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Consolidated Balance Sheets - USD ($)
Dec. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 23,915,856 $ 16,117,949
Security deposit 93,475 33,700
Short-term investments 957,729 2,319,247
Interest receivable 3,825 12,594
Prepaid expenses and other current assets, net 5,053,824 5,212,285
Total current assets 30,024,709 23,695,775
Non-current assets:    
Operating right-of-use assets, net 238,330 556,104
Property and equipment, net 2,257,794 4,758,279
Intangible assets, net 3,139,896 705,309
Security deposit 57,300
Prepayments for long-term asset 120,000
Long term equity investments 160,000
Deferred tax assets 30,584 342,369
Total non-current assets 5,666,604 6,699,361
TOTAL ASSETS 35,691,313 30,395,136
Current liabilities:    
Convertible Note 7,500,000 9,000,000
Interest payable 419,005 423,131
Accrued expenses and other current liabilities 2,466,436 1,588,562
Operating lease liabilities 282,279 352,178
Total current liabilities 11,577,295 12,280,090
Non-current liabilities:    
Operating lease liabilities 282,279
Deferred tax liabilities 25,200  
Total non-current liabilities 25,200 282,279
TOTAL LIABILITIES 11,602,495 12,562,369
Commitments and contingencies
Shareholders’ equity:    
Ordinary shares ($0.004 par value, 1,000,000,000 shares authorized as of December 31, 2023 and 2024, and 60,819,897 and 62,299,897 shares issued and outstanding as of December 31, 2023 and December 31, 2024, respectively) 249,218 243,298
Additional paid-in capital 703,098,695 693,093,915
Accumulated deficit (680,448,810) (676,677,485)
Accumulated other comprehensive income 1,189,715 1,173,039
Total shareholders’ equity 24,088,818 17,832,767
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY 35,691,313 30,395,136
Related Party [Member]    
Current assets:    
Amounts due from related parties
Current liabilities:    
Amounts due to related parties $ 909,575 $ 916,219