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RECLAMATION AND CLOSURE COST OBLIGATIONS (Tables) | 12 Months Ended
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Dec. 31, 2019
RECLAMATION AND CLOSURE COST OBLIGATIONS |
Schedule of reclamation and closure cost obligations | Changes to the reclamation and closure cost obligations are as follows:
|  | Rainy |  | New |  |  |  | Cerro San |  |  |  |
(in millions of U.S. dollars) |  | River |  | Afton |  | Mesquite |  | Pedro |  | Blackwater |  | Total
CHANGES TO RECLAMATION AND CLOSURE COST OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |
Balance - December 31, 2017 |  | 63.4 |  | 11.6 |  | 20.5 |  | 19.2 |  | 9.4 |  | 124.1
Reclamation expenditures |  | (0.3) |  | — |  | — |  | (0.9) |  | — |  | (1.2)
Unwinding of discount |  | 1.5 |  | 0.2 |  | 0.4 |  | 0.1 |  | 0.2 |  | 2.4
Revisions to expected cash flows |  | (6.1) |  | (0.3) |  | (0.9) |  | 1.5 |  | (0.5) |  | (6.3)
Foreign exchange movement |  | (4.9) |  | (0.8) |  | — |  | 0.1 |  | (0.8) |  | (6.4)
Less: amounts reclassified as held for sale and sold |  | — |  | — |  | (20.0) |  | — |  | — |  | (20.0)
Balance - December 31, 2018 |  | 53.6 |  | 10.7 |  | — |  | 20.0 |  | 8.3 |  | 92.6
Less: current portion of closure costs (Note 7) |  | — |  | — |  | — |  | (6.5) |  | — |  | (6.5)
Non-current portion of closure costs |  | 53.6 |  | 10.7 |  | — |  | 13.5 |  | 8.3 |  | 86.1
Balance - December 31, 2018 |  | 53.6 |  | 10.7 |  | — |  | 20.0 |  | 8.3 |  | 92.6
Reclamation expenditures |  | (0.2) |  | — |  | — |  | (8.6) |  | — |  | (8.8)
Unwinding of discount |  | 1.1 |  | 0.2 |  | — |  | 1.2 |  | 0.2 |  | 2.7
Revisions to expected cash flows |  | 9.7 |  | 6.4 |  | — |  | (0.6) |  | 0.5 |  | 16.0
Foreign exchange movement |  | 2.8 |  | 0.7 |  | — |  | 0.6 |  | 0.4 |  | 4.5
Balance - December 31, 2019 |  | 67.0 |  | 18.0 |  | — |  | 12.6 |  | 9.4 |  | 107.0
Less: current portion of closure costs (Note 7) |  | (1.4) |  | — |  | — |  | (10.9) |  | — |  | (12.3)
Non-current portion of closure costs |  | 65.6 |  | 18.0 |  | — |  | 1.7 |  | 9.4 |  | 94.7

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