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Employee benefits (Tables) | 12 Months Ended
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Dec. 31, 2023
Employee Benefits |
Schedule of provisions for employee benefits |
Classes of benefits and expenses by employee |  | As of December 31, 2023 |  | As of December 31, 2022
|  | ThUS$ |  | ThUS$
Current |  |  |  |
Profit sharing and bonuses |  | — |  |  | 2,270 |
Performance bonus and operational targets |  | 23,946 |  |  | 33,106 |
Total |  | 23,946 |  |  | 35,376 |
Non-current |  |  |  |
Profit sharing and bonuses |  | 18,428 |  |  | 8,973 |
Severance indemnity payments |  | 43,578 |  |  | 34,899 |
Total |  | 62,006 |  |  | 43,872 |
Schedule of post employment benefit obligations |
Reconciliation Changes in the benefit obligation |  | As of December 31, 2023 |  | As of December 31, 2022 |  | As of December 31, 2021
|  | ThUS$ |  | ThUS$ |  | ThUS$
Benefit obligation at the beginning of the year |  | 279 |  |  | 9,550 |  |  | 9,864 |
Current cost of service |  | — |  |  | — |  |  | — |
Interest cost |  | 12 |  |  | 255 |  |  | 240 |
Actuarial loss |  | 180 |  |  | (1,357) |  |  | (135) |
Settlement |  | — |  |  | (7,739) |  |  | — |
Benefits paid |  | (185) |  |  | (430) |  |  | (419) |
Total |  | 286 |  |  | 279 |  |  | 9,550 |
Reconciliation Changes in plan assets |  | As of December 31, 2023 |  | As of December 31, 2022 |  | As of December 31, 2021
|  | ThUS$ |  | ThUS$ |  | ThUS$
Fair value of plan assets at the start of the year |  | 4,982 |  |  | 13,497 |  |  | 12,888 |
Real return (loss) in the plan assets |  | 584 |  |  | (346) |  |  | 1,028 |
Benefits paid |  | (185) |  |  | (430) |  |  | (419) |
Settlement |  | — |  |  | (7,739) |  |  | — |
Fair value of plan assets at the end of the year |  | 5,381 |  |  | 4,982 |  |  | 13,497 |
Non-current-assets |  | 5,095 |  |  | 4,703 |  |  | 3,947 |
Elements not yet recognized as components of the cost of periodic net pensions: |  |  |  |  |  |
Net actuarial income at the beginning of the year |  | 59 |  |  | 1,039 |  |  | 192 |
Settlement |  | — |  |  | (1,627) |  |  | — |
Gain |  | 190 |  |  | 647 |  |  | 847 |
Adjustment to recognize the minimum pension obligation |  | 249 |  |  | 59 |  |  | 1,039 |
Cost of service or benefits received during the year |  | As of December 31, 2023 |  | As of December 31, 2022 |  | As of December 31, 2021
|  | ThUS$ |  | ThUS$ |  | ThUS$
Financial cost |  | 12 |  |  | 255 |  |  | 240 |
Real loss in plan assets |  | (214) |  |  | (363) |  |  | (316) |
Settlement |  | — |  |  | (1,627) |  |  | — |
Net periodic pension expenses |  | (202) |  |  | (1,735) |  |  | (76) |
Schedule of staff severance indemnities | As of December 31, 2023, and 2022, severance indemnities calculated at the actuarial value are as follows:
Staff severance indemnities |  | As of December 31, 2023 |  | As of December 31, 2022 |  | As of December 31, 2021
|  | ThUS$ |  | ThUS$ |  | ThUS$
Opening balance |  | (34,899) |  |  | (27,099) |  |  | (32,199) |
Current cost of service |  | (4,624) |  |  | (4,204) |  |  | (4,978) |
Interest cost |  | (2,236) |  |  | (1,928) |  |  | (1,303) |
Actuarial gain loss |  | (5,947) |  |  | (5,305) |  |  | 3,999 |
Exchange rate difference |  | 769 |  |  | 551 |  |  | 4,971 |
Benefits paid during the year |  | 3,359 |  |  | 3,086 |  |  | 2,411 |
Total |  | (43,578) |  |  | (34,899) |  |  | (27,099) |
Schedule of employee Actuarial assumption rate | The liability recorded for staff severance indemnity is valued at the actuarial value method, using the following actuarial assumptions:
Actuarial assumptions |  | As of December 31, 2023 |  | As of December 31, 2022 |  | As of December 31, 2021 |  | Annual/Years
Mortality rate |  | RV - 2020/CB - 2020 |  | RV - 2014 |  | RV - 2014 |  |
Discount interest rate |  | 5.32% |  | 5.12% |  | 5.67% |  |
Inflation rate |  | 3.00% |  | 3.41% |  | 3.20% |  |
Voluntary retirement rate: |  |  |  |  |  |  |  |
Men |  | 3.82 | % |  | 6.49 | % |  | 6.49 | % |  | Annual
Women |  | 3.82 | % |  | 6.49 | % |  | 6.49 | % |  | Annual
Salary increase |  | 4.01 | % |  | 3.00 | % |  | 3.00 | % |  | Annual
Retirement age: |  |  |  |  |  |  |  |
Men |  | 65 |  | 65 |  | 65 |  | Years
Women |  | 60 |  | 60 |  | 60 |  | Years
Schedule of sensitivity analysis of assumptions | As of December 31, 2023, 2022 and 2021, the Company has conducted a sensitivity analysis of the main assumptions of the actuarial calculation, determining the following:
Sensitivity analysis as of December 31, 2023 |  | Effect + 100 basis points |  | Effect - 100 basis points
|  | ThUS$ |  | ThUS$
Discount rate |  | (2,575) |  |  | 2,898 |
Employee turnover rate |  | (338) |  |  | 378 |
Sensitivity analysis as of December 31, 2022 |  | Effect + 100 basis points |  | Effect - 100 basis points
|  | ThUS$ |  | ThUS$
Discount rate |  | (2,090) |  |  | 2,352 |
Employee turnover rate |  | (274) |  |  | 307 |
Sensitivity analysis as of December 31, 2021 |  | Effect + 100 basis points |  | Effect - 100 basis points
|  | ThUS$ |  | ThUS$
Discount rate |  | (1,614) |  |  | 1,817 |
Employee turnover rate |  | (212) |  |  | 237 |

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