2939 Natural or synthetic alkaloids and their salts, ethers, esters, and other derivatives: HS code chinese tariffs

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29391 -Opium alkaloids and their derivatives, as well as their salts: -Opium alkaloids and their derivatives, as well as their salts:

29392000 -Golden chicken alkaloids and their derivatives, as well as their salts -Golden chicken alkaloids and their derivatives, as well as their salts

29393000 -Caffeine and its salts -Caffeine and its salts

29394 -Ephedra alkaloids and their derivatives, as well as their salts: -Ephedra alkaloids and their derivatives, as well as their salts:

29395 -Theophylline, aminophylline and their derivatives, as well as their salts: -Theophylline, aminophylline and their derivatives, as well as their salts:

29396 -Ergot alkaloids and their derivatives, as well as their salts -Ergot alkaloids and their derivatives, as well as their salts

29397 -Other, plant derived: -Other, plant derived:

29398 -Other: -Other: