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EXPENSES BY NATURE (Tables)
 12 Months Ended
Dec. 31, 2018
EXPENSES BY NATURE  
Schedule of expenses classified by nature

 

 

 

 

 

 

 

 

    

2018

    

2017

    

2016

Depreciation and amortization

 

(1,891,814)

 

(2,092,551)

 

(2,535,955)

Labor expenses

 

(5,724,352)

 

(5,514,721)

 

(6,508,834)

Raw material and consumption material

 

(29,623,418)

 

(23,423,950)

 

(22,863,693)

Freight

 

(2,770,516)

 

(2,281,773)

 

(2,279,459)

Impairment of assets

 

 —

 

(1,114,807)

 

(2,917,911)

Gains and losses on assets held for sale and sales of interest in subsidiaries

 

(414,507)

 

(721,682)

 

(58,223)

Reversal of provision for tax liabilities, net

 

 —

 

929,711

 

 —

Other expenses/income, net

 

(1,697,786)

 

(1,563,177)

 

(2,111,181)

 

 

(42,122,393)

 

(35,782,950)

 

(39,275,256)

 

 

 

 

 

 

 

Classified as:

 

  

 

  

 

  

Cost of sales

 

(40,010,100)

 

(33,312,995)

 

(34,187,941)

Selling expenses

 

(570,431)

 

(524,965)

 

(710,766)

Allowance for doubtful accounts

 

(9,914)

 

 —

 

 —

General and administrative expenses

 

(1,082,449)

 

(1,129,943)

 

(1,528,262)

Other operating income

 

235,421

 

260,618

 

242,077

Other operating expenses

 

(270,413)

 

(168,887)

 

(114,230)

Impairment of assets

 

 —

 

(1,114,807)

 

(2,917,911)

Gains and losses on assets held for sale and sales of interest in subsidiaries

 

(414,507)

 

(721,682)

 

(58,223)

Reversal of provision for tax liabilities, net

 

 —

 

929,711

 

 —

 

 

(42,122,393)

 

(35,782,950)

 

(39,275,256)