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PROPERTY, PLANT AND MINE DEVELOPMENT | 12 Months Ended
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Dec. 31, 2017
PROPERTY, PLANT AND MINE DEVELOPMENT |
PROPERTY, PLANT AND MINE DEVELOPMENT | 10. PROPERTY, PLANT AND MINE DEVELOPMENT
|  |  | Mining Properties |  |  | Plant and Equipment |  |  | Mine Development Costs |  |  | Total |  |
As at December 31, 2015 |  | $ | 1,665,610 |  | $ | 2,064,406 |  | $ | 1,358,951 |  | $ | 5,088,967 |  |
Additions |  |  | 53,072 |  |  | 244,018 |  |  | 279,119 |  |  | 576,209 |  |
Gain on impairment reversal |  |  | 83,992 |  |  | 36,169 |  |  | – |  |  | 120,161 |  |
Disposals |  |  | (1,890 | ) |  | (17,658 | ) |  | – |  |  | (19,548 | ) |
Amortization |  |  | (207,383 | ) |  | (342,208 | ) |  | (110,162 | ) |  | (659,753 | ) |
Transfers between categories |  |  | 12,135 |  |  | 39,556 |  |  | (51,691 | ) |  | – |  |
As at December 31, 2016 |  |  | 1,605,536 |  |  | 2,024,283 |  |  | 1,476,217 |  |  | 5,106,036 |  |
Additions |  |  | 174,374 |  |  | 221,924 |  |  | 648,242 |  |  | 1,044,540 |  |
Disposals |  |  | (6,750 | ) |  | (9,354 | ) |  | – |  |  | (16,104 | ) |
Amortization |  |  | (127,579 | ) |  | (276,493 | ) |  | (103,848 | ) |  | (507,920 | ) |
Transfers between categories |  |  | 19,946 |  |  | 30,761 |  |  | (50,707 | ) |  | – |  |
As at December 31, 2017 |  | $ | 1,665,527 |  | $ | 1,991,121 |  | $ | 1,969,904 |  | $ | 5,626,552 |  |
As at December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 2,593,659 |  | $ | 4,233,945 |  | $ | 2,050,980 |  | $ | 8,878,584 |  |
Accumulated amortization and net impairments |  |  | (988,123 | ) |  | (2,209,662 | ) |  | (574,763 | ) |  | (3,772,548 | ) |
Carrying value – December 31, 2016 |  | $ | 1,605,536 |  | $ | 2,024,283 |  | $ | 1,476,217 |  | $ | 5,106,036 |  |
As at December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 2,782,732 |  | $ | 4,602,106 |  | $ | 2,648,514 |  | $ | 10,033,352 |  |
Accumulated amortization and net impairments |  |  | (1,117,205 | ) |  | (2,610,985 | ) |  | (678,610 | ) |  | (4,406,800 | ) |
Carrying value – December 31, 2017 |  | $ | 1,665,527 |  | $ | 1,991,121 |  | $ | 1,969,904 |  | $ | 5,626,552 |  |
As at December 31, 2017, assets under construction, and therefore not yet being depreciated, included in the carrying value of property, plant and mine development amounted to $910.6 million (2016 – $532.3 million). During the year ended December 31, 2017, the Company disposed of property, plant and mine development with a carrying value of $16.1 million (2016 – $19.5 million). The loss on disposal was recorded in the other (income) expenses line item in the consolidated statements of income and comprehensive income. Geographic Information:
|  |  | As at December 31, 2017 |  |  | As at December 31, 2016 |
Northern Business: |  |  |  |  |  |  |
Canada |  | $ | 3,730,809 |  | $ | 3,266,594 |
Finland |  |  | 889,610 |  |  | 853,445 |
Sweden |  |  | 13,812 |  |  | 13,812 |
Southern Business: |  |  |  |  |  |  |
Mexico |  |  | 982,115 |  |  | 961,943 |
United States |  |  | 10,206 |  |  | 10,242 |
Total property, plant and mine development |  | $ | 5,626,552 |  | $ | 5,106,036 |

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