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Inventories
9 Months Ended
Sep. 30, 2025
Inventories [Abstract]  
Inventories
5.Inventories

 

Inventories as of December 31, 2024 and September 30, 2025 consisted of the following:

 

   December 31,   September 30, 
   2024   2025 
Raw materials  $3,538,167   $7,009,348 
Work in progress   5,034,330    9,057,434 
Finished goods   14,278,530    18,420,960 
   $22,851,027   $34,487,742 

 

During the three months ended September 30, 2024 and 2025, write-downs of obsolete inventories to lower of cost or net realizable value of $1,371,328 and $1,167,549, respectively, were charged to cost of revenues.

 

During the nine months ended September 30, 2024 and 2025, write-downs of obsolete inventories to lower of cost or net realizable value of $3,364,889 and $3,747,287, respectively, were charged to cost of revenues.