Tripropylene Glycol from Japan
Tripropylene glycol is an acyclic triol oligomer used as a reactive diluent in polyurethanes and epoxy resins, falling under HTS 2905.39.90.00 as an 'other' acyclic alcohol derivative. Its propoxylated structure maintains diol-like reactivity.
Duty Rate — Japan → United States
22%
Rate breakdown
9903.04.629.5%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
• Specify exact oligomer distribution (monodisperse vs polydisperse) in technical data
• Distinguish from unreactive polypropylene glycol (Chapter 39)
• Provide viscosity and hydroxyl number confirming reactive diol nature