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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities:    
Net income $ 5,240,401 $ 5,840,513
Adjustments to reconcile net income to net cash provided by operating activities:    
Reversal for credit loss (64)
Depreciation of property, plant and equipment 725,762 333,037
Amortization of intangible assets 20,345 11,769
Amortization of operating lease right-of-use assets 369,495 213,488
Amortization of finance lease right-of-use assets 38,495
Provision for inventories 438,681 552,180
Share of profits from equity method investment (1,475,335) (1,431,032)
Provisions/(Benefits) for deferred income tax (419,145) 131,411
Share-based compensation 1,395,176 676,625
Loss   on operating lease early termination 853
Changes in operating assets and liabilities:    
Accounts receivable 329,975 (1,601,880)
Accounts receivable-due from a related party 2,729,418 1,254,624
Inventories (2,541,263) (2,620,454)
Prepaid expenses and other current assets (1,672,525) (274,981)
Other receivables-due from related parties 582,305 (355,145)
Accounts payable (2,981,256) (3,037,042)
Notes payable (22,700) 754,083
Income tax payable 474,839 1,150,797
Accrued expenses and other current liabilities 66,547 681,688
Other payables-due to related parties 322,050 380,049
Operating lease liabilities (389,396) (217,245)
Net cash provided by operating activities 3,194,227 2,480,916
Cash flows from investing activities:    
Purchase of property, plant and equipment (1,305,650) (873,418)
Purchase of intangible assets (63,792) (28,410)
Net proceeds from short-term investment 101,372 288,453
Purchase of construction in progress (41,464) (483,781)
Dividends received from long-term equity investment 1,742,712 1,354,377
Loans to related parties (310,510)
Collection of loans to related parties 12,449 179,036
Net cash provided by investing activities 445,627 125,747
Cash flows from financing activities:    
Proceeds from short-term bank borrowings 1,382,017
Repayments of short-term bank borrowings (1,317,062)
Contribution from non-controlling shareholders 116,171
Net cash provided by financing activities 116,171 64,955
Effect of exchange rate changes 884,072 211,903
Net change in cash, cash equivalents and restricted cash 4,640,097 2,883,521
Cash, cash equivalents and restricted cash at the beginning of period 16,388,000 13,052,455
Cash, cash equivalents and restricted cash at the end of period 21,028,097 15,935,976
Cash and cash equivalents 16,543,610 14,450,968
Restricted cash 4,484,487 1,485,008
Total cash and cash equivalents and restricted cash shown in the unaudited Condensed Consolidated Statements of Cash Flows 21,028,097 15,935,976
Supplemental disclosure of cash flow information:    
Income tax paid 1,839,031 781,335
Interest expenses paid 6,064
Supplemental disclosures of non-cash activities:    
Obtaining operating right-of-use assets in exchange for operating lease liabilities 21,361
Acquiring property, plant and equipment transferred from construction in progress 155,923 284,456
Acquiring property, plant and equipment in exchange for accounts payable $ 117,459 $ 719,921