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Non-Controlling Interests (Tables) | 12 Months Ended
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Dec. 31, 2018
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Summary of Information About Subsidiaries with Non-controlling Interests and Non-controlling Interest Balances | Set out below is information about our subsidiaries with non-controlling interests and the non-controlling interest balances included in equity.
(CAD$ in millions) |  | Principal Place of Business |  |  | Percentage of Ownership Interest and Voting Rights Held by Non-Controlling Interest |  |  | December 31, 2018 |  |  | December 31, 2017 |
Carmen de Andacollo |  |  | Region IV, Chile |  |  |  | 10 | % |  | $ | 32 |  |  | $ | 34 |
Quebrada Blanca (a) |  |  | Region I, Chile |  |  |  | 10 | % |  |  | 10 |  |  |  | 30 |
Elkview Mine Limited Partnership |  |  | British Columbia, Canada |  |  |  | 5 | % |  |  | 59 |  |  |  | 53 |
Compañía Minera Zafranal S.A.C. |  |  | Arequipa Region, Peru |  |  |  | 20 | % |  |  | 33 |  |  |  | 25 |
|  |  |  |  |  |  |  |  |  | $ | 134 |  |  | $ | 142 |
a) | During the year ended December 31, 2018, we acquired an additional 13.5% interest in QBSA (Note 5(a)). The total fair value of the transaction of $175 million was recorded as a reduction of our non-controlling interests by $16 million and equity by $159 million.

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