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Financial Assets at Fair Value Through Other Comprehensive Income - (FVTOCI) (Tables)
12 Months Ended
Dec. 31, 2024
Text block [abstract]  
Summary of Financial Assets at Fair Value Through Other Comprehensive Income
   
December 31
 
   
2023
   
2024
 
   
NT$
   
NT$
   
US$ (Note 4)
 
Investments in equity instruments at FVTOCI
 
$
620,831
  
 
$
12,933,733
  
 
$
394,441
  
Investments in debt instruments at FVTOCI
 
 
1,042,906
 
 
 
1,025,760
 
 
 
31,283
 
 
 
 
   
 
 
   
 
 
 
 
$
  1,663,737
 
 
$
  13,959,493
 
 
$
  425,724
 
 
 
 
   
 
 
   
 
 
 
Summary of Investments in Equity Instruments at Fair Value Through Other Comprehensive Income
  a.
Investments in equity instruments at FVTOCI
 
   
December 31
 
   
2023
   
2024
 
   
NT$
   
NT$
   
US$ (Note 4)
 
Unquoted ordinary shares
 
$
607,528
 
 
$
  12,846,151
 
 
$
  391,770
 
Taiwan Innovation Board (TIB) quoted ordinary shares
 
 
-
 
 
 
72,774
 
 
 
2,219
 
Unquoted preferred shares
 
 
13,303
  
 
 
14,808
  
 
 
452
  
 
 
 
   
 
 
   
 
 
 
 
$
    620,831
 
 
$
12,933,733
 
 
$
394,441
 
 
 
 
   
 
 
   
 
 
 
Summary of Investments in Debt Instruments at Fair Value Through Other Comprehensive Income
  b.
Investments in debt instruments at FVTOCI
 
   
December 31
 
   
2023
   
2024
 
   
NT$
   
NT$
   
US$ (Note 4)
 
Unsecured cumulative subordinate corporate bonds
 
$
  1,042,906
  
 
$
   1,025,760
  
 
$
   31,283