… Tanning extracts of vegetable origin; tannins and their salts, ethers, esters and other derivatives. …
Explanatory notes
… vallonia, gambier, mangrove or divi-divi. The heading does not include : (a) Raw vegetable materials, … of aluminium, bismuth, calcium, iron, manganese, zinc, hexamethylenetetramine, phenazone or orexine. Other … metal compounds ( heading 28.43 ) or tannin derivatives of headings 28.44 to 28.46 and 28.52 . (b) Gallic acid ( …