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Other current and non-current non-financial assets | 12 Months Ended
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Dec. 31, 2021
Disclosure of other non-financial assets [Abstract] |
Disclosure of other non-financial assets [Text Block] | Note 16 Other current and non-current non-financial assets As of December 31, 2021, and 2020, the detail of “Other Current and Non-current Assets” is as follows:
Other non-financial assets, current |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  | ThUS$ |  |  | ThUS$ |
Domestic Value Added Tax |  |  | 26,356 |  |  |  | 18,107 |
Foreign Value Added Tax |  |  | 14,395 |  |  |  | 7,785 |
Prepaid mining licenses |  |  | 1,233 |  |  |  | 1,025 |
Prepaid insurance |  |  | 20,443 |  |  |  | 10,307 |
Other prepayments |  |  | 659 |  |  |  | 946 |
Refund of Value Added Tax to exporters |  |  | - |  |  |  | 14,316 |
Other taxes |  |  | 6,030 |  |  |  | 4,499 |
Other assets |  |  | 754 |  |  |  | 414 |
Total |  |  | 69,870 |  |  |  | 57,399 |
Other non-financial assets, non-current |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  | ThUS$ |  |  | ThUS$ |
Exploration and evaluation expenses (1) |  |  | 26,752 |  |  |  | 17,883 |
Guarantee deposits |  |  | 622 |  |  |  | 731 |
Other assets |  |  | 6,113 |  |  |  | 3,428 |
Total |  |  | 33,487 |  |  |  | 22,042 |
| (1) | Reconciliation of changes in assets for exploration and mineral resource evaluation, by type
Movements in assets for the exploration and evaluation of mineral resources as of December 31, 2021, and 2020:
Conciliation |  | As of December 31, 2021 |  |  | As of December 31, 2020 |  |  | As of December 31, 2019 |
|  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |
Opening balance |  |  | 17,883 |  |  |  | 18,654 |  |  |  | 26,189 |
Change in assets for exploration and evaluation of mineral resources |  |  |  |  |  |  |  |  |  |  |  |
Additions |  |  | 8,071 |  |  |  | - |  |  |  | - |
Short term reclassifications |  |  | 83 |  |  |  | (526 | ) |  |  | (1,311 | )
Increase (decrease) due to transfers and other charges |  |  | 715 |  |  |  | (245 | ) |  |  | (6,224 | )
Total changes |  |  | 8,869 |  |  |  | (771 | ) |  |  | (7,535 | )
Total |  |  | 26,752 |  |  |  | 17,883 |  |  |  | 18,654 |
As of the presentation date, no reevaluations of assets for exploration and assessment of mineral resources have been conducted. Mineral resource exploration and evaluation expenditure Given the nature of operations of the Company and the type of exploration it undertakes, disbursements for exploration can be found in 4 stages: Execution, economically feasible, not economically feasible and in exploitation: (a) Not economically feasible : Exploration and evaluation disbursements, once finalized and concluded to be not economically feasible, will be charged to profit and loss. As of December 31, 2021, and 2020 there were no disbursements for this concept. (b) Execution: Disbursements for exploration and evaluation under implementation and therefore prior to determination of economic feasibility, are presented as part of property, plant and equipment as constructions in progress.
Explorations in execution |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  | ThUS$ |  |  | ThUS$ |
Chile |  |  | 12,915 |  |  |  | 14,265 |
Total |  |  | 12,915 |  |  |  | 14,265 |
Reconciliation of explorations in execution |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  | ThUS$ |  |  | ThUS$ |
Opening balance |  |  | 14,265 |  |  |  | 18,654 |
Disbursements |  |  | 11,964 |  |  |  | - |
Reclassifications |  |  | (13,314 | ) |  |  | (4,389 | )
Total changes |  |  | (1,350 | ) |  |  | (4,389 | )
Total |  |  | 12,915 |  |  |  | 14,265 |
(c) Economically feasible : Reimbursements for exploration and evaluation whose study concluded that its economic viability is viable are classified in “Other non-financial assets, non-current.”
Economically feasible |  | Type of Exploration |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  |  |  | ThUS$ |  |  | ThUS$ |
Chile (1) |  | Metallic/Non-Metallic |  |  | 18,154 |  |  |  | 10,872 |
Total |  |  |  |  | 18,154 |  |  |  | 10,872 |
(1) The value presented for Chile is as of December 2021 for ThUS 5,622, corresponding to non-metallic exploration and evaluation and ThUS$ 12,367 associated with metallic exploration. In December 2020, the amounts of non-metallic exploration were ThUS$ 6,576 and metallic exploration were ThUS$ 4,296 Economically feasible metallic exploration is classified as advanced exploration.
| F-124 |
Notes to the Consolidated Financial Statements December 31, 2021 |  |
Economically feasible metallic explorations are those classified as advanced exploration.
Economically feasible |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  | ThUS$ |  |  | ThUS$ |
Opening balance |  |  | 10,872 |  |  |  | 10,009 |
Additions |  |  | 8,071 |  |  |  | - |
Reclassifications from Exploration in execution – Chile |  |  | 1,906 |  |  |  | 863 |
Reclassifications to Exploration in Exploitation-Chile |  |  | (2,695 | ) |  |  | - |
Total changes |  |  | 7,282 |  |  |  | 863 |
Total |  |  | 18,154 |  |  |  | 10,872 |
(d) In Exploitation : Caliche exploration disbursements that are found in this area are amortized based on the material exploited, the portion that is expected to be exploited in the following 12 months is presented as “Current Assets” in the “Inventories in process” and the remaining portion is classified as “Other Non-current Non-Financial Assets”.
Short-Term Exploitation rec onciliation |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  | ThUS$ |  |  | ThUS$ |
Opening balance |  |  | 1,318 |  |  |  | 1,367 |
Amortization |  |  | (1,359 | ) |  |  | (1,683 | )
Reclassifications |  |  | 1,276 |  |  |  | 1,634 |
Total changes |  |  | (83 | ) |  |  | (49 | )
Total |  |  | 1,235 |  |  |  | 1,318 |
Long -Term Exploitation conciliation |  | As of December 31, 2021 |  |  | As of December 31, 2020 |
|  | ThUS$ |  |  | ThUS$ |
Opening balance |  |  | 7,011 |  |  |  | 8,645 |
Amortization |  |  | - |  |  |  | - |
Reclassifications |  |  | 1,587 |  |  |  | (1,634 | )
Total changes |  |  | 1,587 |  |  |  | (1,634 | )
Total |  |  | 8,598 |  |  |  | 7,011 |

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