6902.20.50.20/70% Alumina Refractory Checker Brick/Japan

70% Alumina Refractory Checker Brick from Japan

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 — 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%

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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)