Cork-Rubber Thermal Insulation Slab from Japan
Dense slab of vulcanized ground cork and rubber for thermal barriers in HVAC systems and building envelopes. Classified in HTS 4504.10.10.00 for its composition solely of pulverized cork and rubber in slab configuration.
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 R-value certifications for customs valuation and end-use verification
• Avoid bulk packaging over 1m² to prevent 'tile' misclassification
• Declare exact cork/rubber ratio to preempt binder content disputes