HS 2811 – Other inorganic acids and other inorganic oxygen compounds of non-metals.
Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026
Other inorganic acids and other inorganic oxygen compounds of non-metals.
Subheadings
Child tariff lines and MFN rates
| HS code | Description | MFN rate |
|---|---|---|
| 2811-11 – Hydrogen fluoride (hydrofluoric acid) | MFN Free | |
| 2811-11-00-00 | Hydrogen fluoride (hydrofluoric acid) | Free |
| 2811-12 – Hydrogen cyanide (hydrocyanic acid) | MFN Free | |
| 2811-12-00-00 | Hydrogen cyanide (hydrocyanic acid) | Free |
| 2811-19 – Other | MFN Free | |
| 2811-19-00-00 | Other | Free |
| 2811-21 – Carbon dioxide | MFN Free | |
| 2811-21-00-00 | Carbon dioxide | Free |
| 2811-22 – Silicon dioxide | MFN Free | |
| 2811-22-00-10 | Hydrated silica | Free |
| 2811-22-00-20 | Silica gel | Free |
| 2811-22-00-90 | Other | Free |
| 2811-29 – Other | MFN Free | |
| 2811-29-00-00 | Other | Free |
Top importers in this heading
137 Canadian companies imported goods under heading 28.11 according to the CBSA Canadian Importers Database, 2023 data.
Most frequent importers
- BRENNTAG CANADA INC. - Ontario - 3 codes
- MESSER CANADA INC. - Ontario - 3 codes
- CHEMTRADE WEST LIMITED PARTNERSHIP - Ontario - 2 codes
- DIVERSITY TECHNOLOGIES CORPORATION - Alberta - 2 codes
- LINDE CANADA INC. - Ontario - 2 codes
- NOVA CHEMICALS CORPORATION - Alberta - 2 codes
- OPTA INC. - Ontario - 2 codes
- QUADRA CHEMICALS LTD. QUADRA CHIMIE LTEE - Quebec - 2 codes
- SILICYCLE INC - Quebec - 2 codes
- UNIVAR SOLUTIONS CANADA LTD. - Ontario - 2 codes