Property, Plant and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment, Net.

Schedule of property, plant and equipment

	As of December 31,
	2012		2013		2013
	(RMB)		(RMB)		($)
Buildings and improvements	475,282,500		626,308,198		102,725,680
Machinery	836,323,374		891,911,639		146,289,367
Office equipment and furnishing	1,406,173		1,464,293		240,170
Motor vehicles	4,650,976		4,650,975		762,842
Total cost	1,317,663,023		1,524,335,105		250,018,059
Total accumulated depreciation	(277,738,654	)	(380,612,477	)	(62,427,213	)
Construction in progress	8,009,646		—		—
Total property, plant, and equipment, net	1,047,934,015		1,143,722,628		187,590,846