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Hydroxypropyl Methylcellulose (HPMC) from Japan

Hydroxypropyl methylcellulose is an inert, viscoelastic polysaccharide derived from cellulose through etherification, widely used in pharmaceuticals for capsule shells and controlled-release formulations. Classified under HTS 3913.90.20 as a modified natural polysaccharide in primary form like powder or granules.

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

Provide lab analysis confirming >95% cellulose-derived content to meet subheading note (a)(1) for polymer purity

Label shipments clearly as 'primary forms' to distinguish from finished dosage forms in Chapter 30

Avoid misclassification by ensuring no plasticizers exceed levels that trigger 3920.43 provisions