Harmonized System
Section VI > Chapter 29 > Heading 2901
Acyclic hydrocarbons.
Section VI > Chapter 28 > Heading 2852
Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams.
Section II > Chapter 12 > Heading 1211 > 1211.20
Ginseng roots
Section II > Chapter 12 > Heading 1211 > 1211.40
Poppy straw
Section II > Chapter 12 > Heading 1211 > 1211.60
Bark of African cherry (Prunus africana)
Section II > Chapter 12 > Heading 1212 > 1212.2
Seaweeds and other algae