; chloride (CAS No. 65997–24–2) in spherical beads with a mean particle size between 0.30 and 1.20 mm (provided for in subheading 3914.00.60) Free No change No change On or before 12/31/2020 . 1055. Amberlite IRP69 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.71 Ion-exchange resin comprising sodium salts of sulfonated poly(divinylbenzene-co-ethylstyrene-co-styrene) (CAS No. 69011–22–9) (provided for in subheading 3914.00.60) Free No change No change On or before 12/31/2020 . 1056. Anion ion-exchange resin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.72 Anion ion-exchange resin, hydroxide form, chloromethylated, and 2-(dimethylamino)ethanol-quaternized hydroxide of poly(divinylbenzene-co-styrene-co-ethylstyrene) (CAS No. 69011–16–1) in spherical beads with a mean particle size between 0.30 and 1.20 mm (provided for in subheading 3914.00.60) Free No change No change On or before 12/31/2020 . 1057. Amberlite IRC748 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.73 Chloromethylated, trimethylamine-quaternized poly(divinylbenzene-co-styrene-co-ethylstyrene) (CAS No. 69011–19–4) (provided for in subheading 3914.00.60) Free No change No change On or before 12/31/2020 . 1058. DOWEX* MAC-3 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.74 Poly(divinylbenzene-co-acrylic acid) (CAS No. 9052–45–3) (provided for in subheading 3914.00.60) Free No change No change On or before 12/31/2020 . 1059. Iminidiacetic acid ion-exchange resin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.75 Iminidiacetic acid ion-exchange resin (sodium 2,2′-[(4-vinylbenzyl)imino]diacetate - 1,4-divinylbenzene (2:1:1) (CAS No. 70660–50–3) in spherical beads with a mean particle size between 0.425 and 1.20 mm (provided for in subheading