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
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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