4503.90.40.00/Thermal Insulated Cork Wall Liners/Canada

Thermal Insulated Cork Wall Liners from Canada

Thin natural cork liners backed with paper for thermal regulation behind wall finishes in energy-efficient buildings. Covered by HTS 4503.90.40.00 as reinforced wallcoverings of natural cork. The paper allows for stapling or gluing directly to wall studs.

Duty Rate — Canada → United States

10%

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
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Import Tips

• Obtain R-value certifications to support insulation claims without shifting to Chapter 68 building materials

• Ensure 'wallcovering' intent in commercial docs; construction use may trigger different rulings

• Test for mold resistance in humid climates, as CBP may inspect for agricultural risks

Thermal Insulated Cork Wall Liners from Canada — Import Duty Rate | HTS 4503.90.40.00