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Effective Period Rates of Duty Unit of Quantity Article Description Stat. Suf- fix Heading/ Subheading 2 1 Special General Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (CAS No. 2082-79-3) (provided for in subheading 2918.29.75)................................................................................... 1/ 9902.03.13 On or before 12/31/2020 No change No change Free 1/ Pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) (CAS No. 6683-19-8) (provided for in subheading 2918.29.75)....... 1/ 9902.03.14 On or before 12/31/2020 No change No change Free 1/ Ethyl 4-hydroxybenzoate (CAS No. 120-47-8) (provided for in subheading 2918.29.75).............................................................. 1/ 9902.03.15 On or before 12/31/2020 No change No change Free 1/ Methyl 4-hydroxybenzoate (CAS No. 99-76-3) (provided for in subheading 2918.29.75).......................................................... 1/ 9902.03.16 On or before 12/31/2020 No change No change Free 1/ Hexadecyl 4-hydroxy-3,5-bis(2-methyl-2-propanyl)benzoate (CAS No. 67845-93-6) (provided for in subheading 2918.29.75) ........................................................................................................ 1/ 9902.03.17 On or before 12/31/2020 No change No change Free 1/ 2-Benzoylbenzoic acid (CAS No. 85-52-9) (provided for in subheading 2918.30.30).............................................................. 1/ 9902.03.18 On or before 12/31/2020 No change No change 3.7% 1/ Prohexadione-calcium (Calcium bis(3,5-dioxo-4-propionylcyclohexanecarboxylate)) (CAS No. 127277-53-6) (provided for in subheading 2918.30.90).......... 1/ 9902.03.19 On or before 12/31/2020 No change No change Free 1/ Glyoxyl acid (Glyoxylic acid) (CAS No. 298-12-4) (provided for in subheading 2918.30.90).................................................... 1/ 9902.03.20 On or before 12/31/2020 No change No change Free 1/ (+)-(R)-2-(2,4-Dichlorophenoxy)propanoic acid (Dichlorprop-p) (CAS No. 15165-67-0) (provided for in subheading 2918.99.18)................................................................................... 1/ 9902.03.21 On or before 12/31/2020 No change No change Free 1/ 4-(2,4-Dichlorophenoxy) butyric acid (2,4-DB) (CAS No. 94-82-6) (provided for in subheading 2918.99.20)................... 1/ 9902.03.22 On or before 12/31/2020 No change No change Free 1/ 2-Methyl-4-chlorophenoxyacetic acid (MCPA) (CAS No. 94-74-6) (provided for in subheading 2918.99.20)................... 1/ 9902.03.23 On or before 12/31/2020 No change No change 2.5% 1/ 1-Ethoxy-1-oxo-2-propanyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate (Lactofen) (CAS No. 77501-63-4) (provided for in subheading 2918.99.20)................................................................................... 1/ 9902.03.24 On or before 12/31/2020 No change No change 4.0% 1/ Triethylene glycol bis[3-(3-tert-butyl-4-hydroxy-5-methyl- phenyl)propionate] (CAS No. 36443-68-2) (provided for in subheading 2918.99.43).............................................................. 1/ 9902.03.25 On or before 12/31/2020 No change No change Free 1/ 4,4ʹ-Oxydiphthalic anhydride (CAS No. 1823-59-2) (provided for in subheading 2918.99.43).................................................... 1/ 9902.03.26 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 - 16 Note:The shaded areas indicate the provision has expired