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
3815.90.50.00 5%  The duty provided in the applicable subheading + 25%  Other --
3816     Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801: vs-3815905000
3816.00.10.00 Free    Dolomite ramming mix vs-3816
3816.00.20 3%    Other vs-3816001000
3816.00.20.10 3%    Clay vs-38160020
3816.00.20.50 3%    Other vs-3816002010
3817     Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902:
Mixed alkylbenzenes:
vs-3816002050
3817.00.10.00 6.5%  The duty provided in the applicable subheading + 25%  Mixed linear alkylbenzenes vs-3817
3817.00.15.00 6.5%  The duty provided in the applicable subheading + 25%  Other vs-3817001000
3817.00.20.00 6.5%  The duty provided in the applicable subheading + 25%  Mixed alkylnaphthalenes vs-3817001500
3818.00.00 Free  The duty provided in the applicable subheading + 25%  Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics vs-3817002000
3818.00.00.10 Free  The duty provided in the applicable subheading + 25%  Gallium arsenide wafers, doped vs-38180000
3818.00.00.20 Free  The duty provided in the applicable subheading + 25%  Polycrystalline silicon wafers, doped vs-3818000010
3818.00.00.30 Free  The duty provided in the applicable subheading + 25%  Silicon carbide wafers, doped vs-3818000020
3818.00.00.95 Free  The duty provided in the applicable subheading + 25%  Other vs-3818000030
3819.00.00 6.5%  The duty provided in the applicable subheading + 25%  Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous minerals vs-3818000095
3819.00.00.10 6.5%  The duty provided in the applicable subheading + 25%  Hydraulic brake fluids vs-38190000
3819.00.00.90 6.5%  The duty provided in the applicable subheading + 25%  Other vs-3819000010
3820.00.00.00 6.5%  The duty provided in the applicable subheading + 7.5%  Antifreezing preparations and prepared deicing fluids vs-3819000090
3821.00.00 5%    Prepared culture media for development or maintenance of micro-organisms (including viruses and the like) or of plant, human or animal cells vs-3820000000