Import duty / Chapter 28 / Heading 2837
Heading 2837 covers 3 tariff lines in LoadLoom's table; 2 of them clear duty-free under USMCA for goods made in Canada, the US or Mexico. Published US and Canadian rates below, verified October 2026. Pick the line that matches your goods for the worked example and border steps.
| HS code | Goods | US duty | Canada duty | USMCA |
|---|---|---|---|---|
| 2837.11 | Cyanides and cyanide oxides; of sodium | Free | Free | Free with certificate |
| 2837.19 | Cyanides and cyanide oxides; other than of sodium | Free | Free | Free with certificate |
| 2837.20 | Complex cyanides | 1.1% | Free | Not eligible |
This page is a free reference for shippers, not a customs ruling. Final classification and duty are determined by the licensed customs broker at entry, and government amounts are always billed at actual. Rates change with each tariff edition and trade action.
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Chapter 28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes · Every chapter
