1 Non-Phosphatic Chemical Products Used in Industry, Science, Photography, Agriculture, Horticulture, Forestry, Manures (Natural and Artificial); Heavy Media and Chemicals for Ore Dressing, Non-Phosphatic Chemicals for the Manufacture of Mineral Acids, Non-Phosphatic Fertilizing Substances for Plants, Purified Baddeleyite, Zirconium Oxide, Zirconium Chemicals, Hafnium Chemicals, Magnesia, Magnesium Chemicals, Potash, Potassium Chemicals, Uranium Compounds, Thorium Compounds, Iron Oxides, Magnetite, Titanium Compounds, Copper Compounds, Calcium and Magnesium Carbonates, Titanium Minerals and Titanium Mineral Concentrates; Vermiculite; Phlogopite; Magnesia; Fluorite; Calcite; and Dolomite; but Not Including Chemical Compounds in Treating Metals