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Intangible assets
 12 Months Ended
Dec. 31, 2024
Intangible assets [Abstract]  
Intangible assets
11
Intangible assets
 
Intangible assets as of December 31, 2024 and 2023, are summarized as follows:
 
   
2024
  
   
Net
balances at
beginning
of year
    
Additions
    
Transfers
and others
    
Amortization
    
Net
balances at
year end
    
Estimated
useful life
(years)
  
Software (c)
  
$
34,588
    
$
-
 
  
$
-
    
$
3,658
    
$
30,930
    
3 and 5
  
Trademark (a)
    
125,528
      
-
       -      
-
      
125,528
    
Indefinite
  
   
$
160,116
    
$
-
    
$
-
    
$
3,658
    
$
156,458
          

   
2023
  
   
Net
balances at
beginning
of year
    
Additions
    
Transfers
and others
    
Amortization
    
Net
balances at
year end
    
Estimated
useful life
(years)
  
Software (c)
  
$
31,925
    
$
5,700
 (b)
 
$
-
    
$
3,037
    
$
34,588
    
3 and 5
  
Trademark (a)
    
125,528
      
-
      
-
      
-
      
125,528
    
Indefinite
  
   
$
157,453
    
$
5,700
    
$
-
    
$
3,037
    
$
160,116
          
 

 (a)
Corresponds to the rights on the Marmex trademark associated with the maritime division segment, specifically the offshore vessels operation. This trademark is subject to annual impairment testing (see Note 12).
 

 (b)
Corresponds to the acquisition of software for environmental impact measurement on August 2, 2023.


(c)
Corresponds mainly to the SAP Hana system upgrade project and the environmental software.
 
The accumulated amortization of intangible assets as of December 31, 2024 and 2023, is $17,117 and $13,459, respectively.

Subsequent expenses to maintain the software and the trademark are recognized in income as incurred.