when will stb be taken over?

Most who post here agree that what STB have discovered what appears to be a world class potash deposit.

So when will this company be taken out? Surely major potash companies have had a look at STB by now. There is certainly enough data to make an informed decision about the resource - including future exploration upside.

Is there possibly something wrong with the resource that the market has not been told about yet? Be interested in others thoughts.

I'm probably being a little impatient, but if i were a cashed up major i'd certainly have taken a look by now.