HTS 2818.10.20Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide:Artificial corundum, whether or not chemically defined: In grains, or ground, pulverized or refined

What that translates to:Artificial corundum in grains or ground

Also written 28181020. Rates as CBP is collecting them today. Updated Oct 1, 2026.

Country of origin

Artificial corundum in grains or ground (HTS 2818.10.20) from China owe 8.8% in total duties as of Oct 1, 2026: a 1.3% regular duty plus a 7.5% China tariff (Section 301).

Total duty rate8.8%That's $880 on a $10,000 shipment.

China tariffSection 301, since Feb 14, 20207.5%

Regular dutyBase rate (MFN) in the tariff schedule1.3%

Total duty8.8%

No forced-labor tariff on this product: it's on the tariff's exemption list (HTS 9903.05.86).

Sources: USITC Harmonized Tariff Schedule, Revision 20 (2026); USTR, Notice of Modification of Section 301 Action (List 4A cut to 7.5% from Feb 14, 2020), 85 FR 3741, Jan 22, 2020; HTS 9903.88.15.

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Official description

Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: Artificial corundum, whether or not chemically defined: In grains, or ground, pulverized or refined

Legal text from the Harmonized Tariff Schedule, Revision 20 (2026), chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes.

Statistical lines

The 10-digit numbers used on entry paperwork. They share this code's duty rates.

2818.10.2010 (2818102010)White, pink or ruby, containing more than 97.5 percent by weight of aluminum oxide · reported in kg
2818.10.2090 (2818102090)Other · reported in kg

What changed for this code

Jul 24, 2026Forced-labor tariffs start on imports from 60 economies (Section 301)
Jul 22, 202625% Section 301 tariff on products of Brazil starts
Jan 1, 2026Section 301 tariff on Nicaragua starts at 0%, set to rise to 10% in 2027 and 15% in 2028

Questions about HTS 2818.10.20

What is the duty rate for HTS 2818.10.20?

The regular (column 1 general) rate printed in the tariff schedule is 1.3%. Goods from China owe 8.8% in total as of Oct 1, 2026, including any additional tariffs. Additional tariffs depend on the country of origin; choose one above to see its full rate.

Is HTS 2818.10.20 subject to Section 301 tariffs?

Yes, for goods from 2 countries and territories as of Oct 1, 2026: China, Nicaragua. Choose a country above to see the rate and any exemptions.

Is HTS 2818.10.20 subject to Section 232 tariffs?

No Section 232 tariff applies to HTS 2818.10.20 as of Oct 1, 2026, from any country of origin.

HTSLookup shows the duties CBP collects on this code by country of origin. Antidumping or countervailing duties may also apply to some exporters; they're set per company and aren't shown.