2606.00.00.30—Refractory grade
General
Free
Units
t
Column 2
$1/t
Special
—
Tandom · Duty calculator
2606.00.00.30—Refractory gradeGeneral
Free
Units
t
Column 2
$1/t
Special
—
Tandom · Duty calculator
Add country and invoice value for the full duty stack — base + 301 + 232 + AD/CVD + fees.
HTS 2606.00.00.30 is the U.S. Harmonized Tariff Schedule classification for Refractory grade. It's a 10-digit statistical line in Chapter 26: Ores, slag and ash, Section V: Mineral Products, used by U.S. Customs and Border Protection to determine the duty rate at entry. 1 Chapter 99 tariff modification currently stacks on top of the base rate.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.91.01 | section_301 | The duty provided in the applicable subheading + 25% |
HTS 2606.00.00.30 is the U.S. Harmonized Tariff Schedule classification for Refractory grade. It belongs to Chapter 26 of the HTSUS.
The general (Column 1) duty rate for HTS 2606.00.00.30 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 2606.00.00.30 is $1/t. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 2606.00.00.30 is covered by section_301 provision 9903.91.01 (The duty provided in the applicable subheading + 25%). Open the code page for the full overlay stack with effective dates and country scopes.
No active AD/CVD orders currently flag HTS 2606.00.00.30 in Tandom's catalog. Tandom monitors Federal Register notices daily; a flag will appear here within 24h of any new order's publication.
Tandom guides relevant to this code
How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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