Subheading 283620: Carbonates; Disodium Carbonate
Subheading 283630: Carbonates; Sodium Hydrogen Carbonate (Sodium Bicarbonate)
Subheading 283640: Carbonates; Potassium Carbonate
Subheading 283650: Carbonates; Calcium Carbonate
Subheading 283660: Carbonates; Barium Carbonate
Subheading 283691: Carbonates; Lithium Carbonate
Subheading 283692: Carbonates; Strontium Carbonate
Subheading 283699: Carbonates; N.E.C. in Heading no. 2836 and other than Lithium … etc.