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Reversal of Impairment (Table)
 12 Months Ended
Dec. 31, 2017
Impairment Reversal [abstract]  
Schedule of Metal Prices Assumptions Used for Impairment Determination

For the year ended December 31, 2017, the Company's impairment testing incorporated the following key assumptions in addition to the increase in the estimated life of the mine:



a)

Weighted average cost of capital



As at December 31, 2017, projected cash flows were discounted using a real after-tax discount rate of 4.1% which represented the estimated weighted average cost of capital.



b)

Metal Price assumptions





 

 

 

 

 

 

 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

Metal Price Assumptions

 

 2018 

 

 

 2019 

 

 

 2020 

 

 

 2021 

 

 

2022 -2025

Silver price ($ per ounce)

$

 17.56 

 

$

 18.44 

 

$

 19.00 

 

$

 19.00 

 

$

 18.40 

Gold price ($ per ounce)

$

 1,300 

 

$

 1,300 

 

$

 1,342 

 

$

 1,325 

 

$

 1,325 

Lead price ($ per tonne)

$

 2,469 

 

$

 2,403 

 

$

 2,315 

 

$

 2,205 

 

$

 2,205 

Zinc price ($ per tonne)

$

 3,175 

 

$

 3,031 

 

$

 2,756 

 

$

 2,756 

 

$

 2,425