Unaudited condensed consolidated balance sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,119,476	$ 964,100
Short-term investments	0	445,000
Accounts receivable (net of allowance for credit loss of $8 and $11 as of September 30, 2022 and December 31, 2021, respectively)	27,736	47,474
Notes receivable	10,251	7,335
Inventories, net	29,131	18,951
Value added tax recoverable - current	1,080	0
Prepayments and other current assets	22,157	18,021
Total current assets	1,209,831	1,500,881
Restricted cash, non-current	803	803
Long term investments (including the fair value measured investment of $3,316 and $15,383 as of September 30, 2022 and December 31, 2021, respectively)	3,316	15,605
Prepayments for equipment	4,068	989
Property and equipment, net	50,528	43,102
Operating lease right-of-use assets	20,269	14,189
Land use rights, net	6,824	7,811
Intangible assets, net	1,540	1,848
Long-term deposits	1,329	870
Value added tax recoverable	6	23,858
Total assets	1,298,514	1,609,956
Current liabilities:
Accounts payable	90,112	126,163
Current operating lease liabilities	6,980	5,927
Other current liabilities	58,456	60,811
Total current liabilities	155,548	192,901
Deferred income	23,205	27,486
Non-current operating lease liabilities	13,892	9,613
Total liabilities	192,645	230,000
Commitments and contingencies (Note 14)
Shareholders’ equity
Ordinary shares (par value of $0.000006 per share; 5,000,000,000 shares authorized; 961,829,720 and 955,363,980 shares issued as of September 30, 2022 and December 31, 2021, respectively; 959,724,940 and 954,981,050 shares outstanding as of September 30, 2022 and December 31, 2021, respectively)	6	6
Additional paid-in capital	2,877,361	2,825,948
Accumulated deficit	(1,799,591)	(1,418,074)
Accumulated other comprehensive income (loss)	39,549	(23,645)
Treasury Stock (at cost, 2,104,780 and 382,930 shares as of September 30, 2022 and December 31, 2021, respectively)	(11,456)	(4,279)
Total shareholders’ equity	1,105,869	1,379,956
Total liabilities and shareholders’ equity	$ 1,298,514	$ 1,609,956