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Low-Density Particleboard Insulation Panels from Japan

These fiberboard panels, made from wood particles bonded with resins, have a density between 0.35 and 0.5 g/cm³, classifying them under HTS 4411.94.00.40 as low-density fiberboard other than medium board. They are commonly used for wall insulation and soundproofing in construction. The specific density range distinguishes them from higher-density MDF or HDF products.

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

Obtain mill test certificates verifying density between 0.35-0.5 g/cm³ to avoid reclassification to higher density subheadings

Ensure documentation specifies 'other' fiberboard not qualifying as lauan/mixed heartwood to prevent misclassification