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33. Other operating expense, net (Tables)
 12 Months Ended
Dec. 31, 2019
Other Operating Expense Net  
Other operating expense, net
  Note   2019   2018   2017
Other operating income              
Services provided to third parties        180,142      114,593      137,321
Commissions on municipal taxes collection        128,907      118,538     78,973
Related parties 36.a     20,075     68,125      6,555
Income from non-reimbursable customer contributions        6,584      8,572      6,723
Fines to suppliers         19,910     89,002     12,011
Expense recovery        163,550   -   -
Other       67,108     95,935      1,084
Total other operating income        586,276      494,765      242,667
               
Other operating expense              
Gratifications for services     (192,361)   (114,199)   (124,249)
Cost for services provided to third parties        (97,274)      (80,619)   (100,316)
Severance paid        (21,530)      (25,595)      (43,598)
Debit and Credit Tax     (792,892)   (860,939)   (737,366)
Provision for contingencies     (1,367,232)   (1,113,444)   (833,993)
Disposals of property, plant and equipment      (63,592)   (260,361)      (76,614)
Other        (21,797)      (70,619)      (22,140)
Total other operating expense     (2,556,678)   (2,525,776)   (1,938,276)
Other operating expense, net     (1,970,402)   (2,031,011)   (1,695,609)