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

Nylon-12 Monomer Laurolactam from China

High-purity laurolactam specifically marketed as the monomer for nylon-12 polymer production, a 12-carbon lactam ring compound. Falls precisely under HTS 2933.79.40.00 as 12-aminododecanoic acid lactam, distinct from other lactams. Used in 3D printing filaments and engineering plastics.

Duty Rate — China → United States

37.5%

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

Label shipments clearly as '12-Aminododecanoic acid lactam' to match exact subheading; generic 'lactam' risks audit

Comply with DOT/ADR transport regulations for solid organic compounds; obtain import permit if destined for chemical plants