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HS 2022 · 6-digit international code

HS Code 310221

Ammonium sulphate

Official description: Mineral or chemical fertilisers, nitrogenous : Ammonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate : Ammonium sulphate

Also searched as: ammonium sulfate fertilizer, sulfate of ammonia, (NH4)2SO4

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Official sources, not guessesSame 6 digits worldwideBuilt for 1688 buyers

Classification

How 310221 breaks down

HS 2022
31Chapter

Fertilisers

3102Heading

Mineral or chemical fertilisers, nitrogenous

310221Subheading

Ammonium sulphate

Covered products

What products fall under HS code 310221?

Buyers sourcing ammonium sulphate from 1688 commonly describe it in these ways. If your product matches, 310221 is likely the right 6-digit starting point — confirm material and intended use against the official tariff.

ammonium sulfate fertilizersulfate of ammonia(NH4)2SO4

Import duty by market

Where to check the import duty for HS 310221

The 6-digit code is universal, but duty, VAT and GST are set by the destination country and depend on the full national tariff line with China as the country of origin. Start from the official source for your market.

United States

USITC / CBP · Harmonized Tariff Schedule (HTS)

European Union

TARIC · Access2Markets

United Kingdom

HMRC · UK Integrated Online Tariff

Canada

CBSA · Canadian Customs Tariff

Australia

ABF · Australian customs tariff

Singapore

Singapore Customs · Singapore Trade Classification (HS)

Compare the real China-origin import tax across markets

Use the HS & import duty checker to estimate duty + VAT/GST for 310221 by destination before you pay a 1688 supplier.

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Heading 3102

Other HS codes under 3102

Subheadings in the same 4-digit heading — "Mineral or chemical fertilisers, nitrogenous". If 310221 is not an exact match, one of these may classify your product more precisely.

310210Urea, whether or not in aqueous solution310229Ammonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate310230Ammonium nitrate, whether or not in aqueous solution310240Mixtures of ammonium nitrate with calcium carbonate or other inorganic nonfertilising substances310250Sodium nitrate310260Double salts and mixtures of calcium nitrate and ammonium nitrate310280Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution310290Other, including mixtures not specified in the foregoing subheadings

Questions

HS code 310221: common questions

What is HS code 310221?

HS code 310221 is the World Customs Organization 6-digit HS 2022 subheading for "Mineral or chemical fertilisers, nitrogenous : Ammonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate : Ammonium sulphate". The first two digits (31) are the chapter — Fertilisers — and digits 3-4 (3102) are the heading. Countries add further digits (8-10) for their national tariff line.

What products fall under HS 310221?

Common products classified under 310221 include ammonium sulfate fertilizer, sulfate of ammonia, (NH4)2SO4 and similar items matching ammonium sulphate. The correct code still depends on the product's material, function and intended use.

How do I find the import duty for HS code 310221?

Duty is set by the destination country, not by the 6-digit HS code alone. Start from the official tariff of your market — USITC HTS (US), TARIC / Access2Markets (EU), GOV.UK Trade Tariff (UK), CBSA (Canada), ABF (Australia) or Singapore Customs — and look up the full national code with China as the country of origin.

Is HS code 310221 the same in every country?

The first 6 digits (310221) are the same worldwide under the WCO Harmonized System. Beyond that, each country extends the code (HTS in the US, TARIC in the EU, etc.) and sets its own duty and tax rates.

Can I trust the HS code a 1688 supplier gives me?

Treat a supplier-provided code as a clue, not a final classification. It can be incomplete, China-export-specific, or mismatched to your destination's rules. Verify against the official tariff and your product's actual material and use.

Chapter 31

Explore Fertilisers

310100Animal or vegetable fertilisers, whether or not mixed together or chemically treated; fertilisers produced by the mixing or chemical treatment of animal or vegetable products310311Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)310420Potassium chloride310510Goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg

Sourcing ammonium sulphate from 1688?

Get a written pre-payment check — classification clues, China-origin landed cost, and supplier risk — before you commit. 5,754 HS codes covered.

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