to add to that one has to take into account the means of processing the material. their processor is quite inefficient and it appears that they were also doing everything by hand up until they got themselves a excavator and dump truck to strip overburden and extract the pay layer for processing. they have good reserves (wouldn't spend money on equipment for a scam) its their processing capacity that they have had to increase to make money. they are getting there. I will repost one I did a while ago with some details
Four seasons in Canada... Early Winter, Winter, Late Winter and Next Winter