Our company ningxia minerals industry & trade co., limited is a professional import & export corporation, which is enjoying a good reputation and specializing in manufacturing & exporting business for more than ten years in the fields of ferro alloys and carbon products. our main products including: ferro silicon, ferro manganese, silicon manganese, silicon metal, electrolytic manganese flake and lumps, manganese metal briquette, magnesium ingot, ferro silicon magnesium, calcium carbide, calcined petroleum coke, low carbon ferro chrome, carbon additive, graphitized petroleum coke etc.