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Gains (losses) from operating activities in the statement of income by function of expenses, included according to their nature | 12 Months Ended
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Dec. 31, 2017
Disclosure Of Profit Loss From Operating Activities Explanatory [Abstract] |
Disclosure Of Profit Loss From Operating Activities Explanatory [Text Block] | Note 25 Gains (losses) from operating activities in the statement of income by function of expenses, included according to their nature
25.1 | Revenue
|  | 12/31/2017 |  | 12/31/2016 |  | 12/31/2015 |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |
Products |  |  | 2,151,715 |  |  | 1,933,828 |  |  | 1,721,064 |
Services |  |  | 5,608 |  |  | 5,494 |  |  | 7,268 |
Total |  |  | 2,157,323 |  |  | 1,939,322 |  |  | 1,728,332 |
25.2 | Cost of sales
|  | 12/31/2017 |  | 12/31/2016 |  | 12/31/2015 |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |
Raw material and supplies |  |  | (413,283) |  |  | (335,192) |  |  | (309,103) |
Types of employee benefits expenses |  |  |  |  |  |  |  |  |  |
Personnel expenses |  |  | (172,159) |  |  | (162,335) |  |  | (127,556) |
Depreciation expense |  |  | (232,365) |  |  | (271,239) |  |  | (305,091) |
Amortization expense |  |  | (2,921) |  |  | (3,210) |  |  | (3,469) |
Small deposit amortization expense |  |  | (5,440) |  |  | (9,498) |  |  | (2,287) |
Inventory provision variation |  |  | (14,989) |  |  | (926) |  |  | 2,597 |
Operating leases |  |  | (96,094) |  |  | (90,325) |  |  | (62,599) |
Investment plan expenses |  |  | (13,956) |  |  | (16,624) |  |  | (17,574) |
Maintenance and repair |  |  | (5,306) |  |  | (6,051) |  |  | (3,956) |
Contractors, |  |  | (67,337) |  |  | (62,300) |  |  | (49,862) |
Mining concessions |  |  | (7,802) |  |  | (7,313) |  |  | (12,888) |
Operations transport |  |  | (54,057) |  |  | (45,864) |  |  | (37,809) |
Freight and product transport costs |  |  | (131,729) |  |  | (132,260) |  |  | (96,295) |
Packaging costs |  |  | (2,402) |  |  | (1,712) |  |  | (4,244) |
Purchases from third parties |  |  | (113,898) |  |  | (125,456) |  |  | (120,040) |
Insurance policies |  |  | (11,199) |  |  | (12,110) |  |  | (7,620) |
CORFO right |  |  | (46,274) |  |  | (41,962) |  |  | (23,155) |
Other expenses, by nature |  |  | (3,611) |  |  | (3,908) |  |  | (4,632) |
Total |  |  | (1,394,822) |  |  | (1,328,285) |  |  | (1,185,583) |
25.3 | Other income
|  | 12/31/2017 |  | 12/31/2016 |  | 12/31/2015 |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |
Discounts obtained from suppliers |  |  | 346 |  |  | 771 |  |  | 1,343 |
Indemnities received |  |  | 2,813 |  |  | 205 |  |  | 39 |
Fines charged to suppliers |  |  | 199 |  |  | 358 |  |  | 73 |
Taxes recovered |  |  | 47 |  |  | 26 |  |  | 12 |
Amounts recovered from insurance |  |  | 154 |  |  | 5,636 |  |  | 2,182 |
Overestimate of provisions for third-party obligations |  |  | 587 |  |  | 573 |  |  | 1,039 |
Overestimate of doubtful accounts |  |  | 3 |  |  | 56 |  |  | 115 |
Sale of property, plant and equipment |  |  | 1,278 |  |  | 657 |  |  | 8 |
Sale of materials, spare parts and supplies |  |  | - |  |  | 30 |  |  | 1,358 |
Sale of scrap materials |  |  | - |  |  | 1 |  |  | - |
Options on mining claims |  |  | 2,607 |  |  | 2,577 |  |  | 2,261 |
Interest charged to direct customers |  |  | 317 |  |  | - |  |  | - |
Easements, pipelines and roads |  |  | 4,656 |  |  | 219 |  |  | 1,980 |
Non-conventional renewable energy |  |  | - |  |  | 639 |  |  | 344 |
Reimbursement mining licenses and notary expenses |  |  | 1,197 |  |  | 1,300 |  |  | 1,025 |
Miscellaneous services |  |  | 4 |  |  | - |  |  | 405 |
Shares obtained in junior mining companies |  |  | 2,263 |  |  | 421 |  |  | - |
Reversal of allowance for inventories |  |  | - |  |  | 815 |  |  | - |
Other operating income |  |  | 1,356 |  |  | 918 |  |  | 3,159 |
Total |  |  | 17,827 |  |  | 15,202 |  |  | 15,343 |
25.4 | Administrative expenses
|  | 12/31/2017 |  | 12/31/2016 |  | 12/31/2015 |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |
Employee benefit expenses by nature |  |  |  |  |  |  |  |  |  |
Remuneration and benefits to employees |  |  | (50,684) |  |  | (47,217) |  |  | (44,672) |
Amortization expenses |  |  | (8) |  |  | (6) |  |  | (5) |
Advisoty services |  |  | (804) |  |  | (1,322) |  |  | (744) |
Audit fees |  |  | (1,823) |  |  | (1,768) |  |  | (415) |
Marketing costs |  |  | (1,581) |  |  | (1,338) |  |  | (1,614) |
Rent buildings and facilities |  |  | (878) |  |  | (494) |  |  | (417) |
Advertising expenses |  |  | (54) |  |  | (173) |  |  | (230) |
Other expenses, by nature |  |  | (45,339) |  |  | (36,118) |  |  | (38,733) |
Total |  |  | (101,171) |  |  | (88,436) |  |  | (86,830) |
25.5 | Other expenses by function
|  | 12/31//2017 |  | 12/31/2016 |  | 12/31/2015 |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |
Classes of Employee Benefit Expenses |  |  |  |  |  |  |  |  |  |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |
Depreciation of assets not in use |  |  | (90) |  |  | (111) |  |  | (316) |
Sub total |  |  | (90) |  |  | (111) |  |  | (316) |
Impairment losses (reversals of impairment losses) recognized in profit (loss) for the year |  |  |  |  |  |  |  |  |  |
Impairment of doubtful accounts |  |  | (8,038) |  |  | (7,198) |  |  | (2,981) |
Sub total |  |  | (8,038) |  |  | (7,198) |  |  | (2,981) |
Other expenses, by nature |  |  |  |  |  |  |  |  |  |
Legal expenses |  |  | (4,780) |  |  | (5,737) |  |  | (17,204) |
CORFO right |  |  | (20,396) |  |  | - |  |  | - |
Indemnities paid |  |  | - |  |  | - |  |  | (3,714) |
Plant suspension expenses |  |  | - |  |  | (32,061) |  |  | (57,665) |
VAT and other unrecoverable taxes |  |  | (1,295) |  |  | (1,015) |  |  | (1,146) |
Fines, interest and VAT |  |  | (1,112) |  |  | (1,379) |  |  | (3,953) |
SEC and Department of Justice fines (*) |  |  | - |  |  | (30,488) |  |  | - |
Advisory services |  |  | (75) |  |  | (59) |  |  | (15) |
Investment plan expenses |  |  | (10,006) |  |  | (6,657) |  |  | (16,246) |
Donations not accepted as tax credit |  |  | (5,527) |  |  | (1,692) |  |  | (1,350) |
Provision for inventory of materials, spare parts and supplies |  |  | - |  |  | (815) |  |  |  |
Indemnities paid |  |  | (421) |  |  |  |  |  |  |
Tax on rejected expenses |  |  | - |  |  | - |  |  | (1,653) |
Restructuring of joint ventures |  |  | (6,000) |  |  | - |  |  | - |
Other operating expenses |  |  | (3,898) |  |  | (2,519) |  |  | (172) |
Sub total |  |  | (53,510) |  |  | (82,422) |  |  | (103,118) |
Total |  |  | (61,638) |  |  | (89,731) |  |  | (106,415) |
25.6 | Other income (expenses)
|  | 12/31/2017 |  | 12/31/2016 |  | 12/31/2015 |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |
Adjustment of reversal of provision for staff severance indemnities |  |  | - |  |  | - |  |  | 3,575 |
Adjust previous year application method of participation |  |  | 501 |  |  | (826) |  |  | - |
Sale of investments in associates |  |  | - |  |  | 7,636 |  |  | - |
Provision for staff severance indemnities |  |  | 192 |  |  | (6,300) |  |  | - |
Other gains (losses) |  |  | (150) |  |  | 169 |  |  | 185 |
Total |  |  | 543 |  |  | 679 |  |  | 3,760 |
This table corresponds to the summary required by the Financial Markets Commission (formerly the Chilean Superintendence of Securities and Insurance (SVS)) and considers notes 25.2, 25.4 and 25.5.
25.7 | Summary of expenses by nature
|  | January to December |
|  | 2017 |  | 2016 |  | 2015 |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |
Raw materials and consumables |  |  | (413,283) |  |  | (335,192) |  |  | (309,103) |
Classes of Employee Benefit Expenses |  |  |  |  |  |  |  |  |  |
Personnel expenses |  |  | (222,843) |  |  | (209,552) |  |  | (172,228) |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |
Depreciation expense |  |  | (232,455) |  |  | (271,350) |  |  | (305,407) |
Amortization expense |  |  | (2,929) |  |  | (3,217) |  |  | (3,475) |
Ground study amortization expense |  |  | (5,440) |  |  | (9,498) |  |  | (2,287) |
Inventory provision variation |  |  | (14,989) |  |  | (926) |  |  | 2,597 |
Impairment of doubtful accounts |  |  | (8,038) |  |  | (7,198) |  |  | (2,981) |
Operating leases |  |  | (96,094) |  |  | (90,325) |  |  | (62,599) |
Fines paid |  |  | (1,112) |  |  | (1,379) |  |  | (3,953) |
Fines from SEC and the Justice department |  |  | - |  |  | (30,488) |  |  | - |
Investment plan expenses |  |  | (23,962) |  |  | (23,281) |  |  | (33,820) |
Maintenance and repair |  |  | (5,306) |  |  | (6,051) |  |  | (3,956) |
Plant suspension expenses |  |  | - |  |  | (32,061) |  |  | (57,665) |
Contractors |  |  | (67,337) |  |  | (62,300) |  |  | (49,862) |
Mining concessions |  |  | (7,802) |  |  | (7,313) |  |  | (12,888) |
Operations transport |  |  | (54,057) |  |  | (45,864) |  |  | (37,809) |
Freight and product transport costs |  |  | (131,729) |  |  | (132,260) |  |  | (96,295) |
Packaging costs |  |  | (2,402) |  |  | (1,712) |  |  | (4,244) |
Sales cost of imported goods |  |  | (113,898) |  |  | (125,456) |  |  | (120,040) |
Insurance |  |  | (11,199) |  |  | (12,110) |  |  | (7,620) |
Port costs |  |  | - |  |  | - |  |  | - |
CORFO rights |  |  | (46,274) |  |  | (41,962) |  |  | (23,155) |
Advisory services |  |  | (804) |  |  | (1,322) |  |  | (744) |
Auditors’ fees |  |  | (1,823) |  |  | (1,768) |  |  | (415) |
Marketing costs |  |  | (1,581) |  |  | (1,338) |  |  | (1,614) |
Lease of offices and facilities |  |  | (878) |  |  | (494) |  |  | (417) |
Advertising costs |  |  | (54) |  |  | (173) |  |  | (230) |
Other expenses, by nature |  |  | (91,342) |  |  | (51,862) |  |  | (68,618) |
Other expenses by nature |  |  | (1,557,631) |  |  | (1,506,452) |  |  | 1,378,828 |
25.8 Finance expenses
|  | January to December |
|  | 2017 |  | 2016 |  | 2015 |
|  | THUS$ |  | THUS$ |  | THUS$ |
Interest expense from bank borrowings and overdrafts |  |  | (1,308) |  |  | (854) |  |  | (932) |
Interest expense from bonds |  |  | (49,373) |  |  | (57,409) |  |  | (66,456) |
Interest expense from loans |  |  | (2,002) |  |  | (4,581) |  |  | (6,922) |
Capitalized interest expenses |  |  | 4,382 |  |  | 5,406 |  |  | 4,666 |
Other finance costs |  |  | (1,823) |  |  | (60) |  |  | (209) |
Total |  |  | (50,124) |  |  | (57,498) |  |  | (69,853) |

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