HTSUS, United States
3103.11.00.00
Containing by weight 35 percent or more of diphosphorous pentaoxide (P2O5)
Classification path
- Mineral or chemical fertilizers, phosphatic
- Superphosphates
- Containing by weight 35 percent or more of diphosphorous pentaoxide (P2O5)
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- Free
- Unit of quantity
- t
Related lines in heading 3103
About heading 3103
Mineral or chemical fertilizers, phosphatic
Heading 3103 covers mineral or chemical fertilizers that are phosphatic. It is split into one line for superphosphates containing 35% or more of diphosphorous pentaoxide (P2O5), one line for other superphosphates, and a residual line for other phosphatic fertilizers. All three lines carry a general (MFN) rate of Free.
Full guide to heading 3103Products in this heading
- Superphosphate fertilizer containing 35% or more of P2O5
- Superphosphate fertilizer containing less than 35% of P2O5
- Triple superphosphate fertilizer
- Single superphosphate fertilizer
- Granulated phosphatic fertilizer
- Phosphatic fertilizer for direct soil application
- Basic slag fertilizer
- Calcined phosphate fertilizer
Frequently asked questions
What is the HTS code for superphosphate containing 35% or more of P2O5?
Use 3103.11.00.00. The general (MFN) rate is Free.
What is the duty on other superphosphates?
Other superphosphates are classified under 3103.19.00.00, with a general (MFN) rate of Free.
How do I classify a phosphatic fertilizer that is not a superphosphate?
Use the residual line 3103.90.01.00. Its general (MFN) rate is Free.
Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.