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Derivative instruments (Tables)
12 Months Ended
Dec. 31, 2020
DERIVATIVE INSTRUMENTS  
Schedule of derivative assets and derivative liabilities

As at
December 31
As at
December 31
(in millions of U.S. dollars)20202019
DERIVATIVE LIABILITIES


Unsettled provisionally priced concentrate derivatives, and swap contracts(1)
0.9 (0.2)
Gold price option contracts
 26.4 
Total derivative liabilities0.9 26.2 
1.Unsettled provisionally priced concentrate derivatives are included within trade and other receivables in the statement of financial position
Schedule of realised and unrealised gains (losses) on provisionally priced sales
The following tables summarize the realized and unrealized gains (losses) on provisionally priced sales:

Year ended December 31, 2020
(in millions of U.S. dollars)GoldCopperTotal
GAIN ON THE PROVISIONAL
PRICING OF CONCENTRATE SALES
Realized3.2 6.3 9.5 
Unrealized0.7 8.2 8.9 
Total gain3.9 14.5 18.4 


Year ended December 31, 2019
(in millions of U.S. dollars)GoldCopperTotal
GAIN (LOSS) ON THE PROVISIONAL
PRICING OF CONCENTRATE SALES
Realized2.2 (1.7)0.5 
Unrealized0.5 1.0 1.5 
Total gain (loss)2.7 (0.7)2.0 
Schedule of realised and unrealised gains (losses) on gold and copper swap contracts
The following tables summarize the realized and unrealized gains (losses) on gold and copper swap contracts:

Year ended December 31, 2020
(in millions of U.S. dollars)GoldCopperTotal
(LOSS) GAIN ON SWAP CONTRACTS
Realized(2.0)(2.1)(4.1)
Unrealized(0.8)(9.0)(9.8)
Total (loss) gain(2.8)(11.1)(13.9)

Year ended December 31, 2019
(in millions of U.S. dollars)GoldCopperTotal
(LOSS) GAIN ON SWAP CONTRACTS
Realized(3.2)0.2 (3.0)
Unrealized(0.4)(0.9)(1.3)
Total (loss) gain(3.6)(0.7)(4.3)
Schedule of impact of movements in market commodity prices
The following table summarizes the net exposure to the impact of movements in market commodity prices for provisionally priced sales:

As at December 31As at December 31

20202019
VOLUMES SUBJECT TO FINAL PRICING NET OF OUTSTANDING SWAPS


Gold ounces (000s)1.2 0.9 
Copper pounds (millions)1.6 0.5