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v3.19.1

Gains (losses) from operating activities in the statement of income by function of expenses, included according to their nature (Details 8) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Raw materials and consumables |  | $ (260,863) | $ (227,620) | $ (208,697)
Classes of Employee Benefit Expenses |  |  |  |
Personnel expenses |  | (260,863) | (227,620) | (208,697)
Depreciation and amortization expense |  |  |  |
Depreciation expense |  | 212,582 | 232,275 | 271,128
Amortization expense |  | (160) | (219) | (184)
Operating leases |  | (79,951) | (84,257) | (75,784)
Investment plan expenses |  | 13,384 | 17,180 | 17,697
Contractors |  | (86,313) | (78,920) | (72,112)
Mining concessions |  | (8,168) | (7,802) | (7,313)
Operations transport |  | (64,352) | (69,052) | (59,399)
Freight and product transport costs |  | (43,510) | (55,383) | (64,857)
Purchase of products from third parties |  | 239,781 | 208,147 | 211,928
CORFO rights |  | (182,954) | (46,274) | (41,962)
Export costs |  | 84,816 | 83,057 | 105,307
Other expenses, by nature |  | (38,925) | (14,034) | (4,818)
Other expenses by nature |  | (1,638,557) | (1,549,593) | (1,499,254)
Other expenses by nature [Member] |  |  |  |
Depreciation and amortization expense |  |  |  |
Legal expenses | $ (25,176) | (15,139) |  | (5,737)
Purchase of products from third parties | (208,147) | (239,781) |  | (211,928)
Office Expenses | (15,612) | (17,981) |  | (17,215)
Export costs | (83,057) | (84,816) |  | (105,307)
Representation Expenses | (4,781) | (4,805) |  | (4,022)
Restructuring of joint ventures | (6,000) | 6,000 |  | 0
Plant suspension expenses |  | 0 | $ 0 | (32,061)
Consultant and advisor services | (14,348) | (12,848) |  | (16,474)
Variation in inventory | $ (90,998) | $ 11,600 |  | $ (10,774)

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