</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Methyl Methacrylate Monomer from China

Methyl methacrylate (MMA) is the methyl ester of methacrylic acid, a clear, volatile liquid used primarily in the production of acrylic polymers and resins. It falls under HTS 2916.14.20 as an 'other' ester of methacrylic acid, being an unsaturated acyclic monocarboxylic acid derivative. This chemically defined organic compound is essential for manufacturing PMMA plastics like Plexiglas.

Duty Rate — China → United States

41.2%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Verify purity levels and provide certificate of analysis (COA) to confirm classification as chemically defined compound per Chapter 29 notes

Ensure proper hazardous material documentation (UN 1247) for transport as flammable liquid; include stabilizer content details

Avoid misclassification as polymer by confirming <99% polymerization; test samples if bulk shipments vary