Looking at the share price weakness suggests project finance is now many moons away-the BFS missed the "B"!
If that is the case, cannot see any reason to hold.
Maybe still time to switch to other zinc plays-PEM has a strong quarterly, ZFX is still the leader (PAS you ba$tards!), maybe CBH or LAF-the latter starts production in about 6 months.
Cheers,TAS