Why would NCM hide the results, page-18

That was the question I asked earlier Dazed...the earliest drills by Exco reportedly uranium as the main mineral at shallow depths ...50 - 80m.
Since then all reports have been of IOCG, not IOCGU as at Olympic Dam and the like, but at greater depths. Maybe the extra drilling by Newcrest is to determine the relationship between the uranium layers and the large intercepts of the other mineralised zones beneath.
No idea really until Newcrest detail drilling results unfortunately.