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Significant contingent liabilities and unrecognized contract commitments
12 Months Ended
Dec. 31, 2021
Text block [abstract]  
Significant contingent liabilities and unrecognized contract commitments
39.
Significant contingent liabilities and unrecognized contract commitments
 
  a)
A letter of guarantee was issued by the financial institutions to the Customs Administration of the Ministry of Finance for making payment of customs-duty deposits when importing. As of December 31, 2020 and 2021, the amounts guaranteed by the financial institutions were NT$99,000 thousand and NT$137,700 thousand, respectively.
 
  b)
Capital expenditures that are contracted for, but not provided for are as follows:
 
    
December 31,
2020
    
December 31,
2021
 
    
NT$000
    
NT$000
 
Property, plant and equipment, net
  
 
2,331,041
 
  
 
2,629,129