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Lease (Tables)

9 Months Ended

Sep. 30, 2021

Lease [Abstract]

Schedule of right-of-use assets

		Prepaid land lease payments
Balance as of January 1, 2021		$	7,500,780
Amortization charge for the period			(130,211	)
Foreign exchange adjustment			94,857
Balance as of September 30, 2021		$	7,465,426

Schedule of net investment in sales-type leases

		December 31,				September 30,
		2020				2021
Total future minimum lease payments receivable		$	1,210,305			$	1,950,163
Less: unearned income, representing interest			(124,653	)			(130,783	)
Present value of minimum lease payments receivables			1,085,652				1,819,380
Less: Current portion			(235,245	)			(838,649	)
Non-current portion		$	850,407			$	980,731

Schedule of future minimum lease payments receivable for sales type leases

12 months ending September 30,		Total Minimum Lease Payments to be Received				Amortization of Unearned Income				Net Investment in Sales Type Leases
2022		$	919,238			$	80,589			$	838,649
2023			678,840				42,903				635,937
2024			352,085				7,291				344,794
2025			-				-				-
2026			-				-				-
Thereafter			-				-				-
		$	1,950,163			$	130,783			$	1,819,380

Schedule of maturities of lease liabilities

		Operating leases
12 months ending September 30,
2022		$	835,158
2023			835,158
2024			-
2025			-
Thereafter			-
Total undiscounted cash flows			1,670,316
Less: imputed interest			(115,646	)
Present value of lease liabilities		$	1,554,670

Schedule of lease term and discount rate

Lease term and discount rate

		September 30, 2021
Weighted-average remaining lease term - years			2.69
Weighted-average discount rate (%)			6.175	%

Schedule of operating lease expenses

		Three months ended September 30,								Nine months ended September 30,
		2020				2021				2020				2021

Operating lease cost – straight line			-				175,932				-				290,051
Total lease expense			-				175,932			$	-			$	290,051