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Effective Period Rates of Duty Unit of Quantity Article Description Stat. Suf- fix Heading/ Subheading 2 1 Special General (2S)-5-Oxopyrrolidine-2-carboxylic acid-(1S,2S,3S,4R,5S)-5- [4-chloro-3-(4-ethoxybenzyl)phenyl]-1-(hydroxymethyl)- 6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol (1:1) (Ertugliflozin L-pyroglutamic acid) (CAS No. 1210344-83-4) (provided for in subheading 2934.99.30).......................................................... 1/ 9902.07.42 On or before 12/31/2020 No change No change Free 1/ Ethyl 5,5-diphenyl-4H-1,2-oxazole-3-carboxylate (Isoxadifen-ethyl) (CAS No. 163520-33-0) (provided for in subheading 2934.99.39).............................................................. 1/ 9902.07.43 On or before 12/31/2020 No change No change 4.0% 1/ Sodium 2-2'-methylene bis-(4,6-di-tert-butyl phenyl)phosphate (CAS No. 85209-91-2) (provided for in subheading 2934.99.39)................................................................................... 1/ 9902.07.44 On or before 12/31/2020 No change No change Free 1/ 2,2-(1,4-Phenylene)bis((4H-3,1-benzoxazine-4-one) (CAS No. 18600-59-4) (provided for in subheading 2934.99.39)............ 1/ 9902.07.45 On or before 12/31/2020 No change No change Free 1/ 2H-3,1-Benzoxazine-2,4(1H)-dione (CAS No. 118-48-9) (provided for in subheading 2934.99.44) .................................. 1/ 9902.07.46 On or before 12/31/2020 No change No change Free 1/ (RS)-N-[2-(1,3-Dimethylbutyl)-3-thienyl]-1-methyl-3- (trifluoromethyl)pyrazole-4-carboxamide (Penthiopyrad) (CAS No. 183675-82-3) (provided for in subheading 2934.99.90).... 1/ 9902.07.47 On or before 12/31/2020 No change No change Free 1/ 2-Amino-3-cyanothiophene (CAS No. 4651-82-5) (provided for in subheading 2934.99.90).................................................... 1/ 9902.07.48 On or before 12/31/2020 No change No change Free 1/ 1,3-Dimethyl-1-[5-(2-methyl-2-propanyl)-1,3,4-thiadiazol-2-yl]urea (Tebuthiuron) (CAS No. 34014-18-1) (provided for in subheading 2934.99.90).............................................................. 1/ 9902.07.49 On or before 12/31/2020 No change No change Free 1/ 4-(4-Methylphenyl)-4-oxobutanoic acid - 4-ethylmorpholine (2:1) (CAS No. 171054-89-0) (provided for in subheading 2934.99.90)................................................................................... 1/ 9902.07.50 On or before 12/31/2020 No change No change Free 1/ C1-C3 Perfluoroalkyl perfluoromorpholine (CAS No. 382-28-5) (provided for in subheading 2934.99.90)................................... 1/ 9902.07.51 On or before 12/31/2020 No change No change Free 1/ 5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole (Etridiazole) (CAS No. 2593-15-9) (provided for in subheading 2934.99.90) ........................................................................................................ 1/ 9902.07.52 On or before 12/31/2020 No change No change Free 1/ 3-({[5-(Difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H- pyrazol-4-yl]methyl}sulfonyl)-5,5-dimethyl-4,5- dihydro-1,2-oxazole (Pyroxasulfone) (CAS No. 447399-55-5) (provided for in subheading 2934.99.90)................................... 1/ 9902.07.53 On or before 12/31/2020 No change No change 3.5% 1/ 2H-3,1-Benzoxazine-2,4(1H)-dione (Isatoic anhydride) (CAS No. 118-48-9) (provided for in subheading 2934.99.90)......... 1/ 9902.07.54 On or before 12/31/2020 No change No change Free 1/ 1/ See chapter 99 statistical note 1. Rates of Duty 1 Harmonized Tariff Schedule of the United States Revision 15 (2026) Annotated for Statistical Reporting Purposes XXII 99 - II - 48 Note:The shaded areas indicate the provision has expired