v3.26.1
Property, Plant and Equipment (Tables)
 6 Months Ended
Jun. 30, 2026
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment

Property, plant and equipment consisted of the following:

 

   June 30,   December 31, 
   2026   2025 
Permit of land use  $413,554   $400,734 
Building   9,603,367    9,305,653 
Plant, machinery and equipment   28,387,142    27,503,334 
Motor vehicle   279,957    271,278 
Office equipment   393,204    400,816 
Total   39,077,224    37,881,815 
Less: accumulated depreciation   (34,857,461)   (33,489,851)
Property, plant and equipment, net  $4,219,763   $4,391,964 
Schedule of Estimated Useful Lives of the Assets

Depreciation is computed on a straight-line basis over the estimated useful lives of the assets as follows:

 

Asset   Life - years 
permit of land use   40 - 70 
Building   20 - 49 
plant, machinery and equipment   5 - 10 
Motor vehicle   5 - 10 
office equipment   3-5