|
|
|
Principal |
|
|
|
Average |
|
Fair value |
|
Realized gain |
|
Fair value by maturity |
|
||||||||
|
Program |
|
2017 |
|
2016 |
|
per unit |
|
(days) |
|
2017 |
|
2016 |
|
2017 |
|
2018 |
|
2019 |
|
2020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hedging instrument for sales of zinc at a fixed price |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Zinc forward |
|
2,230 |
|
615 |
|
ton |
|
127 |
|
603 |
|
369 |
|
1,288 |
|
589 |
|
14 |
|
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
603 |
|
369 |
|
1,288 |
|
589 |
|
14 |
|
— |
|
|
Hedging instrument for mismatches of quotation periods |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Zinc forward |
|
240,747 |
|
146,515 |
|
ton |
|
23 |
|
(4,304 |
) |
4,471 |
|
(2,183 |
) |
(4,304 |
) |
— |
|
— |
|
|
Silver forward |
|
238 |
|
— |
|
k oz |
|
17 |
|
196 |
|
— |
|
(24 |
) |
196 |
|
— |
|
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(4,108 |
) |
4,471 |
|
(2,207 |
) |
(4,108 |
) |
— |
|
— |
|
|
Hedging instrument for the operating margin of metals |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Zinc forward |
|
— |
|
10,790 |
|
— |
|
— |
|
— |
|
(7,110 |
) |
— |
|
— |
|
— |
|
— |
|
|
US Dollar forward |
|
— |
|
8,039 |
|
— |
|
— |
|
— |
|
1,784 |
|
— |
|
— |
|
— |
|
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
— |
|
(5,326 |
) |
— |
|
— |
|
— |
|
— |
|
|
Hedging instrument for interest rates in US Dollar |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LIBOR floating rate vs. US Dollar fixed rate swaps |
|
31,393 |
|
— |
|
USD |
|
849 |
|
646 |
|
— |
|
(1,200 |
) |
(1,186 |
) |
(1,543 |
) |
3,375 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
646 |
|
— |
|
(1,200 |
) |
(1,186 |
) |
(1,543 |
) |
3,375 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total (assets and liabilities, net) |
|
|
|
|
|
|
|
|
|
(2,859 |
) |
(486 |
) |
(2,119 |
) |
(4,705 |
) |
(1,529 |
) |
3,375 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|