RE:what is the cost of there revenues? 2013 earnings 24.4 milThere is lots in the market we don't know. For example why does YFI get a market cap of $50 million with NO SALES, and IMP has a current market cap of $42 million with a $175 million US govt contract. Why does ZEN have a market cap of $86 million with no sales and the need to finance a large mine?