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Effective Period Rates of Duty Unit of Quantity Article Description Stat. Suf- fix Heading/ Subheading 2 1 Special General 4,6-Dimethyl-2-pyrimidinamine (CAS No. 767-15-7) (provided for in subheading 2933.59.95).................................................... 1/ 9902.06.48 On or before 12/31/2020 No change No change Free 1/ 2-Amino-5,7-dimethoxy-1,2,4-triazolo[1,5-a]pyrimidine (ADTP) (CAS No. 13223-43-3) (provided for in subheading 2933.59.95)................................................................................... 1/ 9902.06.49 On or before 12/31/2020 No change No change Free 1/ Cyanuric chloride (2,4,6-trichloro-1,3,5-triazine) (CAS No. 108-77-0) (provided for in subheading 2933.69.60)................ 1/ 9902.06.50 On or before 12/31/2020 No change No change Free 1/ 4-Amino-6-tert-butyl-3-methylthio-1,2,4-triazin-5(4H)-one (Metribuzin) (CAS No. 21087-64-9) (provided for in subheading 2933.69.60)................................................................................... 1/ 9902.06.51 On or before 12/31/2020 No change No change 1.9% 1/ 3-Cyclohexyl-6-dimethylamino-1-methyl-1,3,5-triazine- 2,4(1H,3H)-dione (Hexazinone) (CAS No. 51235-04-2) (provided for in subheading 2933.69.60)................................... 1/ 9902.06.52 On or before 12/31/2020 No change No change Free 1/ 6-Methyl-4-{[(1E)-pyridin-3-ylmethylene]amino}-4,5- dihydro-1,2,4-triazin-3(2H)-one (Pymetrozine) (CAS No. 123312-89-0) (provided for in subheading 2933.69.60).......... 1/ 9902.06.53 On or before 12/31/2020 No change No change Free 1/ 6-Chloro-4-N-ethyl-2-N-propan-2-yl-1,3,5-triazine-2,4-diamine (Atrazine) (CAS No. 1912-24-9) (provided for in subheading 2933.69.60)................................................................................... 1/ 9902.06.54 On or before 12/31/2020 No change No change Free 1/ 6-Chloro-2-N,4-N-diethyl-1,3,5-triazine-2,4-diamine (Simazine) (CAS No. 122-34-9) (provided for in subheading 2933.69.60)................................................................................... 1/ 9902.06.55 On or before 12/31/2020 No change No change Free 1/ 1,3,5-Triazinane-2,4,6-trione—1,3,5-triazine-2,4,6-triamine (1:1) (CAS No. 37640-57-6) (provided for in subheading 2933.69.60)................................................................................... 1/ 9902.06.56 On or before 12/31/2020 No change No change Free 1/ 6-Chloro-2-N,4-N-di(propan-2-yl)-1,3,5-triazine-2,4-diamine (Propazine) (CAS No. 139-40-2) (provided for in subheading 2933.69.60)................................................................................... 1/ 9902.06.57 On or before 12/31/2020 No change No change Free 1/ N-[(1R,2S)-2,6-Dimethyl-2,3-dihydro-1H-inden-1-yl]-6-[(1R)- 1-fluoroethyl]-1,3,5-triazine-2,4-diamine (Indaziflam) (CAS No. 950782-86-2) (provided for in subheading 2933.69.60).......... 1/ 9902.06.58 On or before 12/31/2020 No change No change Free 1/ 2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol (CAS No. 147315-50-2) (provided for in subheading 2933.69.60).... 1/ 9902.06.59 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 - 40 Note:The shaded areas indicate the provision has expired