# HTS 2835: Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=2835). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 2835: Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 2835 | Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined: |  |  |  |  |
| 2835.10.00.00 |   Phosphinates (hypophosphites) and phosphonates (phosphites) | 3.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
|  |   Phosphates: |  |  |  |  |
| 2835.22.00.00 |     Of mono- or disodium | 1.4% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 6% | kg |
| 2835.24.00.00 |     Of potassium | 3.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2835.25.00.00 |     Calcium hydrogenorthophosphate ("Dicalcium phosphate") | Free |  | 25% | kg |
| 2835.26.00.00 |     Other phosphates of calcium | Free |  | 25% | kg |
| 2835.29 |     Other: |  |  |  |  |
| 2835.29.10.00 |       Of aluminum | Free |  | 25% | kg |
| 2835.29.20.00 |       Of triammonium | 1.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 8.5% | kg |
| 2835.29.30.00 |       Of trisodium | 2.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 11.5% | kg |
| 2835.29.51.00 |       Other | 4.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
|  |   Polyphosphates: |  |  |  |  |
| 2835.31.00.00 |     Sodium triphosphate (Sodium tripolyphosphate) | 1.4% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 6% | kg |
| 2835.39 |     Other: |  |  |  |  |
| 2835.39.10.00 |       Of potassium | 3.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2835.39.50.00 |       Other | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |