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22 EXPENSES BY NATURE (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
ExpensesByNatureLineItems [Line Items] |  |  |  |
Production costs |  | R$ 17,263,264 | R$ 16,105,657 | R$ 13,596,141
Sales expenses |  | 2,342,805 | 2,263,688 | 1,815,107
General and Administrative Expenses |  | 511,065 | 494,023 | 415,841
Other operating expenses |  | 4,631,236 | (83,332) | 1,944,495
Net |  | 2,406,851 | 1,330,706 | 646,944
Depreciation Amortization and Depletion [Member] |  |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |  |
Production costs |  | 1,385,306 | 1,145,793 | 1,376,862
Sales expenses |  | 11,539 | 5,850 | 8,851
General and Administrative Expenses |  | 24,859 | 23,464 | 23,052
Total |  | 1,421,704 | 1,175,107 | 1,408,765
Other operating expenses | [1] | 97,627 | 97,914 | 44,570
Net |  | R$ 1,519,331 | R$ 1,273,021 | R$ 1,453,335
[1] | Refers mainly to depreciation and amortization of paralyzed assets as described in note 23.

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- Definition The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_99&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_103&doctype=Standard -URIDate 2019-03-27 + Details
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