2903.29.00.00/1-Chloro-1,3-butadiene (Chloroprene)/Japan

1-Chloro-1,3-butadiene (Chloroprene) from Japan

Chloroprene (2-chloro-1,3-butadiene) is the conjugated diene monomer for polychloroprene (Neoprene) synthetic rubber. Classified HTS 2903.29.00.00 as unsaturated chlorinated acyclic hydrocarbon. Stabilized with phenolic antioxidants for storage and transport.

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%

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Import Tips

• Document polymerization inhibitor content to qualify stabilizer exception note 2(f)

• Comply with DOT Special Permit requirements for inhibited monomer transport

• Avoid classification disputes by specifying >99% monomer purity vs. polymer content