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6815.91.00/Chromite Mullite Composite Refractories/Mexico

Chromite Mullite Composite Refractories from Mexico

Composite shapes blending chromite and mullite for glass tank regenerator checkerwork. Under HTS 6815.91.00 primarily for chromite component. High thermal cycling resistance.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Specify chromite >30% for 6815.91 qualification

• Glass tank documentation differentiates use

• Thermal expansion data supports classification

Chromite Mullite Composite Refractories from Mexico — Import Duty Rate | HTS 6815.91.00