NOW FOR USA HTS Harmonized Tariff Schedule (2024 HTS Revision 9)
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Harmonized Tariff Schedule (2024 HTS Revision 9)

Heading Duty(general) Duty(china) Article Description Compare Code
2805.30.00.50 5%    Other --
2805.30.00.90 5%    Other vs-2805300050
2805.40.00.00 1.7%  The duty provided in the applicable subheading + 25%  Mercury
II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NONMETALS
vs-2805300090
2806     Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid: vs-2805400000
2806.10.00.00 Free  The duty provided in the applicable subheading + 25%  Hydrogen chloride (Hydrochloric acid) vs-2806
2806.20.00.00 4.2%  The duty provided in the applicable subheading + 25%  Chlorosulfuric acid vs-2806100000
2807.00.00.00 Free  The duty provided in the applicable subheading + 25%  Sulfuric acid; oleum vs-2806200000
2808.00.00 Free  The duty provided in the applicable subheading + 25%  Nitric acid; sulfonitric acids vs-2807000000
2808.00.00.10 Free  The duty provided in the applicable subheading + 25%  Nitric acid vs-28080000
2808.00.00.20 Free  The duty provided in the applicable subheading + 25%  Sulfonitric acids vs-2808000010
2809     Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined: vs-2808000020
2809.10.00.00 Free  The duty provided in the applicable subheading + 25%  Diphosphorus pentaoxide vs-2809
2809.20.00 Free  The duty provided in the applicable subheading + 25%  Phosphoric acid and polyphosphoric acids
Phosphoric acid:
Fertilizer grade:
vs-2809100000
2809.20.00.10 Free  The duty provided in the applicable subheading + 25%  Containing less than 65 percent available diphosphorus pentaoxide (P2O5) equivalents vs-28092000
2809.20.00.20 Free  The duty provided in the applicable subheading + 25%  Other vs-2809200010
2809.20.00.30 Free  The duty provided in the applicable subheading + 25%  Other vs-2809200020
2809.20.00.40 Free  The duty provided in the applicable subheading + 25%  Polyphosphoric acids vs-2809200030
2810.00.00.00 1.5%  The duty provided in the applicable subheading + 25%  Oxides of boron; boric acids vs-2809200040
2811     Other inorganic acids and other inorganic oxygen compounds of nonmetals:
Other inorganic acids:
vs-2810000000
2811.11.00.00 Free  The duty provided in the applicable subheading + 25%  Hydrogen fluoride (Hydrofluoric acid) vs-2811