Consolidated Balance Sheets - USD ($)
|
Dec. 31, 2017 |
Dec. 31, 2016 |
| Current assets: |
|
|
| Cash and cash equivalents |
$ 229,660,148
|
$ 83,948,770
|
| Prepayments and other current assets |
954,506
|
143,527
|
| Total current assets |
230,614,654
|
84,092,297
|
| Investments in equity investees |
1,650,348
|
500,000
|
| Prepayments for equipment |
126,411
|
1,417,029
|
| Property and equipment |
11,853,764
|
1,246,058
|
| Intangible assets |
20,089
|
7,000
|
| Long term deposits |
306,825
|
267,980
|
| Value added tax recoverable |
5,062,137
|
1,376,921
|
| Total assets |
249,634,228
|
88,907,285
|
| Current liabilities: |
|
|
| Accounts payable |
8,967,685
|
523,338
|
| Warrant liabilities |
|
3,900,000
|
| Other payables |
3,101,459
|
750,118
|
| Total current liabilities |
12,069,144
|
5,173,456
|
| Deferred income |
2,394,124
|
778,434
|
| Total liabilities |
14,463,268
|
5,951,890
|
| Commitments and contingencies (Note 16) |
|
|
| Mezzanine equity |
|
|
| Total mezzanine equity |
|
134,507,144
|
| Shareholders' (deficit) equity |
|
|
| Ordinary shares (par value of US$0.00006 per share; 83,333,333 shares authorized, 9,657,175 and 49,912,570 shares issued and outstanding as of December 31,2016 and 2017, respectively) |
2,995
|
579
|
| Subscription receivable |
(18)
|
(5)
|
| Additional paid-in capital |
345,269,688
|
9,313,646
|
| Accumulated deficit |
(110,551,613)
|
(60,167,437)
|
| Accumulated other comprehensive (loss) income |
449,908
|
(698,532)
|
| Total shareholders' (deficit) equity |
235,170,960
|
(51,551,749)
|
| Total liabilities, mezzanine equity and shareholders' (deficit) equity |
$ 249,634,228
|
88,907,285
|
| Series A1 Convertible Preferred Shares |
|
|
| Mezzanine equity |
|
|
| Total mezzanine equity |
|
10,028,572
|
| Series A2 Convertible Preferred Shares |
|
|
| Mezzanine equity |
|
|
| Total mezzanine equity |
|
18,278,572
|
| Series B1 Convertible Preferred Shares |
|
|
| Mezzanine equity |
|
|
| Total mezzanine equity |
|
53,100,000
|
| Series B2 Convertible Preferred Shares |
|
|
| Mezzanine equity |
|
|
| Total mezzanine equity |
|
$ 53,100,000
|