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
2814     Ammonia, anhydrous or in aqueous solution: --
2814.10.00.00 Free  The duty provided in the applicable subheading + 25%  Anhydrous ammonia vs-2814
2814.20.00.00 Free  The duty provided in the applicable subheading + 25%  Ammonia in aqueous solution vs-2814100000
2815     Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:
Sodium hydroxide (Caustic soda):
vs-2814200000
2815.11.00.00 Free  The duty provided in the applicable subheading + 25%  Solid vs-2815
2815.12.00.00 Free  The duty provided in the applicable subheading + 25%  In aqueous solution (Soda lye or liquid soda) vs-2815110000
2815.20.00 Free  The duty provided in the applicable subheading + 25%  Potassium hydroxide (Caustic potash) vs-2815120000
2815.20.00.50 Free  The duty provided in the applicable subheading + 25%  In solid form vs-28152000
2815.20.00.90 Free  The duty provided in the applicable subheading + 25%  Other vs-2815200050
2815.30.00.00 3.7%  The duty provided in the applicable subheading + 25%  Peroxides of sodium or potassium vs-2815200090
2816     Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium: vs-2815300000
2816.10.00.00 3.1%  The duty provided in the applicable subheading + 25%  Hydroxide and peroxide of magnesium vs-2816
2816.40     Oxides, hydroxides and peroxides, of strontium or barium: vs-2816100000
2816.40.10.00 4.2%  The duty provided in the applicable subheading + 25%  Of strontium vs-281640
2816.40.20.00 2%    Of barium vs-2816401000
2817.00.00.00 Free  The duty provided in the applicable subheading + 25%  Zinc oxide; zinc peroxide vs-2816402000
2818     Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: vs-2817000000
2818.10     Artificial corundum, whether or not chemically defined: vs-2818
2818.10.10.00 Free  The duty provided in the applicable subheading + 7.5%  Crude vs-281810
2818.10.20 1.3%  The duty provided in the applicable subheading + 7.5%  In grains, or ground, pulverized or refined vs-2818101000