| 1507.90.40 | 20 | Once-refined (subjected to alkali or caustic wash, but not bleached or deodorized) | kg | | | |
| 1512.29.00 | 20 | Once-refined (subjected to alkalai or caustic wash, but not bleached or deodorized) | kg | | | |
| 1515.29.00 | 20 | Once-refined (subjected to alkalai or caustic wash, but not bleached or deodorized) | kg | | | |
| 2805 | | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury: | | | | |
| 2805.11.00 | 00 | Alkali or alkaline-earth metals: | | | | |
| 2839 | | Silicates; commercial alkali metal silicates: | | | | |
| 2938 | | XII. GLYCOSIDES AND VEGETABLE ALKALOIDS, NATURAL OR REPRODUCED BY SYNTHESIS, AND THEIR SALTS, ETHERS, ESTERS AND OTHER DERIVATIVES | | | | |
| 2939 | | Vegetable alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives: | | | | |
| 2939.11.00 | 00 | Alkaloids of opium and their derivatives; salts thereof: | | | | |
| 2939.20.00 | | Alkaloids of cinchona and their derivatives; salts thereof | | Free | | Free |
| 2939.61.00 | 00 | Alkaloids of rye ergot and their derivatives; salts thereof: | | | | |
| 3003.40.00 | 00 | Containing alkaloids or derivatives thereof but not containing hormones or other products of heading 2937 or antibiotics | kg | Free | | 25% |
| 3004.40.00 | | Containing alkaloids or derivatives thereof but not containing hormones, other products of heading 2937 or antibiotics | | Free | | 25% |
