💾 Data Updated: 2025 HTS Revision 30 • Last updated: November 24, 2025

6903.10.00.00 - Containing by weight more than 50 percent of free carbon

Details

FieldValue
Unit of Quantitykg
General Rate of DutyFree
Special Rate of DutyN/A
Column 2 Rate of Duty45%
Quota QuantityN/A
Additional DutiesN/A

Overview

This HTS category, 6903.10.00.00, specifically covers "other refractory ceramic goods" that are characterized by containing more than 50 percent by weight of free carbon. These goods are designed to withstand high temperatures and chemical attack, making them suitable for industrial applications such as furnace linings, crucibles for melting metals, and components in chemical processing equipment where carbon's unique refractory properties are essential.

This classification is distinguished from its siblings by its primary constituent material. While 6903.20.00.00 focuses on refractory ceramics with high alumina content, and 6903.90.00 encompasses all other miscellaneous refractory ceramic products not otherwise specified, 6903.10.00.00 is exclusively for those where free carbon is the dominant component, dictating their specific thermal and chemical resistance characteristics.

As this is a leaf node within the HTS structure, there are no further subcategories under 6903.10.00.00. Therefore, the classification of goods within this heading relies entirely on the precise determination of whether they are refractory ceramic articles and if they meet the stipulated threshold of containing more than 50 percent by weight of free carbon.

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