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Accounts payable
12 Months Ended
Dec. 31, 2021
Disclosure Of Detailed Information Of Trade And Other Payable Explanatory [Abstract]  
Accounts payable
 
16.
Accounts payable
 
    
December 31,

2020
    
December 31,

2021
 
    
NT$000
    
NT$000
 
Accounts payable
     766,805        765,403  
Estimated accounts payable
     200,016        246,988  
    
 
 
    
 
 
 
    
 
966,821
 
  
 
1,012,391