Property, Plant and Equipment, Net (Tables)

6 Months Ended

Jun. 30, 2019

Property, Plant and Equipment, Net [Abstract]

Schedule of property, plant and equipment, net

	December 31,			June 30,
	2018			2019
Buildings	$	23,626,924		$	28,627,067
Machinery and equipment		22,159,752			22,450,179
Office equipment		218,581			219,741
Motor vehicles		204,368			190,176
		46,209,625			51,487,163
Impairment		(1,840,596	)		(1,843,989	)
Accumulated depreciation		(5,460,526	)		(6,837,150	)
Carrying amount	$	38,908,503		$	42,806,024