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Intangible Assets, Net
 3 Months Ended
Mar. 31, 2024
Intangible Assets, Net [Abstract]  
Intangible Assets, net
11.Intangible Assets, net

 

Intangible assets as of December 31, 2023 and March 31, 2024 consisted of the followings:

 

   December 31,
2023		   March 31,
2024		 
Computer software at cost  $139,732   $147,765 
Sewage discharge permit   1,715,450    1,686,179 
    1,855,182    1,833,944 
Accumulated amortization   (1,013,822)   (1,113,605)
   $841,360   $720,339 

  

Amortization expenses were $121,754 and $117,845 for the three months ended March 31, 2023 and 2024, respectively.

 

Total future amortization expenses for finite-lived intangible assets as of March 31, 2024 were estimated as follows:

 

Remainder of 2024  $350,236 
2025   314,276 
2026   12,360 
2027   8,096 
2028   7,812 
Thereafter   27,559 
Total  $720,339