sequence the following new heading: 9902.24.43 Polyvinyl chloride stabilizers consisting of magnesium aluminum hydroxide carbonate (synthetic hydrotalcite) (CAS No. 11097–59–9) coated with fatty acids (CAS No. 67701–03–5) and magnesium stearate (CAS No. 91031–63–9) (provided for in subheading 3812.39.90) 1.7% No change No change On or before 12/31/2024 . 4632. Silica scorch retarders and polymerization inhibitors Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.44 Mixtures of precipitated silica gel (CAS No. 112926–00–8) and (4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyl)oxidanyl (CAS No. 2226–96–2) of a kind used as polymerization inhibitors (provided for in subheading 3812.39.90) Free No change No change On or before 12/31/2024 . 4633. Synthetic hydrotalcite Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.45 Magnesium aluminum hydroxide carbonate (synthetic hydrotalcite) (CAS No. 11097–59–9) coated with a vegetable-based (palm oil) stearic acid (provided for in subheading 3812.39.90) 1.8% No change No change On or before 12/31/2024 . 4634. Light stabilizers for construction products Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.46 Hindered amine light stabilizers for polypropylene, polyvinyl chloride and other similar goods, the foregoing consisting of 1,6-hexanediamine, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymer with 2,4,6-trichloro-1,3,5-triazine, reaction products with N-butyl-1-butanamine and N-butyl-2,2,6,6-tetramethyl-4-piperidinamine (CAS No. 192268–64–7) (provided for in subheading 3812.39.90) Free No change No change On or before 12/31/2024 . 4635. Light stabilizer for plastics Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.47 Light stabilizer for plastics containing a mixture of (2,2,6,6-tetramethy, 4-piperidinyl) polymer in 50 percent polypropylene