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TRADE AND OTHER RECEIVABLES
 12 Months Ended
Dec. 31, 2017
Disclosure of trade and other receivables [Abstract]  
Disclosure of trade and other receivables [text block]
7. Trade and other receivables
As at December 31
(in millions of U.S. dollars)
 
 
2017
2016
Trade and other receivables
 
 
 
 
Trade receivables
 
 
 3.8
 27.4
Sales tax receivable
 
 
 22.7
 11.8
Unsettled provisionally priced concentrate derivatives and copper swap contracts (Note 14)
 (1.9)
 (4.5)
Other
 
 
 2.5
 2.4
Total trade and other receivables
 
 
 27.1
 37.1