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5 TRADE RECEIVABLES (Tables)
12 Months Ended
Dec. 31, 2019
Trade and other receivables [abstract]  
Schedule of trade receivables
    Consolidated
  12/31/2019   12/31/2018
Trade receivables      
Third parties      
Domestic market 1,118,632   1,369,396
Foreign market 1,003,905   852,821
  2,122,537   2,222,217
Allowance for doubtful debts     (245,194)   (237,352)
  1,877,343   1,984,865
Related Parties (note 18 b) 170,588   93,317
  2,047,931   2,078,182
Schedule of gross trade receivables from third parties

The breakdown of gross trade receivables from third parties is as follows:

 

      Consolidated
  12/31/2019   12/31/2018
Current    1,739,746   1,514,847
Past-due up to 30 days       132,845   177,287
Past-due up to 180 days         23,877   47,684
Past-due over 180 days       226,069   482,399
     2,122,537   2,222,217
Schedule of allowance for doubtful debts

The movements in the Group’s allowance for doubtful debts are as follows

 

  Consolidated
  12/31/2019   12/31/2018
Opening balance (237,352)   (191,979)
Expected credit losses (43,313)   (53,706)
Recovery of receivables 35,471   8,333
Closing balance (245,194)   (237,352)