Exhibit 15.1

Ratios

Liquid financial assets to total assets

 


 At December 31,

Thousands of U.S. dollars

2025

2024

2023

Cash and cash equivalents

572,647

675,256

1,637,821

Other current investments

2,306,760

2,372,999

1,969,631

Non-current investments

750,957

998,251

398,220

Liquid financial assets

3,630,364

4,046,506

4,005,672

Total assets

20,072,313

20,450,125

21,081,895

Ratio

0.18

0.20

0.19

 

Total liabilities to total assets ratio

 

 At December 31,

Thousands of U.S. dollars

2025

2024

2023

Total liabilities

3,243,245

3,636,290

4,051,458

Total assets

20,072,313

20,450,125

21,081,895

Ratio

0.16

0.18

0.19

 

Current borrowings to total borrowings


 At December 31,

Thousands of U.S. dollars

2025

2024

2023

Current borrowings

305,354

425,999

535,133

Total borrowings

305,722

437,398

583,437

Ratio

1.00

0.97

0.92