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Lactam (Beta-Propiolactam) from Japan

Beta-propiolactam is a strained four-membered ring acyclic lactam amide used in polymer production like nylon precursors. Despite ring structure, classifies as acyclic amide derivative under HTS 2924.19.11. Chemically defined per chapter notes excluding certain heterocycles.

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

Handle as CMR substance with UN 3386 labeling; obtain prior EPA approval for TSCA import; test for ring-opening impurities affecting purity classification

Lactam (Beta-Propiolactam) from Japan — Import Duty Rate | HTS 2924.19.11