10 g/t announcement Timing

When was the drilling which found the 10g/t vein carried out? Was this part of the Ausdrill drilling campaign? If so why was this announcement delayed and not part of the original announcement? Which returned pretty disappointing results.

Does this mean there may be other finds withheld waiting for the right time to be announced?

If the price starts to rise for no reason maybe we should assume the insiders know another price lifting announcement is on the way and buy a bit more as well.