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HTS lookup › Chapter 38 › Heading 3815

HTS 3815.90 (3815.90.00) duty rate

3815.90.00 is not a rated tariff line. Subheading 3815.90 (Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included › Other) is split into 4 tariff lines, and the duty rate depends on which one your product falls under:

LineDescriptionGeneralSection 301 (China)Exclusions
3815.90.10Of bismuth, of tungsten or of vanadium6.5%List 3 +25%
3815.90.20Consisting wholly of inorganic substances: Of mercury or of molybdenum2.8%List 3 +25%
3815.90.30Consisting wholly of inorganic substances: OtherFreeList 3 +25%
3815.90.50Other: Other5%List 3 +25%

Open the line that matches your product for its full rate table, Section 301 actions, exclusions, statistical suffixes and a free duty calculator.

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

Subheading 3815.90 at a glance

Heading 3815 · Chapter 38 · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC); not legal or customs advice. Classification is decided by CBP.

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