Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

18. Loans and Borrowings (Details - Book value)

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18. Loans and Borrowings (Details - Book value) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Loans and borrowings      
Total non-current $ 16,441,879 $ 18,146,247 $ 21,110,316
Total current 2,798,445 4,438,354 4,206,847
Total loans and borrowings 19,240,324 22,584,601 25,317,163
Revolving Lines Of Credit [Member]      
Loans and borrowings      
Total current 686,900 812,913 711,675
Bank Loans [Member]      
Loans and borrowings      
Total non-current 0 0 4,179,528
Total current 330,407 1,604,426 1,683,705
Finance Lease Creditor [Member]      
Loans and borrowings      
Total non-current 15,491,030 17,148,421 16,054,972
Total current 891,305 1,131,182 921,634
Other Loans [Member]      
Loans and borrowings      
Total non-current 950,849 997,826 875,816
Total current $ 889,833 $ 889,833 $ 889,833