copolymers containing 50 to 75 percent by weight of propylene 4.9% No change No change On or before 12/31/2024 . 4672. Ethylene-propylene copolymers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.84 Ethylene-propylene copolymers, containing 50 to 75 percent by weight of propylene (CAS No. 9010–79–1) (provided for in subheading 3902.30.00) 3.4% No change No change On or before 12/31/2024 . 4673. Benzene alkylated with polypropylene Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.85 Benzene, polypropylene derivatives (CAS No. 68081–77–6) (provided for in subheading 3902.90.00) 1.4% No change No change On or before 12/31/2024 . 4674. Chlorinated polyolefin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.86 Chlorinated polyolefin (1-butene, polymer with ethene and 1-propene, chloro- and tetrahydro-2,5-dioxo-3-furanyl-terminated) (CAS No. 560096–07–3) (provided for in subheading 3902.90.00) Free No change No change On or before 12/31/2024 . 4675. Adsorbent resin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.87 Poly(divinylbenzene-co-ethylstyrene) (CAS No. 9043–77–0) (provided for in subheading 3903.90.50) Free No change No change On or before 12/31/2024 . 4676. Vinyl chloride-hydroxypropyl acrylate copolymer Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.88 2-Hydroxypropyl prop-2-enoate (acrylate), oxiran-2-ylmethyl 2-methylprop-2-enoate (glycidyl methacrylate), vinyl chloride copolymer (CAS No. 164718–75–6) (provided for in subheading 3904.40.00) Free No change No change On or before 12/31/2024 . 4677. Vinyl chloride ethylene copolymer with hydrophic properties Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.89 Mixtures containing by weight less than 70