The true cost of running a mining a company has always been superseded by the cost of mining a ounce of gold. Not too representable of how profitable the company is and the how healthy there business is running. All in sustaining cash cost is now being reported by many mining companies, including now in MUX. As much as we want gold over 1600 per ounce you dont want to see sustaining cost going over 1300 per ounce, because we become closer to being out of business.