XML 43 R20.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Property, plant and equipment | 12 Months Ended
--- | ---
Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [abstract] |
Disclosure of detailed information about property, plant and equipment explanatory [Text Block] | Note 14 Property, plant and equipment As of December 31, 2017 and December 31, 2016, the detail of property, plant and equipment is as follows:
| 14.1 | Types of property, plant and equipment
Description of types of property, plant and equipment |  |  | 12/31/2017 ThUS$ |  |  | 12/31/2016 ThUS$ |
Property, plant and equipment, net |  |  |  |  |  |  |
Land |  |  | 32,739 |  |  | 32,702 |
Buildings |  |  | 230,319 |  |  | 237,585 |
Other property, plant and equipment |  |  | 24,862 |  |  | 26,417 |
Transport equipment |  |  | 3,257 |  |  | 3,355 |
Supplies and accessories |  |  | 1,872 |  |  | 1,773 |
Office equipment |  |  | 487 |  |  | 3,642 |
Network and communication equipment |  |  | 1,050 |  |  | 1,686 |
Mining assets |  |  | 16,237 |  |  | 24,643 |
IT equipment |  |  | 3,401 |  |  | 366 |
Energy generating assets |  |  | 7,861 |  |  | 8,191 |
Constructions in progress |  |  | 165,054 |  |  | 170,710 |
Machinery, plant and equipment (1) |  |  | 950,054 |  |  | 1,021,640 |
Total |  |  | 1,437,193 |  |  | 1,532,710 |
Property, plant and equipment, gross |  |  |  |  |  |  |
Land |  |  | 32,739 |  |  | 32,702 |
Buildings |  |  | 610,264 |  |  | 582,082 |
Other property, plant and equipment |  |  | 244,831 |  |  | 253,555 |
Transport equipment |  |  | 11,195 |  |  | 10,819 |
Supplies and accessories |  |  | 19,498 |  |  | 18,259 |
Office equipment |  |  | 11,105 |  |  | 17,731 |
Network and communication equipment |  |  | 7,356 |  |  | 7,522 |
Mining assets |  |  | 129,028 |  |  | 158,514 |
IT equipment |  |  | 27,038 |  |  | 20,316 |
Energy generating assets |  |  | 36,643 |  |  | 34,812 |
Constructions in progress |  |  | 165,054 |  |  | 170,710 |
Machinery, plant and equipment |  |  | 2,938,287 |  |  | 2,833,819 |
Total |  |  | 4,233,038 |  |  | 4,140,841 |
Accumulated depreciation and value impairment of property, plant and equipment, total |  |  |  |  |  |  |
Accumulated depreciation and impairment of buildings |  |  | 379,945 |  |  | 344,497 |
Accumulated depreciation and impairment of other property, plant and equipment |  |  | 219,969 |  |  | 227,138 |
Accumulated depreciation and impairment of transport equipment |  |  | 7,938 |  |  | 7,464 |
Accumulated depreciation and impairment of supplies and accessories |  |  | 17,626 |  |  | 16,486 |
Accumulated depreciation and impairment of office equipment |  |  | 10,618 |  |  | 14,089 |
Accumulated depreciation and impairment of network and communication equipment |  |  | 6,306 |  |  | 5,836 |
Accumulated depreciation and impairment of mining assets |  |  | 112,791 |  |  | 133,871 |
Accumulated depreciation and impairment of IT equipment |  |  | 23,637 |  |  | 19,950 |
Accumulated depreciation and impairment of energy generating assets |  |  | 28,782 |  |  | 26,621 |
Accumulated depreciation and impairment of machinery, plant and equipment |  |  | 1,988,233 |  |  | 1,812,179 |
Total |  |  | 2,795,845 |  |  | 2,608,131 |
(1) The detail of machinery, plant and equipment is as follows:
Description of classes of property, plant and equipment |  |  | 12/31/2017 ThUS$ |  |  | 31/12/2016 ThUS$ |
Property, plant and equipment, net |  |  |  |  |  |  |
Pumps |  |  | 33,614 |  |  | 40,306 |
Conveyor belt |  |  | 24,832 |  |  | 28,307 |
Crystallizer |  |  | 15,519 |  |  | 17,585 |
Plant equipment |  |  | 186,885 |  |  | 208,137 |
Water tanks |  |  | 11,296 |  |  | 10,614 |
Filter |  |  | 18,572 |  |  | 21,484 |
Facilities/electrical equipment |  |  | 105,600 |  |  | 111,876 |
Other machinery, plant and equipment |  |  | 72,812 |  |  | 57,298 |
Piping |  |  | 113,641 |  |  | 124,699 |
Pond |  |  | 275,731 |  |  | 299,956 |
Well |  |  | 46,802 |  |  | 50,647 |
Parts |  |  | 44,750 |  |  | 50,731 |
Total |  |  | 950,054 |  |  | 1,021,640 |
14.2 | Reconciliation of changes in property, plant and equipment by type:
Reconciliation of changes in property, plant and equipment by class as of December 31, 2017 and December 31, 2016:
|  |  |  |  |  | Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reconciliation of changes in property, |  |  |  |  |  | property, |  |  |  |  |  |  |  | Network and |  |  |  |  |  | Energy |  |  |  | Machinery, |  |  |
plant and equipment by class as of |  |  |  |  |  | plant and |  | Transport |  | Supplies and |  | Equipment |  | communication |  |  |  |  |  | generating |  | Assets under |  | plant and |  | Property, plant |
December 31, 2017, gross amount |  | Land |  | Buildings |  | equipment |  | equipment |  | accessories |  | office |  | equipment |  | Mining assets |  | IT equipment |  | assets |  | construction |  | equipment |  | and equipment |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Opening balance |  | 32,702 |  | 582,082 |  | 253,555 |  | 10,819 |  | 18,259 |  | 17,731 |  | 7,522 |  | 158,514 |  | 20,316 |  | 34,812 |  | 170,710 |  | 2,833,819 |  | 4,140,841 |
Changes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additions |  | - |  | 189 |  | 541 |  | - |  | 115 |  | 42 |  | 12 |  | - |  | 899 |  | 122 |  | 158,797 |  | 26,067 |  | 186,784 |
Disposals |  | - |  | (59) |  | (11,623) |  | (321) |  | - |  | (23) |  | - |  | (30,082) |  | (57) |  | - |  | (16,761) |  | (3,374) |  | (62,300) |
Increase (decrease) in foreign currency translation difference |  | 45 |  | 103 |  | 3 |  | 1 |  | - |  | - |  | - |  | - |  | (2) |  | - |  | 1 |  | 118 |  | 269 |
Reclassifications |  | - |  | 23,336 |  | 8,255 |  | 696 |  | 1,044 |  | 172 |  | 123 |  | 596 |  | 122 |  | 1,709 |  | (120,668) |  | 84,424 |  | (191) |
Other increases (decreases) (*) |  | 403 |  | 4,669 |  | (5,900) |  | - |  | 80 |  | (6,817) |  | (301) |  | - |  | 5,760 |  | - |  | (27,025) |  | (2,767) |  | (31,898) |
Decreases for classification as held for sale (1) |  | (411) |  | (56) |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | (467) |
Total changes |  | 37 |  | 28,182 |  | (8,724) |  | 376 |  | 1,239 |  | (6,626) |  | (166) |  | (29,486) |  | 6,722 |  | 1,831 |  | (5,656) |  | 104,468 |  | 92,197 |
Closing balance |  | 32,739 |  | 610,264 |  | 244,831 |  | 11,195 |  | 19,498 |  | 11,105 |  | 7,356 |  | 129,028 |  | 27,038 |  | 36,643 |  | 165,054 |  | 2,938,287 |  | 4,233,038 |
|  |  |  |  |  | Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment by class as of December 31, 2017, accumulated depreciation |  | Land |  | Buildings |  | property, plant and equipment |  | Transport equipment |  | Supplies and accessories |  | Equipment office |  | Network and communication equipment |  | Mining assets |  | IT equipment |  | Energy generating assets |  | Assets under construction |  | Machinery, plant and equipment |  | Property, plant and equipment |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Opening balance |  | - |  | (344,497) |  | (227,138) |  | (7,464) |  | (16,486) |  | (14,089) |  | (5,836) |  | (133,871) |  | (19,950) |  | (26,621) |  | - |  | (1,812,179) |  | (2,608,131) |
Changes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposals |  | - |  | 58 |  | 11,622 |  | 312 |  | - |  | 3 |  | - |  | 30,083 |  | 25 |  | - |  | - |  | 3,210 |  | 45,313 |
Depreciation expense |  | - |  | (33,306) |  | (6,759) |  | (730) |  | (1,047) |  | (357) |  | (665) |  | (10,638) |  | (909) |  | (2,184) |  | - |  | (175,770) |  | (232,365) |
Impairment |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |
Increase (decrease) in foreign currency translation difference |  | - |  | (35) |  | (3) |  | (2) |  | - |  | - |  | - |  | - |  | (11) |  | - |  | - |  | (58) |  | (109) |
Reclassifications |  | - |  | (62) |  | 38 |  | (32) |  | (110) |  | (69) |  | (25) |  | - |  | (46) |  | 26 |  | - |  | 344 |  | 64 |
Other increases (decreases) (*) |  | - |  | (2,102) |  | 2,271 |  | (22) |  | 17 |  | 3,894 |  | 220 |  | 1,635 |  | (2,746) |  | (3) |  | - |  | (3,780) |  | (616) |
Decreases for classification as held for sale (1) |  | - |  | (1) |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | (1) |
Total changes |  | - |  | (35,448) |  | 7,169 |  | (474) |  | (1,140) |  | 3,471 |  | (470) |  | 21,080 |  | (3,687) |  | (2,161) |  | - |  | (176,054) |  | (187,714) |
Closing balance |  | - |  | (379,945) |  | (219,969) |  | (7,938) |  | (17,626) |  | (10,618) |  | (6,306) |  | (112,791) |  | (23,637) |  | (28,782) |  | - |  | (1,988,233) |  | (2,795,845) |
Reconciliation of changes in property, plant and equipment by class as of December 31, 2017, net amount |  | Land |  | Buildings |  | Other property, plant and equipment |  | Transport equipment |  | Supplies and accessories |  | Equipment office |  | Network and communication equipment |  | Mining assets |  | IT equipment |  | Energy generating assets |  | Assets under construction |  | Machinery, plant and equipment |  | Property, plant and equipment |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Opening balance |  | 32,702 |  | 237,585 |  | 26,417 |  | 3,355 |  | 1,773 |  | 3,642 |  | 1,686 |  | 24,643 |  | 366 |  | 8,191 |  | 170,710 |  | 1,021,640 |  | 1,532,710 |
Changes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additions |  | - |  | 189 |  | 541 |  | - |  | 115 |  | 42 |  | 12 |  | - |  | 899 |  | 122 |  | 158,797 |  | 26,067 |  | 186,784 |
Disposals |  | - |  | (1) |  | (1) |  | (9) |  | - |  | (20) |  | - |  | 1 |  | (32) |  | - |  | (16,761) |  | (164) |  | (16,987) |
Depreciation expense |  | - |  | (33,306) |  | (6,759) |  | (730) |  | (1,047) |  | (357) |  | (665) |  | (10,638) |  | (909) |  | (2,184) |  | - |  | (175,770) |  | (232,365) |
Impairment |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |
Increase (decrease) in foreign currency translation difference |  | 45 |  | 68 |  | - |  | (1) |  | - |  | - |  | - |  | - |  | (13) |  | - |  | 1 |  | 60 |  | 160 |
Reclassifications |  | - |  | 23,274 |  | 8,293 |  | 664 |  | 934 |  | 103 |  | 98 |  | 596 |  | 76 |  | 1,735 |  | (120,668) |  | 84,768 |  | (127) |
Other increases (decreases) (*) |  | 403 |  | 2,566 |  | (3,629) |  | (22) |  | 97 |  | (2,923) |  | (81) |  | 1,635 |  | 3,014 |  | (3) |  | (27,025) |  | (6,547) |  | (32,515) |
Decreases for classification as held for sale (1) |  | (411) |  | (56) |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | (467) |
Total changes |  | 37 |  | (7,266) |  | (1,555) |  | (98) |  | 99 |  | (3,155) |  | (636) |  | (8,406) |  | 3,035 |  | (330) |  | (5,656) |  | (71,586) |  | (95,517) |
Closing balance |  | 32,739 |  | 230,319 |  | 24,862 |  | 3,257 |  | 1,872 |  | 487 |  | 1,050 |  | 16,237 |  | 3,401 |  | 7,861 |  | 165,054 |  | 950,054 |  | 1,437,193 |
(*) The net balance of other increases (decreases) corresponds to all those items that are reclassified to or from property, plant and equipment. They can have the following origin:1) work in progress which is expensed to profit or loss, forming part of operating costs or other expenses per function, as appropriate, 2) the variation representing the purchase and use of materials and spare parts, 3) projects corresponding mainly to exploration expenditures and ground studies that are reclassified to the item other non-current financial assets, 4) assets for retirement obligations and 5) software that is reclassified to Intangibles. (1) Any property, plant and equipment (disposal group) that, at the closing date of the financial statements, is subject to a commitment for sale or where the sales process has been initiated and where the sale is expected to occur within twelve months of that date, is classified by the Company as non-current assets held for sale. These assets or disposal groups are valued at the lower of carrying amount or the estimated sales value less the costs to sell and stop being amortized from the moment they are classified as non-current assets held for sale.
Reconciliation of changes in property, plant and equipment by class as of December 31, 2016, gross amount |  | Land |  | Buildings |  | Other property, plant and equipment |  | Transport equipment |  | Supplies and accessories |  | Equipment office |  | Network and communication equipment |  | Mining assets |  | IT equipment |  | Energy generating assets |  | Assets under construction |  | Machinery, plant and equipment |  | Property, plant and equipment |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Opening balance |  | 34,589 |  | 564,708 |  | 248,493 |  | 16,170 |  | 17,877 |  | 18,858 |  | 7,323 |  | 157,481 |  | 19,732 |  | 34,579 |  | 151,831 |  | 2,751,631 |  | 4,023,272 |
Changes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additions |  | - |  | - |  | 545 |  | 49 |  | - |  | 753 |  | - |  | - |  | - |  | - |  | 145,605 |  | 2,146 |  | 149,098 |
Disposals |  | - |  | - |  | (753) |  | (5,540) |  | (28) |  | (1) |  | - |  | - |  | - |  | - |  | (3,370) |  | (1,165) |  | (10,857) |
Increase (decrease) in foreign currency translation difference |  | 28 |  | 1 |  | 65 |  | 8 |  | - |  | 52 |  | - |  | - |  | - |  | - |  | - |  | 19 |  | 173 |
Reclassifications |  | - |  | 17,373 |  | 5,809 |  | 277 |  | 410 |  | 51 |  | 199 |  | 1,033 |  | 584 |  | 233 |  | (101,104) |  | 80,987 |  | 5,852 |
Other increases (decreases) (*) |  | (24) |  | - |  | (410) |  | (145) |  | - |  | (1,982) |  | - |  | - |  | - |  | - |  | (22,252) |  | 201 |  | (24,612) |
Decreases for classification as held for sale (1) |  | (1.891) |  | - |  | (194) |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | (2,085) |
Total changes |  | (1,887) |  | 17,374 |  | 5,062 |  | (5,351) |  | 382 |  | (1,127) |  | 199 |  | 1,033 |  | 584 |  | 233 |  | 18,879 |  | 82,188 |  | 117,569 |
Closing balance |  | 32,702 |  | 582,082 |  | 253,555 |  | 10,819 |  | 18,259 |  | 17,731 |  | 7,522 |  | 158,514 |  | 20,316 |  | 34,812 |  | 170,710 |  | 2,833,819 |  | 4,140,841 |
Reconciliation of changes in property, plant and equipment by class as of December 31, 2016, accumulated depreciation |  | Land |  | Buildings |  | Other property, plant and equipment |  | Transport equipment |  | Supplies and accessories |  | Equipment office |  | Network and communication equipment |  | Mining assets |  | IT equipment |  | Energy generating assets |  | Assets under construction |  | Machinery, plant and equipment |  | Property, plant and equipment |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Opening balance |  | - |  | (310,676) |  | (196,262) |  | (12,355) |  | (13,870) |  | (15,393) |  | (5,041) |  | (122,034) |  | (18,770) |  | (23,332) |  | - |  | (1,621,963) |  | (2,339,696) |
Changes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposals |  | - |  | - |  | - |  | 5,540 |  | 28 |  | - |  | - |  | - |  | - |  | - |  | - |  | 759 |  | 6,327 |
Depreciation expense |  | - |  | (33,470) |  | (7,288) |  | (683) |  | (2,265) |  | (845) |  | (774) |  | (11,837) |  | (1,179) |  | (2,374) |  | - |  | (178,942) |  | (239,657) |
Impairment |  | - |  | (338) |  | (23,861) |  | (81) |  | (379) |  | (1) |  | (21) |  | - |  | (1) |  | (915) |  | - |  | (5,985) |  | (31,582) |
Increase (decrease) in foreign currency translation difference |  | - |  | (13) |  | (14) |  | (14) |  | - |  | (28) |  | - |  | - |  | - |  | - |  | - |  | - |  | (69) |
Reclassifications |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | (5,852) |  | (5,852) |
Other increases (decreases) (*) |  | - |  | - |  | 258 |  | 129 |  | - |  | 2,178 |  | - |  | - |  | - |  | - |  | - |  | (196) |  | 2,369 |
Decreases for classification as held for sale (1) |  | - |  | - |  | 29 |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | 29 |
Total changes |  | - |  | (33,821) |  | (30,876) |  | 4,891 |  | (2,616) |  | 1,304 |  | (795) |  | (11,837) |  | (1,180) |  | (3,289) |  | - |  | (190,216) |  | (268,435) |
Closing balance |  | - |  | (344,497) |  | (227,138) |  | (7,464) |  | (16,486) |  | (14,089) |  | (5,836) |  | (133,871) |  | (19,950) |  | (26,621) |  | - |  | (1,812,179) |  | (2,608,131) |
Reconciliation of changes in property, plant and equipment by class as of December 31, 2016, net amount |  | Land |  | Buildings |  | Other property, plant and equipment |  | Transport equipment |  | Supplies and accessories |  | Equipment office |  | Network and communication equipment |  | Mining assets |  | IT equipment |  | Energy generating assets |  | Assets under construction |  | Machinery, plant and equipment |  | Property, plant and equipment |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Opening balance |  | 34,589 |  | 254,032 |  | 52,231 |  | 3,815 |  | 4,007 |  | 3,465 |  | 2,282 |  | 35,447 |  | 962 |  | 11,247 |  | 151,831 |  | 1,129,668 |  | 1,683,576 |
Changes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additions |  | - |  | - |  | 545 |  | 49 |  | - |  | 753 |  | - |  | - |  | - |  | - |  | 145,605 |  | 2,146 |  | 149,098 |
Disposals |  | - |  | - |  | (753) |  | - |  | - |  | (1) |  | - |  | - |  | - |  | - |  | (3,370) |  | (406) |  | (4,530) |
Depreciation expense |  | - |  | (33,470) |  | (7,288) |  | (683) |  | (2,265) |  | (845) |  | (774) |  | (11,837) |  | (1,179) |  | (2,374) |  | - |  | (178,942) |  | (239,657) |
Impairment |  | - |  | (338) |  | (23,861) |  | (81) |  | (379) |  | (1) |  | (21) |  | - |  | (1) |  | (915) |  | - |  | (5,985) |  | (31,582) |
Increase (decrease) in foreign currency translation difference |  | 28 |  | (12) |  | 51 |  | (6) |  | - |  | 24 |  | - |  | - |  | - |  | - |  | - |  | 19 |  | 104 |
Reclassifications |  | - |  | 17,373 |  | 5,809 |  | 277 |  | 410 |  | 51 |  | 199 |  | 1,033 |  | 584 |  | 233 |  | (101,104) |  | 75,135 |  | - |
Other increases (decreases) (*) |  | (24) |  | - |  | (152) |  | (16) |  | - |  | 196 |  | - |  | - |  | - |  | - |  | (22,252) |  | 5 |  | (22,243) |
Disminuciones por clasificar como mantenidos para la venta (1) |  | (1.891) |  | - |  | (165) |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | - |  | (2.056) |
Total changes |  | (1,887) |  | (16,447) |  | (25,814) |  | (460) |  | (2,234) |  | 177 |  | (596) |  | (10,804) |  | (596) |  | (3,056) |  | 18,879 |  | (108,028) |  | (150,866) |
Closing balance |  | 32,702 |  | 237,585 |  | 26,417 |  | 3,355 |  | 1,773 |  | 3,642 |  | 1,686 |  | 24,643 |  | 366 |  | 8,191 |  | 170,710 |  | 1,021,640 |  | 1,532,710 |
(*) The net balance of other increases (decreases) corresponds to all those items that are reclassified to or from property, plant and equipment. They can have the following origin:1) work in progress which are expensed to profit or loss, forming part of operating costs or other expenses per function, as appropriate, 2) the variation representing the purchase and use of materials and spare parts, 3) projects corresponding mainly to exploration expenditures and ground studies that are reclassified to the item other non-current financial assets, 4) Software that is reclassified to Intangibles.
14.3 | Detail of property, plant and equipment pledged as guarantee
There are no restrictions in title or guarantees for compliance with obligations that affect property, plant and equipment.
14.4 | Impairment of assets
As indicated in Note 3.28 to the financial statements, the recoverable amount of property, plant and equipment is measured provided that there is an indication that the asset could be impaired. As of December 31, 2017, there were no impairment adjustments and as of December 31, 2016 there were impairment adjustments associated with the closure of railway facilities for the transportation of products. Railway for transportation of products from the Coya Sur location and the Port of Tocopilla As a result of the rain storms that affected the Tocopilla Zone at the beginning of August 2015, SQM S.A. confirmed damages to several sections of the railway between the Coya Sur and Tocopilla sites. As of that date, the Company has used trucks to replace rail transportation. SQM has carried out several internal and external studies with the purpose of determining what would be necessary to repair the damage to the railway. These reports revealed that repairing the damage would entail high long-term costs, and it is therefore not convenient to repair the railway in the short- to medium-term. This decision does not affect the production process or imply additional employee reductions. Consequently, SQM has adjusted the value of the assets associated with the railway (fixed equipment, facilities and rolling stock), which has translated into a charge of approximately US$32 million, which is reflected in the line other expenses by function in the consolidated statement of income for the period. This amount represents around 0.8% of SQM’s total assets and 11% of revenue reported at the end of December 2016.
14.5 | Additional information
Interest capitalized in construction-in-progress: The amount capitalized for this concept amounted to ThUS$4,382 as of December 31, 2017 and ThUS$ 5,406 as of December 31, 2016. Financing costs are not capitalized for periods which exceed the normal term of acquisition, construction or installation of the asset, such as occur with delays, interruptions or a temporary suspension of the project due to technical, financial or other issues, which prevent the asset from being maintained in good condition for its use. Assets held for sale The non-current assets held for sale and the components of the disposal groups classified as held for sale are presented in the Consolidated Statement of Financial Position as a line for the following concept: “Non-current assets or groups of assets classified as held for sale”. The following table shows the main classes of non-current assets held for sale:
Assets held for sale |  |  | 12/31/2017 |  |  | 12/31/2016 |
|  |  | ThUS$ |  |  | ThUS$ |
Land |  |  | 1,480 |  |  | 1,891 |
Facilities and fixtures |  |  | 109 |  |  | 165 |
Total |  |  | 1,589 |  |  | 2,056 |

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sqm_DisclosureofdetailedinformationaboutpropertyplantandequipmentexplanatoryTextBlock
Namespace Prefix: | sqm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration