Explanatory notes
… water (sometimes acidulated) from the vegetable material (wood, barks, leaves, fruits, roots, etc.) previously ground … shredded, powdered or not, of a kind used primarily in the production of tanning extracts ( heading 14.04 ). (b) … 32.02 ). (c) Residual lyes from the manufacture of wood pulp, whether or not concentrated ( heading 38.04 ). …