United States of America HS Code

HS Code 310311: Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5) in United States of America

Q: Is HS code 310311 the same across all countries?

Yes — up to the 6-digit level, HS code 310311 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. United States of America extends it under HTS / HTSUS.

Q: What system does United States of America use to classify HS code 310311?

United States of America classifies products under the Harmonized Tariff Schedule of the United States (HTS / HTSUS; locally Harmonized Tariff Schedule), which extends HS codes to 10 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 310311 in United States of America?

The official source is https://www.cbp.gov/. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 310311 in United States of America

Under United States of America's Harmonized Tariff Schedule of the United States (Harmonized Tariff Schedule), HS Code 310311 is the WCO Harmonized System subheading for Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5). This is the most detailed internationally standardized level; United States of America extends classifications to 10 digits under its national tariff system. 310311 belongs to Section VI: Products of the chemical or allied industries, Chapter 31: Fertilizers, Heading 3103: Mineral or chemical fertilisers, phosphatic.

Explore more 2026 Latest United States of America import export trade data and shipment records for HS Code High-Grade Superphosphate on TradeInt global trade data platform

Classification Path of HS Code 310311 in United States of America

Section VI

Chapters (28-38) Products of the chemical or allied industries

Chapter 31

Fertilizers

HS Code 3103

Mineral or chemical fertilisers, phosphatic

HS Code 310311

Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)

HS Code 3103110000

Containing by weight 35 percent or more of diphosphorous pentaoxide (P 2 O 5 )

United States of America Tariff Classification: Harmonized Tariff Schedule of the United States (HTS / HTSUS)

In United States of America, HS 310311 is classified under the Harmonized Tariff Schedule of the United States (Harmonized Tariff Schedule) — a 10-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Harmonized Tariff Schedule of the United States (HTS / HTSUS)

Local name Harmonized Tariff Schedule

Digits 10

Official source https://www.cbp.gov/

You know what 310311 means. Now see 2026 latest real trade activity for High-Grade Superphosphate in United States of America.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

Search 2026 Latest United States of America Import Data Search 2026 Latest United States of America Export Data

Top Trading Product of HS Code 3103

Top United States of America import Product Under HS Code 3103

1 310311: Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5) $232.9M 2 310390: Other $84.3M 3 310319: Superphosphates : Other $393.1K

Figures shown for 2025.

For more 2026 recent data, search for United States of America import trade records

Top United States of America export Product Under HS Code 3103

1 310390: Other $6.7M 2 310311: Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5) $5.0M 3 310319: Superphosphates : Other $4.4M

Figures shown for 2025.

For more 2026 recent data, search for United States of America export trade records

Related HS Code to United States of America High-Grade Superphosphate (310311)

HS Code 3103110000

Containing by weight 35 percent or more of diphosphorous pentaoxide (P 2 O 5 )

HS Code 310319

Superphosphates : Other

HS Code 310390

Other

HS Code 310100

Animal or vegetable fertilisers, whether or not mixed together or chemically treated; fertilisers produced by the mixing or chemical treatment of animal or vegetable products

HS Code 310210

Urea, whether or not in aqueous solution

HS Code 310221

Ammonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate : Ammonium sulphate

HS Code 310229

Ammonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate : Other

HS Code 310230

Ammonium nitrate, whether or not in aqueous solution

HS Code 310240

Mixtures of ammonium nitrate with calcium carbonate or other inorganic nonfertilising substances

HS Code 310250

Sodium nitrate

Frequently Asked Questions

What is HS code 310311 in United States of America?

HS code 310311 covers Superphosphates : Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5) in United States of America. It sits in Chapter 31 (Fertilizers), Heading 3103 of the Harmonized System, and is classified under HTS / HTSUS.

Is HS code 310311 the same across all countries?

What system does United States of America use to classify HS code 310311?

Where can I officially look up HS code 310311 in United States of America?