... > SECTION XV - BASE METALS AND ARTICLES OF BASE METAL > CHAPTER 81 - OTHER BASE METALS; CERMETS; ARTICLES THEREOF > 8112 Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap > Other > Other > Niobium (columbium)