Carolina Ball Clay from Canada
Carolina ball clay from North Carolina is valued for electrical porcelain insulators due to its high fired strength and low electrical conductivity. Falls under HTS 2508.40.0110 as ball clay, uncalcined and suitable for high-voltage ceramics.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Electrical grade requires dielectric strength certification
• Avoid contamination during transshipment; purity critical for end-use
• Not to be confused with bentonite (HTS 2508.10) despite some swelling