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Financial Assets at Fair Value Through Other Comprehensive Income (FVTOCI)
 12 Months Ended
Dec. 31, 2021
Text block [abstract]  
Financial Assets at Fair Value Through Other Comprehensive Income (FVTOCI)
8.
FINANCIAL ASSETS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (FVTOCI)
 
    
December 31
  
    
2020
     
2021
  
    
NT$
     
NT$
     
US$ (Note 4)
  
                      
Investments in equity instruments at FVTOCI
    $ 728,398      $ 943,354      $ 34,007  
Investments in debt instruments at FVTOCI
      1,012,736        1,076,458        38,805  
    
 
 
     
 
 
     
 
 
  
       
     $ 1,741,134      $ 2,019,812      $ 72,812  
    
 
 
     
 
 
     
 
 
  
 
  a.
Investments in equity instruments at FVTOCI
 
    
December 31
  
    
2020
     
2021
  
    
NT$
     
NT$
     
US$ (Note 4)
  
                      
Unquoted ordinary shares
    $ 567,377      $ 820,779      $ 29,588  
Quoted ordinary shares
      —          102,124        3,682  
Unquoted preferred shares
      151,329        11,245        405  
Limited partnership
      9,692        9,206        332  
    
 
 
     
 
 
     
 
 
  
       
     $ 728,398      $ 943,354      $ 34,007  
    
 
 
     
 
 
     
 
 
  
 
  b.
Investments in debt instruments at FVTOCI
 
    
December 31
  
    
2020
     
2021
  
    
NT$
     
NT$
     
US$ (Note 4)
  
                      
Unsecured subordinate corporate bonds
    $ 1,012,736      $ 1,076,458      $ 38,805  
    
 
 
     
 
 
     
 
 
  
The Group purchased 1,000 units of
the abovementioned
perpetual unsecured subordinate corporate bonds with par value of NT$1,000 thousand with annual interest rate at
3.5
% and effective interest rate at 3.2%.