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2508.30.00.00/Dinas Fire-Clay Earth/Canada

Dinas Fire-Clay Earth from Canada

Dinas earths are siliceous fire-clays used in high-temperature silica bricks for coke ovens. Classified under HTS 2508.30.00.00 as fire-clay variants like chamotte or dinas. Known for low flux content and purity.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Certify silica content (88-98%) to differentiate from alumina fire-clays

• Avoid bulk shipments mixed with mullite, risking subheading disputes

• Ensure no prior agglomeration, as built-up products go to 6815

Dinas Fire-Clay Earth from Canada — Import Duty Rate | HTS 2508.30.00.00