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3912.39.00.00/Hydroxypropyl Methylcellulose (HPMC)/Mexico

Hydroxypropyl Methylcellulose (HPMC) from Mexico

HPMC is a semisynthetic cellulose ether combining hydroxypropyl and methyl groups, widely used in pharmaceuticals, construction mortars, and vegan capsules. Under HTS 3912.39.00.00 as other cellulose ethers, classified by predominant monomer units per chapter notes.

Duty Rate — Mexico → United States

14.2%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Submit monomer composition analysis showing >95% qualifying units; segregate pharma vs construction grades for proper documentation; beware of origin marking requirements

Hydroxypropyl Methylcellulose (HPMC) from Mexico — Import Duty Rate | HTS 3912.39.00.00