33310 - Primary copper (Miscellaneous)
33311 - Copper smelter products
33312 - Refined primary copper
3331217 - - Refined primary cathode copper & Copper-base alloy
3331220 - - Refined primary copper & Copper-base alloy wire bar
3331223 - - Refined primary copper & Copper-base alloy ingot & Ingot bar
3331226 - - Other Refined primary copper & Copper-base alloy, incl Cakes, Slabs, Shot, etc.
3331230 - - Other Refined primary copper & Copper-base alloy (incl Wire bar, Ingot & Ingot bar, Cakes, Slabs, Shot, etc.)
3331299 - - Refined copper (Miscellaneous)
3331XX0 - - Primary copper & Copper-base alloys (Miscellaneous - Volume)
3331XX2 - - Primary copper & Copper-base alloys (Miscellaneous - Speciality)