Ann: CRB SIGNS BINDING PYRITE OFFTAKE AGREEMENT FOR MOUNT MORGAN, page-4

In the Feasibility Study (ASX: 8 December 2016), the payback was determined using a AUD/USD FX 0.75, and with commodity prices of US$1,200/oz gold, US$60/t unroasted iron pyrite for years 1 & 2 then US$80/t for the remaining years and US$5,800/t copper. Copper revenue is based on copper LME price for approximately 25% copper grade plus A$ 500/t premium for copper sulphate

Gold price higher, aud higher, pyrite only slightly lower copper now higher... washes out to be still broadly on track with the early economics to my eye, ie, wildly profitable