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Prepaid Expenses
6 Months Ended
Jun. 30, 2023
Prepaid Expenses [Abstract]  
Prepaid Expenses

4. Prepaid Expenses

 

Prepaid expenses consisted of the following:

 

   June 30,
2023
   December 31,
2022
 
Prepaid material purchases  $4,847,080   $2,454,298 
Prepaid insurance   919,870    2,392,978 
Other prepayments   354,088    199,323 
Total prepaid expenses  $6,121,038   $5,046,599