Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED 28 Inorganic chemicals;organic or inorganic compounds of precious metals, ofrare-earth, of radioactive elements or of isotopes 28 44 RADIOACTIVE CHEMICAL ELEMENTS/ISOTOPES AND THEIR COMPOUNDS, ETC Commodity Code Description 28 44 10 Natural uranium and its compounds; alloys, dispersions (including cermets), cera 28 44 20 Uranium enriched in U 235 and its compounds; plutonium and its compounds; alloys 28 44 30 Uranium depleted in U 235 and its compounds; thorium and its compounds; alloys, 28 44 40 Radioactive elements and isotopes and compounds other than those of sub heading 28 44 50 Spent (irradiated) fuel elements (cartridges) of nuclear reactors