High-Alumina Refractory Firebrick from China
A refractory brick containing over 50% alumina (Al2O3), fired after shaping for high-temperature resistance in furnaces and kilns. Classified under HTS 6902.20.10.20 as 'other' bricks made from alumina-silica mixtures, designed for constructional use in industrial heating equipment. Meets Chapter 69 requirements for fired ceramic goods excluding those in headings 6901-6903.
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
• Verify chemical composition certificate showing >50% Al2O3 or SiO2 to confirm classification under 6902.20
• Provide firing temperature documentation (>800°C) to distinguish from non-fired ceramic articles excluded from Chapter 69
• Avoid common pitfalls like importing unshaped mixes, which fall under Chapter 28 chemicals rather than finished refractory goods