I've done some rough Ammaroo NPV calculations using info from the feasibility study. Given VRM used US$84 per tonne in their FS pricing example (page 11 of announcement), phosrock prices @ US$102.50 are up 22%. Using the NPV sensitivities chart (page 6) this could/should add $321mil to Ammaroo's NPV. The current weak A$, down more than 5%, adds at least another $78mil to the NPV.
Bottom line is VRM has a current market cap under $14.5mil , less KLPP implied value of $4.5mil means Ammaroo is valued at less than $10mil for an NPV of over $700mil.