chloride (provided for in subheading 2811.22.10) Free No change No change On or before 12/31/2025 . 11020. Dioxosilane spherical particles (mean particle size 0.046–0.054 mm) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.20 Dioxosilane (silicon dioxide amorphous) (CAS No. 7631–86–9) presented in the form of entirely spherical micro-spheres, certified by the importer as having a mean particle size of between 0.046 and 0.054 mm, uniform particle size with a uniformity coefficient of 1.65 or less, specific electrical resistance of 50,000 Ohm cm or more, and surface area 300 to 700 m²/g (provided for in subheading 2811.22.10) Free No change No change On or before 12/31/2025 . 11021. Silica gel cat litter Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.21 Cat litter formulated from synthetic silica gel, put up for retail sale (provided for in subheading 2811.22.10) Free No change No change On or before 12/31/2025 . 11022. Sulfuryl dichloride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.22 Sulfuryl dichloride (CAS No. 7791–25–5) (provided for in subheading 2812.19.00) Free No change No change On or before 12/31/2025 . 11023. FS-10D acicular electroconductive tin oxide Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.23 Dispersions of tin(IV) oxide (CAS No. 18282–10–5), doped with antimony pentoxide (CAS No. 1314–60–9), in water (provided for in subheading 2825.90.20) Free No change No change On or before 12/31/2025 . 11024. Certain potassium fluoride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.24 Potassium fluoride (CAS No. 7789–23–3), spray-dried, crystalline, granular or any dry form (provided for in subheading 2826.19.90) Free No change No change On or before 12/31/2025 . 11025. Other potassium fluoride