After rereading parts of the document, it looks like the correct ratio will ultimately be 70:30  underground:open pit mine ore with the open pit mining being phase 1.  Interesting...  I guess that here is considerable variability in the site for HRE:LRE and also what valiable other minerals are present (eg, berillium, silver, etc).  I think that the low concentrations  or grade of all these valuable minerals makes efficient processing all the more critical and tricky.  This is really a very interesting report.  It looks to me like it is likely to take 2 years to get the mine up and running assuming that the effort is not financing restrained.  Are there any financial talents on this website that can estimate their cash burn?  It seems like they have done quite a lot for not much money, but that is just an impression and not the result of reviewing their balance sheets.