Leases (Tables)

3 Months Ended

Mar. 31, 2019

Lease cost for the three-month period ended March 31, 2019 is as follows:

	Three-Month Period Ended March 31,
	2019
	US$
Operating lease cost		423,571
Short-term lease cost		179,195
Total lease cost		602,766

Schedule of Maturities of Operating Lease Liabilities

As of March 31, 2019, the maturities of the operating lease liabilities are as follows:

	Remaining Lease Payments US$
2019		1,036,925
2020		1,385,329
2021		1,407,790
2022		1,408,148
2023		1,423,965
Thereafter		22,010,068
Total remaining lease payments		28,672,225
Less: imputed interest		(11,700,822	)
Total operating lease liabilities		16,971,403
Less: current portion		(2,304,598	)
Non-current operating lease liabilities		14,666,805
Weighted-average remaining lease term	18 years
Weighted-average discount rate		6.7	%

Schedule of Supplemental Disclosure of Cash Flow Information

Supplemental cash flow information related to leases is as follows:

	Three-Month Period Ended March 31,
Supplemental disclosure of cash flow information:	2019
Cash paid for amounts included in the measurement of lease liabilities:	US$
Operating cash flows from operating leases		128,517
Right-of-use assets obtained in exchange for new lease liabilities:
Operating lease		16,075,213

Schedule of Future Minimum Annual Lease Payments

As previously disclosed in the consolidated financial statement for the year ended December 31, 2018 and under the previous lease standard (Topic 840), future minimum annual lease payments for the years subsequent to December 31, 2018 and in aggregate are as follows:

	US$
Years ended December 31,
2019		2,174,439
2020		1,486,007
2021		1,486,007
2022		1,446,251
2023		1,482,593
Thereafter		21,176,139