I think that's precisely it Marwal. Now, PEM knows that if they use the same procedures to extract gold (obviously now it will be cleaner/less pollutant). Basically, it sounds as if they'll have no problems going forward...
I also think PEM (or whoever buys it out) wont have to build a refinery.. Theres a good one not too far away: http://www.youtube.com/watch?v=vt-jessnbXA. BIG savings in costs!
http://www.sunshinerefinery.com/s/Refining.asp