HS code 310311: Superphosphates
- Covers:
- Mineral or chemical fertilisers, phosphatic: Containing by weight 35 % or more of…
- Listed US duty:
- 0% (US general rate, HTS 2026)
Official description
Mineral or chemical fertilisers, phosphatic : Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)
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Suggestions from the HS index, not a customs ruling
Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.
What 310311 covers and what it doesn’t
Official text: Mineral or chemical fertilisers, phosphatic › Superphosphates › Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5).
Nearby codes to check
US duty rate
0%
General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.
Common questions
- What is HS code 310311?
- Mineral or chemical fertilisers, phosphatic : Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)
- What duty rates apply to 310311?
- Listed duty rates range from 0% across 1 country rate.
Browse all of Chapter 31: Fertilisers →
Go beyond the code
Find the companies shipping under 310311 in the company directory, or classify and check duty with the CLI.