Zinc 4-methyl-1H-benzimidazole-2-thiolate (CAS No. 61617–00–3) (provided for in subheading 3812.39.60) Free No change No change On or before 12/31/2020 . 920. Antioxidizing preparations (Irganox 1141) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.32 2,4-Dimethyl-6-(1-methylpentadecyl)phenol (CAS No. 134701–20–5) (provided for in subheading 3812.39.60) Free No change No change On or before 12/31/2020 . 921. Hindered amine light stabilizer Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.33 1,3-Propanediamine, N,N″ -1,2-ethanediylbis-, polymer with 2,4,6-trichloro-1,3,5-triazine,reaction products with N-butyl-2,2,6,6-tetramethyl-4-piperidinamine (CAS No. 136504–96–6) (provided for in subheading 3812.39.60) Free No change No change On or before 12/31/2020 . 922. Reaction products of phosphorus trichloride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.34 Preparations containing tetrakis[2,4-bis(2-methyl-2-propanyl)phenyl] 4,4′-biphenyldiylbis(phosphonite) (CAS No. 119345–01–6) (provided for in subheading 3812.39.60) Free No change No change On or before 12/31/2020 . 923. Phenol, 4-methyl-, reaction products Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.35 4-Methylphenol - tricyclo[5.2.2.0 2,6 ]undecane (1:1) (CAS No. 68610–51–5) (provided for in subheading 3812.39.60) Free No change No change On or before 12/31/2020 . 924. Triazine derivative (Tinuvin NOR 371 FF) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.36 1,6-Hexanediamine,N1,N6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymer with 2,4,6-trichloro-1,3,5-triazine, reaction products with 3-bromo-1-propene,N-butyl-1-butanamine and N-butyl-2,2,6,6-tetramethyl-4-piperidinamine, oxidized, hydrogenated (CAS No. 247243–62–5) (provided for in subheading