;2-(phosphonomethylamino)acetic acid (CAS No. 40465–66–5) (provided for in subheading 2931.39.00) Free No change No change On or before 12/31/2024 . 4318. THPC Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.21.23 Tetrakis(hydroxymethyl) phosphonium chloride (CAS No. 124–64–1) (provided for in subheading 2931.39.00) Free No change No change On or before 12/31/2024 . 4319. Flame retardant for textiles Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.21.24 Tetrakis(hydroxymethyl) phosphonium sulfate (CAS No. 55566–30–8) (provided for in subheading 2931.39.00) 1.6% No change No change On or before 12/31/2024 . 4320. Glyphosate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.21.25 N-(Phosphonomethyl)glycine (Glyphosate) (CAS No. 1071–83–6) (provided for in subheading 2931.39.00) 3.5% No change No change On or before 12/31/2024 . 4321. Ethephon Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.21.26 (2-Chloroethyl)phosphonic acid (Ethephon) (CAS No. 16672–87–0) (provided for in subheading 2931.39.00) 2.4% No change No change On or before 12/31/2024 . 4322. Benzene phosphinic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.21.27 Phenylphosphinic acid (CAS No. 1779–48–2) (provided for in subheading 2931.39.00) Free No change No change On or before 12/31/2024 . 4323. HEDP Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.21.28 Tetrasodium