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Inventories
12 Months Ended
Dec. 31, 2022
Text block [abstract]  
Inventories
11.
INVENTORIES
 
   
December 31
 
   
2021
   
2022
 
   
NT$
   
NT$
   
US$ (Note 4)
 
       
Finished goods
  $ 8,454,783     $ 12,628,314     $ 410,944  
Work in process
    7,950,743       8,821,890       287,078  
Raw materials
    46,978,647       61,672,903       2,006,928  
Supplies
    3,339,042       3,344,968       108,850  
Raw materials and supplies in transit
    1,109,766       869,400       28,292  
   
 
 
   
 
 
   
 
 
 
       
    $ 67,832,981     $ 87,337,475     $ 2,842,092  
   
 
 
   
 
 
   
 
 
 
The cost of inventories recognized as operating costs for the years ended December 31, 2020, 2021 and 2022 were NT$398,068,260 thousand, NT$458,345,579 thousand and NT$534,314,001 thousand (US$17,387,374 thousand), respectively, which included write-downs of inventories at NT$1,493,793 thousand, NT$647,946 thousand and NT$2,031,485 thousand (US$66,108 thousand), respectively.