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TRADE ACCOUNTS RECEIVABLE (Tables) | 12 Months Ended
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Dec. 31, 2019
TRADE ACCOUNTS RECEIVABLE |
Schedule of trade accounts receivable by type of customer |
|  | December 31, |  | December 31,
|  | 2019 |  | 2018
Domestic customers |  |  |  |
Third parties |  | 1,027,034 |  | 853,684
Receivables Investment Fund ("FIDC") |  | — |  | 22,299
Related parties (note 11) |  | 23,761 |  | 36,727
Foreign customers |  |  |  |
Third parties |  | 2,027,018 |  | 1,661,527
(-) Expected credit losses |  | (41,996) |  | (37,179)
|  | 3,035,817 |  | 2,537,058
Schedule of trade accounts receivable by maturity |
|  | December 31, |  | December 31,
|  | 2019 |  | 2018
Current |  | 2,552,459 |  | 2,119,188
Overdue |  |  |  |
Up to 30 days |  | 180,909 |  | 291,050
From 31 to 60 days |  | 148,388 |  | 54,845
From 61 to 90 days |  | 20,448 |  | 10,982
From 91 to 120 days |  | 20,680 |  | 7,446
From 121 to 180 days |  | 17,899 |  | 6,285
More than 180 days |  | 95,034 |  | 47,262
|  | 3,035,817 |  | 2,537,058
Schedule of rollforward of expected credit losses, trade accounts receivable |
|  | December 31, |  | December 31,
|  | 2019 |  | 2018
Beginning balance |  | (37,179) |  | (38,740)
Business combination with Fibria (1) |  | (5,947) |  | —
Addition |  | (18,650) |  | (11,578)
Reversal |  | 6,364 |  | 5,128
Write-off |  | 13,383 |  | 8,993
Exchange rate variation |  | 33 |  | (982)
Ending balance |  | (41,996) |  | (37,179)
| 1) |  | Business combination with Fibria and its subsidiaries held on January 3, 2019, Note 1.2.1.

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