Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 7,535,193	$ 6,519,212
Pledged deposits	35,601,854	30,836,864
Trade and bills receivable, net	28,109,643	27,413,575
Inventories	50,777,816	49,446,291
Prepayments and other receivables	6,121,156	5,915,080
Receivables from a former subsidiary	1,818,269	5,518,052
Income tax recoverable	58,273	57,934
Total current assets	130,022,204	125,707,008
Property, plant and equipment, net	88,433,232	90,004,527
Construction in progress	15,174,189	9,954,202
Long-term investments, net	950,770	945,237
Prepaid land use rights	12,350,586	12,361,163
Intangible assets, net	1,195,435	1,309,058
Operating lease right-of-use assets, net	1,140,996	1,264,560
Deferred tax assets, net	2,902,856	2,486,979
Total assets	252,170,268	244,032,734
Current liabilities
Trade and bills payable	77,765,458	67,491,435
Short-term bank borrowings	18,634,717	14,907,875
Other short-term loans	602,337	689,096
Accrued expenses and other payables	22,372,971	25,605,661
Payables to a former subsidiary, net	355,913	358,067
Deferred government grants, current	847,584	1,299,715
Product warranty provisions	24,663	26,215
Warrants liability	51,000	136,000
Operating lease liability, current	479,875	575,496
Finance lease liability, current	485,279	844,297
Total current liabilities	121,619,797	111,933,857
Deferred government grants, non-current	5,513,425	5,577,020
Product warranty provisions	471,016	450,613
Operating lease liability, non-current	546,461	607,222
Accrued expenses and other payables, non-current	1,091,878	1,085,525
Total liabilities	129,242,577	119,654,237
Commitments and contingencies
Shareholders’ equity
Common stock $0.001 par value; 500,000,000 authorized; 89,135,064 issued and 88,990,858 outstanding as of December 31, 2022; 89,151,731 issued and 89,007,525 outstanding as of March 31, 2023	89,151	89,135
Donated shares	14,101,689	14,101,689
Additional paid-in capital	246,245,879	246,240,998
Statutory reserves	1,230,511	1,230,511
Accumulated deficit	(133,327,060)	(131,946,705)
Accumulated other comprehensive loss	(7,498,971)	(8,153,644)
Stockholders' equity (deficit) before Treasury Stock	120,841,199	121,561,984
Less: Treasury shares	(4,066,610)	(4,066,610)
Total shareholders’ equity	116,774,589	117,495,374
Non-controlling interests	6,153,102	6,883,123
Total equity	122,927,691	124,378,497
Total liabilities and shareholder’s equity	$ 252,170,268	$ 244,032,734