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Home > HTS Codes > Chapter 28 > 2811

Custom Duty Rate for HTS Code 2811 : Inorganic acids and inorganic oxygen compounds of non-metals (excluding hydrogen chloride "hydrochloric acid", chlorosulphuric acid, sulphuric acid, oleum, nitric acid, sulphonitric acids, diphosphorus pentaoxide, phosphoric acid, polyphosphoric acids, oxides of boron and boric acids)

Heading/SubheadingArticle DescriptionUnit of QuantityRates of Duty
12
GeneralSpecial
2811.11Hydrogen fluoride "hydrofluoric acid"
2811.11.00.00Inorganic acids consisting of hydrogen fluoride also known as hydrofluoric acidkgFreeFree
2811.12Hydrogen cyanide "hydrocyanic acid"
2811.12.00.00Inorganic acids consisting of hydrogen cyanide also known as hydrocyanic acidkg0.00%Free (A,AU,BH,CA,CL,CO,D,E,IL,JO,KR,MA,MX,OM,P,PA,PE,S,SG)30.00%
2811.19Inorganic acids (excluding hydrogen chloride "hydrochloric acid", chlorosulphuric acid, sulphuric acid, oleum, nitric acid, sulphonitric acids, phosphoric acid, polyphosphoric acids, boric acids and hydrogen fluoride "hydrofluoric acid")
2811.19.10.00Inorganic acids consisting of arsenic acidkg0.00%Free (A,AU,BH,CA,CL,CO,D,E,IL,JO,KR,MA,MX,OM,P,PA,PE,S,SG)0.00%
2811.19.30.00Inorganic acids consisting of hydrobromic acidkgFree30.00%
2811.19.61Inorganic acids excluding hydrogen fluoride, hydrogen cyanide, arsenic acid, and hydrobromic acid0.00%Free (A,AU,BH,CA,CL,CO,D,E,IL,JO,KR,MA,MX,OM,P,PA,PE,S,SG)30.00%
2811.19.61.10Inorganic acids consisting of sulfamic acidkg
2811.19.61.90Inorganic acids excluding hydrogen fluoride, hydrogen cyanide, arsenic acid, hydrobromic acid, and sulfamic acidkg
2811.21Carbon dioxide
2811.21.00.00Inorganic oxygen compounds of nonmetals consisting of carbon dioxidet0.00%Free (A,AU,BH,CA,CL,CO,D,E,IL,JO,KR,MA,MX,OM,P,PA,PE,S,SG)30.00%
2811.22Silicon dioxide
2811.22.10.00Inorganic oxygen compounds of nonmetals consisting of synthetic silica gelkg0.00%Free (A*,AU,BH,CA,CL,CO,D,E,IL,JO,KR,MA,MX,OM,P,PA,PE,S,SG)30.00%
2811.22.50.00Inorganic oxygen compounds of nonmetals consisting of silicon dioxide excluding synthetic silica gelkgFreeFree
2811.29Inorganic oxygen compounds of non-metals (excluding diphosphorus pentaoxide, oxides of boron, carbon dioxide and silicon dioxide)
2811.29.10.00Inorganic oxygen compounds of nonmetals consisting of arsenic trioxidekgFreeFree
2811.29.20.00Inorganic oxygen compounds of nonmetals consisting of selenium dioxidekgFreeFree
2811.29.30.00Inorganic oxygen compounds of nonmetals consisting of sulfur dioxidekg0.00%Free (A,AU,BH,CA,CL,CO,D,E,IL,JO,KR,MA,MX,OM,P,PA,PE,S,SG)30.00%
2811.29.50.00Inorganic oxygen compounds of nonmetals excluding carbon dioxide, silicon dioxide, arsenic trioxide, selenium dioxide, and sulfur dioxidekg0.00%Free (A,AU,BH,CA,CL,CO,D,E,IL,JO,KR,MA,MX,OM,P,PA,PE,S,SG)30.00%

Disclaimer: The HTS code data and duty rates shown on this page are sourced from the Harmonized Tariff Schedule of the United States, Revision 15 (2025), published by the U.S. International Trade Commission (USITC). This information is provided for general reference purposes only. Credlix is a trade finance platform, not a licensed customs broker, freight forwarder, or trade law firm. It makes no warranty, express or implied, regarding the accuracy, completeness, or fitness of this data. Always verify against the latest schedule at hts.usitc.gov before making any import decisions.

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