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EXIT and DISPOSAL ACTIVITIES (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
ASSETS: |  |  |
Cash and cash equivalents | $ 982,019 | $ 6,873,659 |
Restricted cash | 109,171 | 2,078,601 |
Accounts receivable, net of allowance for doubtful accounts of $7,993 and nil as of December 31, 2017 and 2018 | 0 | 2,271,372 |
Notes receivable | 1,524,747 | 6,506,648 |
Prepaid expenses and other current assets | 23,889 | 1,492,944 |
Advances to suppliers | 6,132 | 1,080,506 |
Inventories | 0 | 3,919,834 |
Amount due from related parties | 2,367,657 | 8,991,640 |
Total current assets associated with discontinued operations | 5,013,615 | 33,215,204 |
Property, plant and equipment, net | 0 | 93,662,275 |
Prepaid land use rights, net | 0 | 1,812,333 |
Long-lived assets held-for-sale | 59,523,588 | 0 |
Total non-current assets associated with discontinued operations | 59,523,588 | 95,474,608 |
LIABILITIES: |  |  |
Short-term bank borrowings, including current portion of long-term bank borrowings | 10,176,600 | 25,515,860 |
Accounts payable | 685,569 | 3,092,222 |
Notes payable | 109,171 | 2,078,601 |
Advances from customers | 0 | 313,371 |
Payables for purchases of property, plant and equipment | 1,074,155 | 3,408,015 |
Accrued expenses and other current liabilities | 1,315,848 | 5,312,623 |
Amount due to related parties | 5,314,587 | 4,932,778 |
Total current liabilities associated with discontinued operations | 18,675,930 | 44,653,470 |
Long-term bank borrowings | 0 | 2,151,940 |
Deferred government subsidies | 723,035 | 846,826 |
Total non-current liabilities associated with discontinued operations | 723,035 | 2,998,766 |
Revenues | 7,112,528 | 29,652,458 | $ 32,882,110
Cost of revenues | (9,782,928) | (30,227,536) | (30,264,391)
Gross profit (loss) | (2,670,400) | (575,078) | 2,617,719
Operating (expenses) income: |  |  |
Selling, general and administrative expenses | (2,723,335) | (1,621,977) | (1,022,179)
Research and development expenses | (608) | (204,658) | (123,024)
Long-lived assets impairment | (18,769,938) | (2,987,668) | (198,689)
Other operating income, net | 1,928,362 | 3,019,556 | 3,040,004
Total operating income (expenses) | (19,565,519) | (1,794,747) | 1,696,112
Income (loss) from operations | (22,235,919) | (2,369,825) | 4,313,831
Interest expense | (1,074,251) | (1,743,124) | (1,848,002)
Interest income | 22,794 | 22,716 | 258,737
Exchange (loss) gain | (17,669) | 2,308 | (13,975)
Income (loss) from discontinued operations, net of tax of nil | $ (23,305,045) | $ (4,087,925) | $ 2,710,591

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