Thermal Insulated Cork Wall Liners from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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