Import duty / Chapter 28 / Heading 2835
Heading 2835 covers 8 tariff lines in LoadLoom's table; 6 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 |
|---|---|---|---|---|
| 2835.10 | Phosphinates (hypophosphites) and phosphonates (phosphites), whether or not chemically defined | 3.1% | Free | Free with certificate |
| 2835.22 | Phosphates; of mono- or disodium, whether or not chemically defined | 1.4% | Free | Free with certificate |
| 2835.24 | Phosphates; of potassium, whether or not chemically defined | 3.1% | Free | Free with certificate |
| 2835.25 | Phosphates; calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined | Free | Free | Free with certificate |
| 2835.26 | Phosphates; of calcium n.e.c. in item no. 2835.25, whether or not chemically defined | Free | Free | Free with certificate |
| 2835.29 | Phosphates; (other than of mono- or disodium, other than of potassium or of calcium hydrogenorthophosphate (dicalcium phosphate) and excluding other phosphates of calcium), whether or not chemically defined | Free | Free | Not eligible |
| 2835.31 | Polyphosphates; sodium triphosphate (sodium tripolyphosphate), whether or not chemically defined | 1.4% | Free | Free with certificate |
| 2835.39 | Polyphosphates; other than sodium triphosphate (sodium tripolyphosphate), whether or not chemically defined | 3.1% | 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
