2818

4-digit heading

Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide

This is a 4-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.

Duty rates

No rate is published at this level — check the specific 10-digit statistical code beneath it.

Duty rates for HTS 2818
Rate	Value and what it means
General rate (Column 1)	See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate.
Special rate (Column 1)	—Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate.
Column 2 rate	—Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it.
Unit of quantity	— How CBP expects the quantity to be reported on the entry summary.

Estimate duty for this code

Codes within Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide

7 more specific lines fall under 2818.

Chapter 28: Inorganic Chemicals; Compounds of Precious Metals and Rare-Earths

Browse every code in this chapter to compare neighbouring classifications.

View Chapter 28

Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.

Data loaded August 18, 2026.Check this chapter on hts.usitc.gov Report an error with this code How this data is built