High-Alumina Fire-Clay from China
High-alumina fire-clay contains over 40% Al2O3, ideal for severe thermal shock in steel plant refractories. It is classified in HTS 2508.30.00.00 as fire-clay, excluding expanded forms per chapter notes. Supplied in bulk for mixer plants.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit chemical assays showing Al2O3 >30% to Customs for fire-clay verification
• Label as 'not expanded' explicitly to comply with exclusions in statistical notes
• Segregate from andalusite/kyanite shipments, as those have separate 2508 subheadings