Indole-3-Acetic Acid from Japan
Indole-3-acetic acid (auxin) is a plant growth regulator with carboxylic acid function on the indole core, classified under HTS 2933.99.0500 as an indole derivative. The heterocyclic structure takes precedence over the acid function per Chapter 29 notes.
Duty Rate — Japan → United States
27.5%
Rate breakdown
9903.04.6215%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Carboxylic acid function subordinate to named heterocycle per Chapter 29 note on function precedence
• Include EPA registration if marketed as pesticide; technical grade stays in Chapter 29