4411.94.00.50/Bitumen-Impregnated Low-Density Fiberboard Sheathing Panels/China

Bitumen-Impregnated Low-Density Fiberboard Sheathing Panels from China

These are low-density fiberboard panels (density ≤0.5 g/cm³) made from wood fibers, impregnated with bitumen for water resistance, used primarily as exterior sheathing in construction. They fall under HTS 4411.94.0050 because they are not mechanically worked or surface-covered beyond the bitumen impregnation, meeting the specific criteria for this subheading. The bitumen treatment provides essential protection against moisture without altering the base material's classification.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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Import Tips

• Verify density certification from manufacturer to confirm ≤0.5 g/cm³ compliance; obtain bitumen impregnation documentation for Customs review

• Ensure no mechanical working or surface coverings to avoid reclassification

• Common pitfall: mislabeling as higher-density board leading to duty adjustments