v3.26.1
Intangible assets, net (Tables)
12 Months Ended
Dec. 31, 2025
Intangible assets, net  
Schedule of changes in intangible assets

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Patent, intellectual

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property rights and

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  ​ ​ ​

Concession Assets

  ​ ​ ​

Goodwill

  ​ ​ ​

others

  ​ ​ ​

Total

Cost

​

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​

​

​

​

​

​

Balances at January 1, 2025

  ​ ​ ​

5,402,300

​

8,788

​

23,843

​

5,434,931

Acquisitions

​

209,768

​

—

​

2,185

​

211,953

Disposals

 

(193)

 

—

 

(144)

 

(337)

Other

 

46

 

—

 

—

 

46

Write-off

​

(8,619)

​

—

​

—

​

(8,619)

Transfer

 

(11)

 

—

 

11

 

—

Transfer from property plant and equipment

​

218

​

—

​

—

​

218

Translation differences and inflation adjustment

​

(50,838)

​

1,129

​

2,910

​

(46,799)

Balances at December 31, 2025

​

5,552,671

​

9,917

​

28,805

​

5,591,393

Balances at January 1, 2024

​

4,153,428

  ​ ​ ​

9,293

  ​ ​ ​

24,661

  ​ ​ ​

4,187,382

Acquisitions

​

219,322

​

—

​

1,435

​

220,757

Disposals

 

(434)

 

—

 

(484)

 

(918)

Other

 

2,941

 

—

 

—

 

2,941

Transfer

​

(1,245)

 

—

 

—

 

(1,245)

Transfer from property plant and equipment

​

16

​

—

​

—

​

16

Translation differences and inflation adjustment

 

1,028,272

​

(505)

​

(1,769)

​

1,025,998

Balances at December 31, 2024

 

5,402,300

​

8,788

​

23,843

​

5,434,931

Depreciation

 

​

 

​

 

​

 

​

Accumulated at January 1, 2025

 

2,258,994

​

—

​

20,489

​

2,279,483

Depreciation of the year

 

212,862

 

—

 

933

 

213,795

Disposals

​

—

​

—

​

(95)

​

(95)

Write-off

​

(5,235)

​

—

​

—

​

(5,235)

Transfer from property plant and equipment

​

—

​

—

​

—

​

—

Translation differences and inflation adjustment

​

(37,142)

​

—

​

2,607

​

(34,535)

Accumulated at December 31, 2025

​

2,429,479

​

—

​

23,934

​

2,453,413

Accumulated at January 1, 2024

​

1,645,013

 

—

 

21,404

 

1,666,417

Depreciation of the year

 

188,465

 

—

 

822

 

189,287

Disposals

 

(31)

​

—

​

(284)

​

(315)

Transfer from property plant and equipment

​

5

​

—

​

—

​

5

Translation differences and inflation adjustment

 

425,542

​

—

​

(1,453)

​

424,089

Accumulated at December 31, 2024

 

2,258,994

​

—

​

20,489

​

2,279,483

Net balances at December 31, 2025

 

3,123,192

 

9,917

 

4,871

 

3,137,980

Net balances at December 31, 2024

​

3,143,306

 

8,788

 

3,354

 

3,155,448

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