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5. PROPERTY, PLANT AND EQUIPMENT, NET (Details Narrative) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Land | $ 26,162,718 |  | $ 26,162,718 |  | $ 27,432,351
Sales and administrative expenses [Member] |  |  |  |  |
Depreciation and amortization expense | 4,684,870 | $ 5,294,777 | 9,373,118 | $ 10,658,819 |
Direct labor and factory overheads incurred during plant shutdown | 4,420,180 |  | 8,857,147 |  |
Cost of net revenue |  | 5,001,792 |  | 10,074,234 |
Cost of administrative expenses | $ 262,689 | $ 292,985 | $ 515,971 | $ 584,585 |

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