At current prices its probably breaking even or close to it but...

At current prices its probably breaking even or close to it but a couple of key risks though over the next 3-6 months:
1) Lower zinc prices
2) Recovery reduction as they bring on additional volumes (as happened in the past)
3) Wet/Cyclone season resulting in production disruptions
4) Operational cost cutting - during periods with tight cashflow preventative maintenance usually gets cut. Creates additional risk
5) Delays/non-performance from customers - in oversupplied markets the buyers have significant negotiating power. If a smelter has operational issues, have purchased too much etc they can easily push back on NCZ to delay shipments. NCZ has little option but to accept and hold additional stock/lower cashflow. See the lithium market for examples of how this plays out.

Some of these issues can wipe out cashflow and given NCZ has not built up a cash buffer so far can see them back raising capital at short notice.