3921.11.00.00/Cellular PS Diffusion Plates/Japan

Cellular PS Diffusion Plates from Japan

Polystyrene foam sheets engineered as light diffusion panels for LED lighting fixtures. Under 3921.11.00.00 for cellular styrene sheets with light-scattering cellular structure. Used in commercial displays.

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

• Provide material safety data showing no additives affecting polymer classification

• Confirm cellular vs rigid via microscopy if challenged

• Size documentation critical for special rates