Customs Tariff of Canada · tariff item · HS 6903.20
6903.20.00.00: Alumina refractory goods (other): Containing by weight more than 50% of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)
Alumina refractory goods (other)
✓ Can be used in a customs declaration Data: Customs Tariff of Canada, in force from 11 September 2026 · checked on 24 October 2026
- 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.
- 6903.20.00 Containing by weight more than 50% of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)
- 6903.20.00.00 Containing by weight more than 50% of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)
What you pay
Importing into Canada
Customs duty only: import VAT, other taxes and trade defence duties of this country are not covered here, and the duty calculator works only with the EU, Türkiye, US and UK tariffs.
Same subheading in other tariffs
UK 4% Third-country duty 2 tariff lines 
EU 5% Third-country duty 2 tariff lines 
Türkiye 5% Third-country duty 4 tariff lines 
USA Free General (MFN) 1 tariff line 
Mexico Free General (MFN) 4 tariff lines 
Brazil 9% General (MFN) 4 tariff lines 
Argentina 9% General (MFN) 4 tariff lines 
Peru Free General (MFN) 2 tariff lines 
New Zealand 5% General (MFN) 3 tariff lines 
Japan 3.5% General (MFN) 1 tariff line 
Taiwan 6.8% General (MFN) 3 tariff lines 
GCC 5% General (MFN) 1 tariff line 
Switzerland Free General (MFN) 1 tariff line 
Norway Free General (MFN) 1 tariff line 
North Macedonia 3% General (MFN) 2 tariff lines 
Nigeria 20% General (MFN) 1 tariff line Legal notes
Notes
1. This chapter applies only to ceramic products which have been fired after shaping:
(a) headings 6904 to 6914 apply only to such products other than those classifiable in headings 6901 to 6903;
(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
(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:
(a) products of heading 2844;
(b) articles of heading 6804;
(c) articles of Chapter 71 (for example, imitation jewellery);
(d) cermets of heading 8113;
(e) articles of Chapter 82;
(f) electrical insulators (heading 8546) or fittings of insulating material of heading 8547;
(g) artificial teeth (heading 9021);
(h) articles of Chapter 91 (for example, clocks and clock cases);
(ij) articles of Chapter 94 (for example, furniture, luminaires and lighting fittings, prefabricated buildings);
(k) articles of Chapter 95 (for example, toys, games and sports requisites);
(l) articles of heading 9606 (for example, buttons) or of heading 9614 (for example, smoking pipes); or
(m) articles of Chapter 97 (for example, works of art).
Tariff item 6903.20.00.00 is a line of the Customs Tariff of Canada under HS subheading 6903.20 (containing, by weight, more than 50 % of alumina).
The MFN tariff rate is free, and quantities are declared in KGM.
For the same subheading, the UK duty is 4%, the EU duty is 5%, the Türkiye duty is 5%, the US 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%.
Canada imported goods of subheading 6903.20 worth US$49m in 2024; the largest supplier was the United States.
Questions and answers
What is the Canada import duty for tariff item 6903.20.00.00?
The MFN tariff rate in the Customs Tariff of Canada is free; the supplementary unit is KGM. This page shows the rate as published by the national source and, where the source publishes them, preferential rates: choose the country of origin to see them. Trade defence duties and VAT are not covered.
Where does Canada import these goods from?
For subheading 6903.20 as a whole, the largest supplier in 2024 was the United States (US$27m), followed by Mexico.