| 1214 | | Rutabagas (swedes), mangolds, fodder roots, hay, alfalfa (lucerne), clover, sainfoin, forage kale, lupines, vetches and similar forage products, whether or not in the form of pellets: | | | | |
| 2711.13.00 | | Butanes | | Free | | Free |
| 2711.13.00 | 10 | Butanes with a purity of 90 liquid volume percent or more, but less than 95 liquid volume percent | bbl | | | |
| 2711.14.00 | | Ethylene, propylene, butylene and butadiene | | Free | | Free |
| 2711.14.00 | 40 | Butadiene | kg | | | |
| 2711.29.00 | 20 | Butanes: | | | | |
| 2711.29.00 | 20 | Butanes with a purity of 90 liquid volume percent or more, but less than 95 liquid volume percent | bbl | | | |
| 2901.10.10 | 00 | Ethane and butane | kg | Free | | Free |
| 2901.24 | | Buta-1,3-diene and isoprene: | | | | |
| 2901.24.10 | 00 | Buta-1,3-diene | kg | Free | | Free |
| 2903.19.05 | 00 | 1,2-Dichloropropane (Propylene dichloride) and dichlorobutanes | kg | 5.1% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 33.3% |
| 2905.13.00 | 00 | Butan-1-ol (n-Butyl alcohol) | kg | 5.5% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 50.5% |
| 2905.14 | | Other butanols: | | | | |
| 2905.19.90 | 05 | 3,3-Dimethylbutan-2-ol (pinacolyl alcohol) | kg | | | |
| 2912.19.25 | 00 | Butanal (Butyraldehyde, normal isomer) | kg | 5.5% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P) 3.1% (SG) | 61.5% |
| 2912.19.40 | 00 | Isobutanal | kg | 5.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P) 3.1% (SG) | 61.5% |
| 2914.12.00 | 00 | Butanone (Methyl ethyl ketone) | kg | 3.1% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 20% |
| 2915.60 | | Butanoic acids, pentanoic acids, their salts and esters: | | | | |
| 2917.19.20 | 00 | Maleic acid; Succinnic acid derived in whole or in part from maleic anhydride or from cyclohexane; Glutaric acid derived in whole or in part from cyclopentanone; and anhydrides, halides, peroxides, peroxyacids and other derivatives of adipic acid, of fumaric acid derived in whole or in part from aromatic hydrocarbons, of maleic acid, of succinnic acid derived in whole or in part from maleic anhydride or from cyclohexane or of glutaric acid derived in whole or in part from cyclopentanone, not elsewhere specified or included: | | | | |
| 2918.30.15 | 00 | 2-Chloro-4,5-difluoro-￠/oxobenzenepropanoic acid, ethyl ester; and Ethyl 2-keto-4-phenylbutanoate | kg | Free | | 15.4￠/kg + 57% |
| 2918.30.70 | 00 | Dimethyl acetyl succinate; Oxalacetic acid diethyl ester, sodium salt; 4,4,4-Trifluoro-3-oxobutanoic acid, ethyl ester; and 4,4,4-Trifluoro-3-oxobutanoic acid, methyl ester | kg | Free | | 25% |
| 2922.42 | | Glutamic acid and its salts: | | | | |
| 2922.42.10 | 00 | Monosodium glutamate | kg | 6.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 25% |
| 2922.50.13 | 00 | Isoetharine hydrochloride; Isoxsuprine hydrochloride; Nylidrin hydrochloride; Phenylephrine hydrochloride; Salbutamol (Albuterol); and Terbutaline sulfate | kg | Free | | 15.4￠/kg + 47% |
| 2926.30 | | Fenproporex (INN) and its salts; Methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4- diphenylbutane): | | | | |
