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2903.43.10.00/HFC-152a Foam Expansion Agent/Japan

HFC-152a Foam Expansion Agent from Japan

HFC-152a drives the expansion of polystyrene foams used in packaging and construction insulation. Under HTS 2903.43.10.00, it is the pure 1,1-difluoroethane compound per tariff specificity. It offers zero ozone depletion potential.

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

• Verify Montreal Protocol phase-out status; stabilizer additives declared

• Pitfall: Reactive impurities can cause foam defects post-import

HFC-152a Foam Expansion Agent from Japan — Import Duty Rate | HTS 2903.43.10.00