EXPENSES BY NATURE (Tables)

12 Months Ended

Dec. 31, 2017

EXPENSES BY NATURE

Schedule of expenses classified by nature

	2017		2016		2015
Depreciation and amortization	(2,092,551	)	(2,535,955	)	(2,607,909	)
Labor expenses	(5,514,721	)	(6,508,834	)	(7,018,129	)
Raw material and consumption material	(23,423,950	)	(22,863,693	)	(27,126,417	)
Freight	(2,281,773	)	(2,279,459	)	(2,538,071	)
Impairment of assets	(1,114,807	)	(2,917,911	)	(4,996,240	)
Gains and losses on assets held for sale and sales of interest in subsidiaries and associate company	(721,682	)	(58,223	)	—
Reversal of contingent liabilities, net	929,711		—		—
Other expenses/income, net	(1,563,177	)	(2,111,181	)	(2,485,485	)
	(35,782,950	)	(39,275,256	)	(46,772,251	)
Classified as:
Cost of sales	(33,312,995	)	(34,187,941	)	(39,290,526	)
Selling expenses	(524,965	)	(710,766	)	(785,002	)
General and administrative expenses	(1,129,943	)	(1,528,262	)	(1,797,483	)
Other operating income	260,618		242,077		213,431
Other operating expenses	(168,887	)	(114,230	)	(116,431	)
Impairment of assets	(1,114,807	)	(2,917,911	)	(4,996,240	)
Gains and losses on assets held for sale and sales of interest in subsidiaries and associate company	(721,682	)	(58,223	)	—
Reversal of contingent liabilities, net	929,711		—		—
	(35,782,950	)	(39,275,256	)	(46,772,251	)