From Chapter 28: Chapter 28
| HTS Code | Description | General Duty |
|---|---|---|
| 2813100000 | Sulfides of nonmetals; commercial phosphorus trisulfide Carbon disulfide | 3.7% |
| 2813901000 | Other Of arsenic | Free |
| 2813902000 | Other Of phosphorus | Free |
| 2813905000 | Other Other | 3.7% |