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Harmonized System
Section VI > Chapter 28 > Heading 2836 > 2836.20
… Disodium carbonate …
Section VI > Chapter 28 > Heading 2836 > 2836.40
… Potassium carbonates …
Section VI > Chapter 28 > Heading 2836 > 2836.50
… Calcium carbonate …
Section VI > Chapter 28 > Heading 2836 > 2836.60
… Barium carbonate …
Section VI > Chapter 28 > Heading 2836 > 2836.9 > 2836.91
… Lithium carbonates …
Section VI > Chapter 28 > Heading 2836 > 2836.9 > 2836.92
… Strontium carbonate …
Section VI > Chapter 28 > Heading 2840 > 2840.20
… Other borates …