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Prepayments and Other Current Assets
3 Months Ended
Mar. 31, 2023
Prepayments and Other Current Assets [Abstract]  
Prepayments and other current assets

(4) Prepayments and other current assets

 

Prepayments and other current assets consisted of the following as of March 31, 2023 and December 31, 2022:

 

   March 31,   December 31, 
   2023   2022 
Prepaid land lease  $174,629   $172,300 
Prepayment for purchase of materials   3,557,460    12,941,951 
Prepayment for purchase of equipment   
-
    
-
 
Value-added tax recoverable   14,087,543    13,640,868 
Prepaid gas   27,834    27,462 
Others   886,995    424,546 
   $18,734,461   $27,207,127