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Consolidated Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash Flows from Operating Activities:    
Net loss $ (2,866,777) $ (20,702,044)
Depreciation and amortization 2,679,470 2,928,799
Inventory write off 253,465
Bad debt expense 115,186 3,153
Impairment loss 17,015,117
Changes in assets and liabilities:    
Trade accounts and other receivables (613,678) (478,918)
Advances to suppliers (1,708) (361)
Inventory 807,592 1,999,978
Trade accounts payable (214,015) 324,180
Other payables and accrued expenses (15,217) 391,171
Change in bankers' acceptance notes payable (111,160) (1,158,728)
Advances from customers 169,736 (12,875)
Prepaid expenses 8,311 45,375
Net Cash Provided by Operating Activities (42,260) 608,312
Cash Flows from Investing Activities:    
Purchases of property and equipment (867,307) (136,003)
Net Cash Used in Investing Activities (867,307) (136,003)
Cash Flows from Financing Activities:    
Payments of construction term loan (2,174,669) (2,174,399)
Proceeds from lines of credit 2,856,066
Payments of line of credit (72,489)
Borrowings and interest from related party 206,908 691,459
Repayments to related party (191,639) (245,830)
Net Cash Used in Financing Activities 624,177 (1,728,770)
Effect of Exchange Rate Changes on Cash 58,156 (19,179)
Net Decrease in Cash, Cash Equivalents and Restricted Cash (227,234) (1,275,640)
Cash and Cash Equivalents at Beginning of Period 1,184,887 2,460,527
Cash, Cash Equivalents and Restricted Cash at End of Period 957,653 1,184,887
Cash and Cash Equivalents 957,653 1,074,979
Restricted cash 109,908
Cash, Cash Equivalents and Restricted Cash at End of Period 957,653 1,184,887
Supplemental Cash Flow Information:    
Cash paid for income taxes
Cash paid for interest 237,530 299,164
Supplemental Noncash Investing and Financing Activities:    
Accounts receivable collected with banker's acceptances 687,347 869,625
Conversion of officer wages to common stock 864,480
Inventory purchased with banker's acceptances 682,791 843,867
Right-of-use assets obtained in exchange for operating lease obligations $ 229,673 $ 229,644