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Gains (losses) from operating activities in the statement of income of expenses, included according to their nature - Summary of Expenses by Nature (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Statement [Line Items] |  |  |
Depreciation of right-of-use assets | $ (9,206) | $ (8,706) |
Impairment of properties, plant and equipment, intangible and Goodwill | (34,149) |  |
Operational leases | (1,226) | (1,587) | $ (1,133)
Expenses related to variable lease payments (contracts under IFRS 16) | (3,631) | (1,313) | (1,117)
Total expenses by nature | (5,192,568) | (1,951,706) | (1,540,950)
Other expenses by nature |  |  |
Statement [Line Items] |  |  |
Raw materials and consumables | (561,709) | (345,356) | (287,877)
Employee benefit expenses | (372,457) | (272,323) | (234,108)
Depreciation expense | (218,714) | (195,678) | (182,452)
Depreciation of right-of-use assets | (9,205) | (8,706) | (8,431)
Impairment of properties, plant and equipment, intangible and Goodwill | (42,233) | (6,060) | (11,644)
Amortization expense | (16,539) | (9,855) | (13,029)
Legal expenses | (6,841) | (42,254) | (69,965)
Investment plan expenses | (19,020) | (15,058) | (15,054)
Exploration expenses | 0 | (284) | (5,262)
Provision for materials, spare parts and supplies | (7,099) | (505) | 640
Contractors | (201,579) | (162,677) | (147,096)
Operational leases | (75,249) | (70,584) | (60,572)
Mining concessions | (14,585) | (7,325) | (6,645)
Operational transportation | (91,130) | (76,004) | (68,730)
Freight and product transport costs | (94,727) | (77,353) | (52,156)
Purchase of products from third parties | 473,742 | 329,464 | 260,089
CORFO rights y other agreements | (3,272,897) | (247,604) | (74,418)
Export costs | 153,162 | 99,212 | 88,176
Expenses related to variable lease payments (contracts under IFRS 16) | (3,631) | (1,313) | (1,117)
Insurance | (46,334) | (25,770) | (21,135)
Consultant and advisor services | (27,235) | (17,332) | (13,880)
Variation in gross inventory | (631,156) | (85,709) | (102,446)
Variation in inventory provision | 27,324 | (5,038) | (7,244)
Other expenses | $ (88,312) | $ (31,736) | $ (29,444)

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- Definition The amount of amortisation expense. Amortisation is the systematic allocation of depreciable amounts of intangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of depreciation expense. Depreciation is the systematic allocation of depreciable amounts of tangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2022-03-24 -Paragraph 24 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2022-en-r&anchor=para_24_b&doctype=Standard -URIDate 2022-03-24 + Details
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