SNIP..."Arafura’s definitive feasibility study spelt out some robust economics – like a net present value (NPV) of $968m and internal rate of return (IRR) of 17.97 per cent – at a low operating cost of $US23.71/kg.
NPV and IRR are both measures of a project’s expected profitability.
The company noted in the Nolans DFS that every US$5/kg increase in the NdPr price adds A$130 million to the project’s NPV."