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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net loss | $ (25,800,045) | $ (69,963,986)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities: |  |
Interest on finance lease obligation | 144,881 | 159,839
Amortization of prepaid land leases | 0 | 761,713
Depreciation and amortization | 14,060,927 | 17,443,318
Allowance for obsolete and slow-moving inventories | 0 | 21,248
Write-off/impairment loss on property, plant and equipment | 0 | 1,397,313
Write-off of prepaid land lease | 0 | 4,004,788
Loss on demolition of factory | 0 | (18,644,473)
Impairment for goodwill | 0 | (27,966,050)
Unrealized translation difference | (421,657) | (1,315,454)
Deferred tax asset | 2,746,770 | (13,087,855)
Stock-based compensation expense - options | 45,900 | 496,200
Shares issued from treasury stock for services | 21,600 | 0
Changes in assets and liabilities: |  |
Accounts receivable | (5,070,180) | 30,241,680
Other receivables | 11,794 | (11,289)
Inventories | (700,476) | 1,192,262
Prepayments and deposits | 14,166 | (81,469)
Payable and accrued expenses | (102,963) | (106,163)
Retention payable | 0 | (597,991)
Taxes payable | (374,575) | 175,994
Operating lease | 114,746 | 0
Net cash (used in) provided by operating activities | (15,309,112) | 17,340,671
CASH FLOWS USED IN INVESTING ACTIVITIES |  |
Additions of prepaid land leases | 0 | (680,975)
Purchase of property, plant and equipment | (60,611,949) | (35,273,307)
Net cash used in investing activities | (60,611,949) | (35,954,282)
CASH FLOWS USED IN FINANCING ACTIVITIES |  |
Repayment of capital lease obligation | (275,509) | (294,295)
Net cash used in financing activities | (275,509) | (294,295)
EFFECTS OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | (2,500,379) | (10,999,918)
NET DECREASE IN CASH AND CASH EQUIVALENTS | (78,696,949) | (29,907,824)
CASH AND CASH EQUIVALENTS - BEGINNING OF YEAR | 178,998,935 | 208,906,759
CASH AND CASH EQUIVALENTS - END OF YEAR | 100,301,986 | 178,998,935
Cash paid during the period for: |  |
Income taxes | 0 | 0
Operating right-of-use assets obtained in exchange for lease obligations | 8,241,818 | 0
SUPPLEMENTAL DISCLOSURE OF CASH NON-CASH INVESTING AND FINANCING ACTIVITIES |  |
Purchase of property, plant and equipment included in retention payable | 3,515,132 | 0
Par value of common stock issued upon cashless exercise of options | $ 379 | $ 0

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