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5. PROPERTY, PLANT AND EQUIPMENT, NET (Details Narrative) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Land $ 28,025,014   $ 27,432,351
Sales and administrative expenses [Member]      
Depreciation and amortization expense 4,688,248 $ 5,360,103  
Cost of net revenue 4,504,249 5,068,503  
Cost of administrative expenses $ 183,999 $ 291,600