Harmonized Tariff Schedule of the United States · HTS code · HS 6903.20

6903.20.00

6903.20.00: Alumina refractory goods (other): Containing by weight more than 50 percent of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)

Alumina refractory goods (other)

Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026

  1. 6903 Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths:
  2. 6903.20.00 Containing by weight more than 50 percent of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)

What you pay

Importing into USA

Customs duty Free standard rate depends on the country of origin
Additional duties and charges 2 additional measures
VAT no federal VAT; a Merchandise Processing Fee of 0.3464 % is charged on formal entries
Duty calculatorCalculate duty and taxes →

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 2

  • 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
  • Additional dutyRussia rate increase (Pub. L. 117-110) — Russian Federation (rates in lieu of column 2) 35%
    Applies to goods from
    Russia
    In force
    from 28 June 2022
    Legal act
    HTSUS 9903.90.08

Footnotes

  • 9903.90.08 Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter

Same subheading in other tariffs

6903.20 Containing, by weight, more than 50 % of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)

UK 4% Third-country duty 2 tariff lines EU 5% Third-country duty 2 tariff lines Türkiye 5% Third-country duty 4 tariff lines Canada Free Third-country duty 1 tariff line Mexico Free Third-country duty 4 tariff lines Brazil 9% Third-country duty 4 tariff lines Argentina 9% Third-country duty 4 tariff lines Peru Free Third-country duty 2 tariff lines New Zealand 5% Third-country duty 3 tariff lines Japan 3.5% Third-country duty 1 tariff line Taiwan 6.8% Third-country duty 3 tariff lines GCC 5% Third-country duty 1 tariff line Switzerland Free Third-country duty 1 tariff line Norway Free Third-country duty 1 tariff line North Macedonia 3% Third-country duty 2 tariff lines Nigeria 20% Third-country duty 1 tariff line

Legal notes

Notes

1. This chapter applies only to ceramic products which have been fired after shaping:

  1. (a) headings 6904 to 6914 apply only to such products other than those classifiable in headings 6901 to 6903;

  2. (b) articles heated to temperatures less than 800 °C for purposes such as curing of resins, accelerating hydration reactions, or for the removal of water or other volatile components, are not considered to be fired. Such articles are excluded from Chapter 69; and

  3. (c) ceramic articles are obtained by firing inorganic, non-metallic materials which have been prepared and shaped previously at, in general, room temperature. Raw materials comprise, inter alia, clays, siliceous materials including fused silica, materials with a high melting point, such as oxides, carbides, nitrides, graphite or other carbon, and in some cases binders such as refractory clays or phosphates.

2. This chapter does not cover:

  1. (a) products of heading 2844;

  2. (b) articles of heading 6804;

  3. (c) articles of Chapter 71 (for example, imitation jewellery);

  4. (d) cermets of heading 8113;

  5. (e) articles of Chapter 82;

  6. (f) electrical insulators (heading 8546) or fittings of insulating material of heading 8547;

  7. (g) artificial teeth (heading 9021);

  8. (h) articles of Chapter 91 (for example, clocks and clock cases);

  9. (ij) articles of Chapter 94 (for example, furniture, luminaires and lighting fittings, prefabricated buildings);

  10. (k) articles of Chapter 95 (for example, toys, games and sports requisites);

  11. (l) articles of heading 9606 (for example, buttons) or of heading 9614 (for example, smoking pipes); or

  12. (m) articles of Chapter 97 (for example, works of art).

Chapter notes: Chapter 69 →

HTS code 6903.20.00 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 6903.20 (containing, by weight, more than 50 % of alumina).

The general duty is free, and quantities are declared in kg.

For the same subheading, the UK duty is 4%, the EU duty is 5%, the Türkiye duty is 5%, the Canada duty is free, the Mexico duty is free, the Brazil duty is 9%, the Argentina duty is 9%, the Peru duty is free, the New Zealand duty is 5%, the Japan duty is 3.5%, the Taiwan duty is 6.8%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 3% and the Nigeria duty is 20%.

The United States imported goods of subheading 6903.20 worth US$174m in 2024; the largest supplier was Mexico.

Questions and answers

What is the USA import duty for HTS code 6903.20.00?

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 6903.20 as a whole, the largest supplier in 2024 was Mexico (US$42m), followed by Japan.

Download as CSV Follow changes (RSS)