;2-ethyl-2-(hydroxymethyl)propane-1,3-diol;oxepan-2-one) (CAS No. 129757–76–2), entirely spherical micro-spheres with mean particle size of 1 to 25 µm and coated with 1 to 3 percent by weight of silica (CAS No. 7631–86–9) (provided for in subheading 3909.50.50) Free No change No change On or before 12/31/2025 . 11612. HDI/PPG/Polycaprolactone crosspolymer micro-spheres Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.45 2-Oxepanone, polymer with 1,6-diisocyanatohexane, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and α-hydro-ω-hydroxy[poly[oxy(methyl-1,2-ethanediyl)]] ether with D-glucitol (6:1) (CAS No. 302791–95–3), entirely spherical micro-spheres with mean particle size of 3 to 25 µm (provided for in subheading 3909.50.50) Free No change No change On or before 12/31/2025 . 11613. Aromatic isocyanate prepolymer Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.46 Isocyanic acid, polymethylenepolyphenylene ester, polymer with 2-methyloxirane and oxirane (CAS No. 67423–05–6) (provided for in subheading 3909.50.50) Free No change No change On or before 12/31/2025 . 11614. Blocked polyisocyanate containing solvent Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.47 Phenol, 4,4′-(1-methylethylidene)bis-, polymer with 1,3-diisocyanatomethylbenzene, 1,1′-methylenebis[4-isocyanatobenzene], 2-methyloxirane and 2-methyloxirane polymer with oxirane ether with 1,2,3-propanetriol (3:1), Me Et ketone oxime-blocked (CAS No. 1334421–42–9) (provided for in subheading 3909.50.50) Free No change No change On or before 12/31/2025 . 11615. Polyisocyanate adduct for powder coatings Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.48 1,3-Bis((5-isocyanato-1,3,3-trimethylcyclohexyl)methyl)-1,3-diazetidine-2,4-dione