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Harmonized Tariff Schedule (2026 HTS Revision 4 (02/25/2026))

Heading Duty(general) Duty(china) Article Description Compare Code
2811.22     Silicon dioxide: --
2811.22.10.00 3.7%  The duty provided in the applicable subheading + 25%  Synthetic silica gel vs-281122
2811.22.50.00 Free  The duty provided in the applicable subheading + 25%  Other vs-2811221000