NOW FOR USA HTS Harmonized Tariff Schedule (2025 Basic Edition)
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Harmonized Tariff Schedule (2025 Basic Edition)

Heading Duty(general) Duty(china) Article Description Compare Code
2836.91.00.10 3.7%  The duty provided in the applicable subheading + 25%  U.S.P. grade --
2836.91.00.50 3.7%  The duty provided in the applicable subheading + 25%  Other vs-2836910010
2836.92.00.00 4.2%  The duty provided in the applicable subheading + 25%  Strontium carbonate vs-2836910050
2836.99     Other: vs-2836920000
2836.99.10.00 4.2%  The duty provided in the applicable subheading + 25%  Cobalt carbonates vs-283699
2836.99.20.00 5.5%  The duty provided in the applicable subheading + 25%  Bismuth carbonate vs-2836991000
2836.99.30.00 1.7%  The duty provided in the applicable subheading + 25%  Commercial ammonium carbonate and other ammonium carbonates vs-2836992000
2836.99.40.00 0.5%  The duty provided in the applicable subheading + 25%  Lead carbonates vs-2836993000
2836.99.50.00 3.7%  The duty provided in the applicable subheading + 25%  Other vs-2836994000
2837     Cyanides, cyanide oxides and complex cyanides:
Cyanides and cyanide oxides:
vs-2836995000
2837.11.00.00 Free  The duty provided in the applicable subheading + 25%  Of sodium vs-2837
2837.19.01 Free  The duty provided in the applicable subheading + 7.5%  Other vs-2837110000
2837.19.01.10 Free  The duty provided in the applicable subheading + 7.5%  Potassium cyanide vs-28371901
2837.19.01.15 Free  The duty provided in the applicable subheading + 7.5%  Calcium cyanide vs-2837190110
2837.19.01.25 Free  The duty provided in the applicable subheading + 7.5%  Other vs-2837190115
2837.20     Complex cyanides: vs-2837190125
2837.20.10.00 1.1%  The duty provided in the applicable subheading + 25%  Potassium ferricyanide vs-283720
2837.20.51.00 1.7%  The duty provided in the applicable subheading + 25%  Other vs-2837201000
2839     Silicates; commercial alkali metal silicates:
Of sodium:
vs-2837205100
2839.11.00.00 1.1%  The duty provided in the applicable subheading + 25%  Sodium metasilicates vs-2839