v3.26.1
Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Statement of Cash Flows [Abstract]    
Net cash provided by operating activities $ 33,439,100 $ 3,721,457
Cash flows from investing activities:    
Purchase of property and equipment (4,594,653) (16,042,826)
Net cash used in investing activities (4,594,653) (16,042,826)
Cash flows from financing activities:    
Proceeds from short-term bank borrowings 40,492,046 9,578,453
Repayment of short-term bank borrowings (41,204,386) (9,551,661)
Repayment of long-term bank borrowings (4,127,021) (3,564,964)
Proceeds of borrowings from a related party 12,000,000
Repayment of borrowings to a related party (11,000,000)
Net cash (used in) provided by financing activities (15,839,361) 8,461,828
Effect of exchange rate changes on cash and restricted cash 325,716 (797,384)
Net increase (decrease) in cash and restricted cash 13,330,802 (4,656,925)
Cash and restricted cash at beginning of year 58,860,026 17,149,389
Cash and restricted cash at end of year 72,190,828 12,492,464
Supplemental cash flow information    
Cash paid for interest expense 552,934 506,596
Cash paid for income tax 18,267
Noncash investing and financing activities    
Operating lease right-of-use assets obtained in exchange for operating lease liabilities 1,863,841
Payables related to purchase of property and equipment $ 2,640,420 $ 4,952,299