3907.99.50) Free No change No change On or before 12/31/2025 . 11596. Polyester-polyamide dispersants Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.29 Dodecanoic acid, reaction products with ethylenimine-2-oxepanone polymer (CAS No. 132434–99–2) (provided for in subheading 3907.99.50) Free No change No change On or before 12/31/2025 . 11597. Nylon-12 micro-spheres Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.30 Nylon-12, entirely spherical micro-spheres with mean particle size of 1 to 25 µm (CAS No. 24937–16–4) (provided for in subheading 3908.10.00) Free No change No change On or before 12/31/2025 . 11598. Short nylon-66 fibers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.31 Nylon 66 (CAS No. 32131–17–2) fiber, measuring 3.3 decitex or more but not more than 22.2 decitex and having a fiber length each measuring 0.5 mm or more but not over 2 mm (provided for in subheading 3908.10.00) Free No change No change On or before 12/31/2025 . 11599. Short nylon 6 fibers, colored Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.32 Nylon 6 (CAS No. 25038–54–4) fibers, colored with pigments, measuring approximately 5.5 or more but not more than 22.2 decitex and having a fiber length each measuring 1 mm or more but not over 5 mm (provided for in subheading 3908.10.00) Free No change No change On or before 12/31/2025 . 11600. Short triangular nylon 6 fibers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.33 Triangular nylon 6 (CAS No. 25038–54–4) fibers, measuring 2 or more but not more than 5 decitex and having a fiber length each measuring 0.5 mm or more but not over 2 mm (provided for in subheading 3908.10.00) Free No change No change On or before 12/31/2025 . 11601. Short star-shaped nylon 6 fibers Subchapter II of