From Chapter 31: Chapter 31
| HTS Code | Description | General Duty |
|---|---|---|
| 3103110000 | Superphosphates Containing by weight 35 percent or more of diphosphorous pentaoxide (P2O5) | Free |
| 3103190000 | Superphosphates Other | Free |
| 3103900100 | Mineral or chemical fertilizers, phosphatic Other | Free |