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HTS heading 2815: Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium

Heading 2815 of the US Harmonized Tariff Schedule covers Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium. 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 2815 at a glance

Goods named in this heading (official line texts): Solid, In aqueous solution (Soda lye or liquid soda), Potassium hydroxide (Caustic potash), Peroxides of sodium or potassium.

Subheadings (6-digit)

All tariff lines in heading 2815

LineDescriptionGeneralSection 301 (China)Exclusions
2815.11.00Sodium hydroxide (Caustic soda): SolidFreeList 3 +25%
2815.12.00In aqueous solution (Soda lye or liquid soda)FreeList 3 +25%
2815.20.00Potassium hydroxide (Caustic potash)FreeList 3 +25%
2815.30.00Peroxides of sodium or potassium3.7%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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