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Intangible assets, net
12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Intangible assets, net

13. Intangible assets, net

 

The composition and movement of intangible assets is as follows:

 

          
   Useful  Gross value  Accumulated amortization  Net carrying amount
   Life  At December 31,
   Years  2024  2023  2024  2023  2024  2023
Software  14  US$ 75,810   US$ 58,281   US$ (49,853)  US$ (42,062)  US$ 25,957   US$ 16,219 
           
Balance as of January 1, 2023      US$ 12,725 
  Additions        10,387 
  Amortization        (6,895)
  Exchange differences        2 
Balance as of December 31, 2023        16,219 
  Additions        17,598 
  Amortization        (7,849)
  Exchange differences        (11)
Balance as of December 31, 2024      US$ 25,957 

 

Software amortization expense for the years ended December 31, 2024, 2023 and 2022 was US$7,849, US$6,895 and US$6,696, respectively. These amounts were recognized in depreciation and amortization caption on the consolidated statements of operations.