RE:smelt using electric arc or KWG gas reducer technologyKWG's Chromite Ore to Ferro Chrome Natural-Gas Reduction Furnace(s) in the ROF aren't Smelter(s); rather they will be Enviromentally Friendly KWG Reduction Furnace(s). A Smelter melts (smelts) Ni Cu etc Sulphides/Sulfides. On another point, Natural Gas can be a very cost effective Environmentally sound all purpose ROF Electricity Generator.