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HTS heading 2837: Cyanides, cyanide oxides and complex cyanides

Heading 2837 of the US Harmonized Tariff Schedule covers Cyanides, cyanide oxides and complex cyanides. 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 2837 at a glance

Goods named in this heading (official line texts): Of sodium, Potassium ferricyanide.

Subheadings (6-digit)

All tariff lines in heading 2837

LineDescriptionGeneralSection 301 (China)Exclusions
2837.11.00Cyanides and cyanide oxides: Of sodiumFreeList 3 +25%
2837.19.01Cyanides and cyanide oxides: OtherFreeList 4A +7.5%
2837.20.10Complex cyanides: Potassium ferricyanide1.1%List 3 +25%
2837.20.51Complex cyanides: Other1.7%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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