# HTS 2830: Sulfides; polysulfides, whether or not chemically defined:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=2830). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 2830: Sulfides; polysulfides, whether or not chemically defined:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 2830 | Sulfides; polysulfides, whether or not chemically defined: |  |  |  |  |
| 2830.10.00.00 |   Sodium sulfides | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2830.90 |   Other: |  |  |  |  |
| 2830.90.10.00 |     Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weight | Free |  | 11% | kg |
| 2830.90.15.00 |     Other zinc sulfide | 2.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 11% | kg |
| 2830.90.20.00 |     Cadmium sulfide | 3.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2830.90.90.00 |     Other | 3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |