Bitumen Impregnated Low-Density Fiberboard Panels from China

Low-density fiberboard (LDF) panels with density between 0.35-0.5 g/cm³, made from wood fibers bonded with resins and impregnated with bitumen for water resistance. Classified under HTS 4411.94.00.10 as fiberboard not mechanically worked or surface covered, specifically impregnated with bitumen. Used primarily in construction for underlayment and roofing substrates.

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)

Import Tips

Verify density certification (0.35-0.5 g/cm³) and bitumen impregnation content via lab testing to confirm HTS 4411.94.00.10 classification

Provide manufacturer's specs confirming no mechanical working or surface covering; surface-covered variants shift to other subheadings

Include origin certificates as wood products may face Lacey Act declarations and phytosanitary requirements