RE:One way to look at it
as long as:
that zinc maintain a price of 1.15 / 1.25 (US $ /)
stocks stay or fall a bit
concentrates remain in deficit
they do not perform any more impairment
they can an effect impairment reversal
The TCs now are between 75/90 (US $ /), but they will no longer be annualized, they will be updated in shorter periods, during this year.