Harmonized Tariff Schedule of the United States · HTS code · HS 2818.30
2818.30.00: Aluminium hydroxide: Artificial corundum, whether or not chemically defined: aluminum hydroxide
Aluminium hydroxide
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 2818 Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide:
- 2818.30.00 Aluminum hydroxide
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 1
- Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 25%
- Applies to goods from
- China
- In force
- from 24 September 2018
- Legal act
- HTSUS 9903.88.03
Same subheading in other tariffs
2818.30 Artificial corundum, whether or not chemically defined: aluminium hydroxide
UK Free – 4% Third-country duty 3 tariff lines · average 2.7% 
EU 5.5% Third-country duty 1 tariff line 
Türkiye 5.5% Third-country duty 1 tariff line 
Canada Free General (MFN) 1 tariff line 
Mexico Free General (MFN) 2 tariff lines 
Brazil Free General (MFN) 1 tariff line 
Argentina Free General (MFN) 1 tariff line 
Peru Free General (MFN) 1 tariff line 
New Zealand Free General (MFN) 1 tariff line 
Japan Free General (MFN) 1 tariff line 
Taiwan 3% General (MFN) 1 tariff line 
GCC 5% General (MFN) 1 tariff line 
Switzerland Free General (MFN) 1 tariff line 
Norway Free General (MFN) 1 tariff line 
North Macedonia Free General (MFN) 1 tariff line 
Nigeria 5% General (MFN) 1 tariff line Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N337061 U.S. CBP
The tariff classification of Aluminum Hydroxide, CAS # 21645-51-2, from Canada
Legal notes
HTS code 2818.30.00 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 2818.30 (artificial corundum, whether or not chemically defined: aluminium hydroxide).
The general duty is free, and quantities are declared in kg.
For the same subheading, the UK duty is 0%–4%, the EU duty is 5.5%, the Türkiye duty is 5.5%, the Canada duty is free, the Mexico duty is free, the Brazil duty is free, the Argentina duty is free, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is 3%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is free and the Nigeria duty is 5%.
The United States imported goods of subheading 2818.30 worth US$250m in 2024; the largest supplier was Brazil.
Questions and answers
What is the USA import duty for HTS code 2818.30.00?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is kg. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 2818.30 as a whole, the largest supplier in 2024 was Brazil (US$114m), followed by Canada.
Typical products
Everyday names, not part of the legal text.