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Inventories
 12 Months Ended
Dec. 31, 2024
Text block [abstract]  
Inventories
11.
INVENTORIES
 
   
December 31
  
   
2023

(Retrospectively

Adjusted)
    
2024
  
   
NT$
    
NT$
    
US$ (Note 4)
  
Finished goods
  
$
9,942,163
 
  
$
11,567,645
 
  
$
352,780
 
Work in process
  
 
5,976,497
 
  
 
6,374,902
 
  
 
194,416
 
Raw materials
  
 
39,600,020
  
  
 
34,600,519
  
  
 
1,055,215
  
Supplies
  
 
3,106,039
 
  
 
3,544,043
 
  
 
108,083
 
Raw materials and supplies in transit
  
 
1,033,635
 
  
 
1,226,829
 
  
 
37,415
 
 
 
 
    
 
 
    
 
 
  
 
$
       59,658,354
 
  
$
 57,313,938
 
  
$
 1,747,909
 
 
 
 
    
 
 
    
 
 
  
The cost of inventories recognized as operating costs for the years ended December 31, 2022, 2023 and 2024 were NT$534,314,001 thousand, NT$488,429,585 thousand and NT$496,631,340 thousand (US$15,145,817 thousand), respectively, which included write-downs of inventories at NT$2,031,485 thousand, NT$3,389,936 thousand and NT$469,876 thousand (US$14,330 thousand), respectively.