70% Alumina Refractory Checker Brick from China
Perforated checker bricks with 70% Al2O3 for regenerator chambers in glass furnaces, promoting heat recovery. High-fired ceramic blocks meeting Chapter 69 firing requirements. Under HTS 6902.20.50.20 for high alumina-silica refractory construction goods.
Duty Rate — China → United States
37.5%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit thermal conductivity data to support regenerator end-use and refractory classification
• Certify no organic binders remain post-firing to comply with Chapter 69 note (b)