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HTS heading 2833: Sulfates; alums; peroxosulfates (persulfates)

Heading 2833 of the US Harmonized Tariff Schedule covers Sulfates; alums; peroxosulfates (persulfates). Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.

Official USITC HTS, 2026HTSRev22 · check on hts.usitc.gov

Heading 2833 at a glance

Goods named in this heading (official line texts): Salt cake, Of magnesium, Of aluminum, Of nickel, Of copper, Of barium, Of cobalt, Of iron, Of vanadium, Of chromium, Of zinc, Alums, Of sodium.

Subheadings (6-digit)

All tariff lines in heading 2833

LineDescriptionGeneralSection 301 (China)Exclusions
2833.11.10Disodium sulfate: Salt cakeFreeList 3 +25%
2833.11.50Disodium sulfate: Other0.4%List 3 +25%
2833.19.00Sodium sulfates: OtherFreeList 3 +25%
2833.21.00Other sulfates: Of magnesium3.7%List 3 +25%
2833.22.00Other sulfates: Of aluminumFreeList 3 +25%
2833.24.00Other sulfates: Of nickel3.2%List 3 +25%
2833.25.00Other sulfates: Of copper1.4%List 3 +25%
2833.27.00Other sulfates: Of barium0.6%List 3 +25%
2833.29.10Other: Of cobalt1.4%List 3 +25%
2833.29.20Other: Of ironFreeList 3 +25%
2833.29.30Other: Of vanadium5.5%List 3 +25%
2833.29.40Other: Of chromium3.7%List 3 +25%
2833.29.45Other: Of zinc1.6%List 3 +25%
2833.29.51Other: Other3.7%List 3 +25%
2833.30.00Sulfates; alums; peroxosulfates (persulfates): Alums1.6%List 3 +25%
2833.40.20Peroxosulfates (persulfates): Of sodium3.7%List 3 +25%
2833.40.60Peroxosulfates (persulfates): Other3.1%List 3 +25%

All of chapter 28 · Chapter 28 rate summary · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.

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