</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2813.90.20.00/Synthetic Phosphorus Trisulfide Crystals/Japan

Synthetic Phosphorus Trisulfide Crystals from Japan

Laboratory-synthesized P4S3 crystals for research in inorganic chemistry. Still classified under HTS 2813.90.20.00 as chemically defined nonmetal sulfide.

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%
Calculate with your customs valueVerify classification with AI

Import Tips

• Include synthesis method documentation; small quantities may qualify for lab exemptions