RMS have been trucking from multiple locations over several...

RMS have been trucking from multiple locations over several years so they would have indepth knowledge of costs and economics of trucking gold. I imagine they would have crunched the numbers pretty heavily before making an offer.

The other more unpalatable scenario for EXU is that Mace which would have boosted the overall grade is not as big as they hoped and therefore they would have been over paying based on current reserves. I would have thought that was the major reason for the DD - they would already know trucking costs, but they hadn't had access to the data room to get a full estimation of Mace or future exploration potential.