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Income Taxes (Details 1) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Deferred tax assets (liabilities)    
Depreciation and amortization of property, plant and equipment $ 8,250,025 $ 7,097,828
Impairment of property, plant and equipment 537,562 546,531
Miscellaneous 338,984 289,799
Net operating loss carryover of PRC company 376,888 342,933
Total deferred tax assets 9,503,459 8,277,091
Less: Valuation allowance
Total deferred tax assets, net $ 9,503,459 $ 8,277,091