UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities
Net loss	$ (103,266)	$ (55,649)
Adjustments to reconcile net loss to net cash used in operating activities:
Loss/ (gain) on disposal of property, plant and equipment	16	826
Interest expense	622	0
Depreciation of property, plant and equipment	14,912	9,797
Amortization of land use right and intangible assets	387	399
Noncash lease expenses	1,327	1,465
Share-based compensation	23,988	35,779
Changes in fair value of warrant and convertible loan	1,526	(17)
(Reversal)/ allowance of credit losses	755	(832)
Write-down for obsolete inventories	1,737	928
Impairment loss from long-lived asset	64,912	51
Product warranty	6,329	5,450
Changes in operating assets and liabilities:
Notes receivable	10,278	(19,808)
Accounts receivable	29,622	10,251
Inventories	(1,454)	(16,610)
Prepaid expenses and other current assets	8,462	(6,842)
Operating lease right-of-use assets	(1,928)	(5,850)
Other non-current assets	(44)	199
Notes payable	(13,568)	(15,517)
Accounts payable	(30,516)	11,771
Advance from customers	(2,125)	(968)
Accrued expenses and other liabilities	(12,374)	1,020
Operating lease liabilities	(267)	3,364
Other non-current liabilities	2,811	(215)
Net cash (used in) generated from operating activities	2,142	(41,008)
Cash flows from investing activities
Purchases of property, plant and equipment	(13,186)	(93,630)
Purchase of short-term investments	0	(419)
Proceeds on disposal of property, plant and equipment	180	648
Proceeds from maturity of short-term investments	5,564	0
Net cash used in investing activities	(7,442)	(93,401)
Cash flows from financing activities
Proceeds from borrowings	40,462	9,232
Repayment of bank borrowings	(23,449)	(3,939)
Convertible loan borrowing from a shareholder	12,000	0
Payment for debt issue costs	(525)	0
Net cash generated from financing activities	28,488	5,293
Effect of exchange rate changes	(6,893)	(3,182)
(Decrease) increase in cash, cash equivalents and restricted cash	16,295	(132,298)
Cash, cash equivalents and restricted cash at beginning of the period	88,189	302,617
Cash, cash equivalents and restricted cash at end of the period	104,484	170,319
Cash and cash equivalents	68,183	142,766
Restricted cash	36,301	27,553
Total cash, cash equivalents and restricted cash	104,484	170,319
Non-cash investing and financing activities
Payable for purchase of property, plant and equipment	$ 96,771	$ 82,968