Harmonized System
Section VI > Chapter 28 > Heading 2840 > 2840.1
… Disodium tetraborate (refined borax) …
Section VI > Chapter 28 > Heading 2845 > 2845.10
… Heavy water (deuterium oxide) …
Section VI > Chapter 28 > Heading 2826 > 2826.30
… Sodium hexafluoroaluminate (synthetic cryolite) …
Section XV > Chapter 72 > Heading 7212 > 7212.50
… Otherwise plated or coated …
Section V > Chapter 25 > Heading 2511 > 2511.10
… Natural barium sulphate (barytes) …
Section V > Chapter 25 > Heading 2511 > 2511.20
… Natural barium carbonate (witherite) …
Section V > Chapter 25 > Heading 2518 > 2518.20
… Calcined or sintered dolomite …
Section V > Chapter 25 > Heading 2519 > 2519.10
… Natural magnesium carbonate (magnesite) …
Section V > Chapter 26 > Heading 2611 > 2611.00
… Tungsten ores and concentrates …
Section VII > Chapter 39 > Heading 3920 > 3920.6 > 3920.62
… Of poly(ethylene terephthalate) …