6901.00.00.00/Tripolite Ceramic Block/Japan

Tripolite Ceramic Block from Japan

Heavy-duty ceramic block made from tripolite, a siliceous fossil earth similar to diatomite, used in furnace construction. HTS 6901.00.00.00 covers such goods explicitly including 'similar siliceous earths' that are shaped and fired.

Duty Rate — Japan → 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

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Import Tips

• Submit geological source documentation proving tripolite origin as a siliceous fossil meal

• Declare exact firing temperature (>800°C) to distinguish from cured resin products excluded by Chapter notes

• Use separate invoices for mixed fossil meal/clay shipments to avoid misclassification