1 Chemical and biological products, namely, arsenic, nitrogen, carbon, solidified gases being fuel, hydrogen, iodine for industrial chemical purposes, mercury, oxygen, phosphorus, potassium, sodium, alkaline metals, silicon carbide for use as a raw material in the manufacture of other goods, ammonium nitrate, aluminium alum, aluminium hydrate, aluminium silicate, aluminium chloride, aluminium iodide, sal ammoniac, mineral acids, citric acid, diastase for industrial purposes, dolomite, glycerine for industrial purposes, enzyme preparations, enzymes, methane, uranium nitrate, hydrogen peroxide for industrial purposes, phenol, sodium salts for industrial purposes, antioxidants for use in manufacture, organic digestate for use as a fertilizer, adhesive gums for industrial purposes, catalysts, salts for industrial purposes, sulfides, and aluminum chlorides, all for use in the mining industry