HS Code 3811.21.00.90
Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Additives for lubricating oils: - Containing petroleum oils or oils obtained from bituminous minerals - Other
Most Favoured Nation (MFN) Rate
Free
About HS Code 3811.21.00.90
HS code 3811.21.00.90 is a Canadian 10-digit tariff item covering Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Additives for lubricating oils: - Containing petroleum oils or oils obtained from bituminous minerals - Other. It falls under Chapter 38 — Miscellaneous chemical products of the Canadian Customs Tariff, within heading 3811 and subheading 3811.21. This code is used by the Canada Border Services Agency (CBSA) to determine customs duties, taxes, and regulatory compliance when you import into Canada.
The MFN (Most Favoured Nation) duty rate for 3811.21.00.90 is Free. This means no customs duty is charged regardless of the country of origin, though GST/HST and other applicable taxes still apply. 22 preferential trade agreements are available for this code, of which 22 offer duty-free access (for example: Australia Tariff, New Zealand Tariff, Commonwealth Caribbean Countries Tariff, Least Developed Country Tariff, General Preferential Tariff).
Key trade agreement eligibility: CUSMA (USA, Mexico) duty-free · CETA (EU) duty-free · CPTPP (Asia-Pacific) duty-free.
Example Calculation for 3811.21.00.90
If you import CAD $10,000 worth of goods classified under HS code 3811.21.00.90 into Canada (without a preferential trade agreement), here is the approximate cost breakdown:
| Value for Duty (VFD) | $10,000 |
| MFN Duty (Free) | $0 |
| GST (5%) | $500 |
| Total Landed Cost (approx.) | $10,500 |
Illustrative example. Does not include surtaxes, SIMA, excise duties, freight, provincial HST/PST, or trade-agreement exemptions. Use our calculator for an exact figure.
Frequently Asked Questions about HS Code 3811.21.00.90
What is HS code 3811.21.00.90?
HS code 3811.21.00.90 is a Canadian 10-digit tariff item used by the Canada Border Services Agency (CBSA) to classify imports of "Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Additives for lubricating oils: - Containing petroleum oils or oils obtained from bituminous minerals - Other". It sits under Chapter 38 (Miscellaneous chemical products) of the Canadian Customs Tariff.
What is the Canadian import duty rate for 3811.21.00.90?
Imports classified under HS code 3811.21.00.90 are duty-free at the MFN (Most Favoured Nation) rate. You still pay GST/HST and other applicable taxes. Use our calculator to see the full landed cost.
Can I import 3811.21.00.90 duty-free from the USA or Mexico under CUSMA?
Yes. HS code 3811.21.00.90 is duty-free under the Canada-United States-Mexico Agreement (CUSMA) when the goods originate in the US or Mexico and you provide a valid certification of origin. GST/HST still applies on import.
Does CETA apply to HS code 3811.21.00.90?
Yes. Imports of HS code 3811.21.00.90 from the European Union enter Canada duty-free under the Canada-EU Comprehensive Economic and Trade Agreement (CETA) with a valid origin declaration from the EU exporter.
What surtaxes or SIMA duties apply to HS code 3811.21.00.90?
Our calculator automatically checks retaliatory surtaxes (US steel & aluminum, Chinese EVs, etc.) and SIMA anti-dumping duties for 3811.21.00.90. Enter the country of origin in the calculator to see the complete list of duties that apply to your shipment.
Is this the right code for your product?
Our free AI classifier uses CBSA’s GRI rules to confirm or correct your classification.
Ask the AI chatPreferential Rates by Trade Agreement
22 applicable trade agreements
| Code | Trade Agreement | Rate |
|---|---|---|
| AUT | Australia Tariff | Free |
| CCoFTA | Canada-Colombia Free Trade Agreement | Free |
| CEPT | Canada-EFTA Preferential Tariff | Free |
| CETA | Canada-EU Comprehensive Economic and Trade Agreement | Free |
| CHFTA | Canada-Honduras Free Trade Agreement | Free |
| CIAT | Canada-Israel Agreement Tariff | Free |
| CJFTA | Canada-Jordan Free Trade Agreement | Free |
| CKFTA | Canada-Korea Free Trade Agreement | Free |
| CPaFTA | Canada-Panama Free Trade Agreement | Free |
| CPFTA | Canada-Peru Free Trade Agreement | Free |
| CUKTCA | Canada-United Kingdom Trade Continuity Agreement | Free |
| CT | Chile Tariff | Free |
| CCCT | Commonwealth Caribbean Countries Tariff | Free |
| CPTPP | Comprehensive and Progressive Trans-Pacific Partnership | Free |
| CRT | Costa Rica Tariff | Free |
| GPT | General Preferential Tariff | Free |
| IT | Iceland Tariff | Free |
| LDCT | Least Developed Country Tariff | Free |
| MT | Mexico Tariff | Free |
| NZT | New Zealand Tariff | Free |
| UAT | Ukraine Tariff | Free |
| UST | United States Tariff | Free |
Calculate import duties for HS code 3811.21.00.90
Get a complete duty, tax, and fee calculation for HS code 3811.21.00.90, including surtaxes, GST/HST, and provincial taxes.
Calculate import duty for 3811.21.00.90Related Guides
Related HS Codes
Other codes under chapter 38
| HS Code | Description | MFN Rate |
|---|---|---|
| 3811.11.00.00 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Anti-knock preparations: - Based on lead compounds | Free |
| 3811.19.00.00 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Anti-knock preparations: - Other | Free |
| 3811.21.00 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Additives for lubricating oils: - Containing petroleum oils or oils obtained from bituminous minerals | Free |
| 3811.21.00.10 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Additives for lubricating oils: - Containing petroleum oils or oils obtained from bituminous minerals - Mixtures containing zinc dialkyl dithiophosphate | Free |
| 3811.29.00.00 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Additives for lubricating oils: - Other | Free |
| 3811.90.00 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Other | Free |
| 3811.90.00.10 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Other - Additives for gasoline: - Additives for gasoline | Free |
| 3811.90.00.90 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. - Other - Other | Free |