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N-Ethyl Perfluorooctane Sulfonamide with Stabilizer from Japan

This is N-ethyl perfluorooctane sulfonamide formulated with an added stabilizer for preservation during transport, maintaining its identity as a chemically defined organic compound. Classified under HTS 2935.20.00.00 per Chapter 29 note (f), as the stabilizer is necessary and does not change its general chemical use. Commonly used in producing water-resistant coatings and as a PFAS intermediate.

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

Document stabilizer composition in SDS to prove necessity for preservation per Chapter 29 note (f); excess additives risk reclassification

Comply with TSCA Import Certification for PFAS; declare as new chemical if not on inventory

Label containers clearly for safety/emetic additions under note (g) to avoid customs delays