Re - senior metallurgist - company operates on 2 swings probably - 8 days on/ 6 days off with a handover day. this was standard for Century peior to closure in 2016.
Re FX - fall of AUD vs USD. This has a huge impact on profit of company and cannot be overstated. Revenue is based on USD price, where nearly all costs are based on AUD, so any rise in the USD has positive impact on NCZ Bottom line