThUS$     ThUS$     ThUS$  
                   
Current tax expense, net, foreign     100,657       80,600       89,460  
Current tax expense, net, Chile     26,856       8,790       3,061  
Total current tax expense, net     127,513       89,390       92,521  
                         
Deferred tax expense, net, foreign     21,846       119,175       (280,445 )
Deferred tax expense, net, Chile     24,145       (45,361 )     9,541  
Deferred tax expense, net, total     45,991       73,814       (270,904 )
Income tax expense     173,504       163,204       (178,383 )
Schedule of profit before tax by the legal tax rate

Profit before tax by the legal tax rate in Chile (25.5% and 24.0% at December 31, 2017 and 2016, respectively)

 

    For the period ended     For the period ended  
    December 31,     December 31,  
    2017     2016     2015     2017     2016     2015  
    ThUS$     ThUS$     ThUS$     %     %     %  
                                     
Tax expense using the legal rate (*)     95,425       65,449       (89,472 )     25.50       24.00       22.50  
Tax effect by change in tax rate (*)     897       -       -       0.24       -       -  
Tax effect of rates in other jurisdictions     42,326       16,333       (21,803 )     11.31       5.99       5.48  
Tax effect of non-taxable operating revenues     (44,593 )     (62,419 )     (106,381 )     (11.92 )     (22.89 )     26.75  
Tax effect of disallowable expenses     35,481       132,469       38,677       9.48       48.58       (9.73 )
Tax effect of the use of tax losses not previously recognized     211       -       -       0.06       -       -  
Other increases (decreases) in legal tax charge     43,757       11,372       596       11.69       4.17       (0.15 )
Total adjustments to tax expense using the legal rate     78,079       97,755       (88,911 )     20.86       35.85       22.35  
Tax expense using the effective rate     173,504       163,204       (178,383 )     46.36       59.85       44.85  

 

(*) On September 29, 2014, Law No. 20,780 "Amendment to the system of income taxation and introduces various adjustments in the tax system." was published in the Official Journal of the Republic of Chile. Within major tax reforms that this law contains, the First- Category Tax rate is gradually modified from 2014 to 2018 and should be declared and paid in tax year 2015.

Schedule of deferred taxes related to items charged to net equity

Deferred taxes related to items charged to net equity:

 

    For the period ended  
    December 31,  
    2017     2016  
    ThUS$     ThUS$  
             
Aggregate deferred taxation of components of other comprehensive income     (2,555 )     (33,774 )
Aggregate deferred taxation related to items charged to net equity     -       (807 )