China HS Code

HS Code 310540: Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate) in China

Q: Is HS code 310540 the same across all countries?

Yes — up to the 6-digit level, HS code 310540 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. China extends it under China HS / CCCHS.

Q: What system does China use to classify HS code 310540?

China classifies products under the Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS; locally 中华人民共和国海关进出口税则), which extends HS codes to 13 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 310540 in China?

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

What is HS Code 310540 in China

Under China's Customs Import and Export Tariff of the People's Republic of China (中华人民共和国海关进出口税则), HS Code 310540 is the WCO Harmonized System subheading for Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate). This is the most detailed internationally standardized level; China extends classifications to 13 digits under its national tariff system. 310540 belongs to Section VI: Products of the chemical or allied industries, Chapter 31: Fertilizers, Heading 3105: Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg.

Explore more 2026 Latest China import export trade data and shipment records for HS Code Monoammonium Phosphate (MAP) on TradeInt global trade data platform

Classification Path of HS Code 310540 in China

Section VI

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

Chapter 31

Fertilizers

HS Code 3105

Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg

HS Code 310540

Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)

HS Code 31054000

Ammonium dihydrogenorthophosphate (monoammonium phosphate) 磷酸二氢铵及其与磷酸氢二铵的混合物

China Tariff Classification: Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS)

In China, HS 310540 is classified under the Customs Import and Export Tariff of the People's Republic of China (中华人民共和国海关进出口税则) — a 13-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS)

Local name 中华人民共和国海关进出口税则

Digits 13

Official source http://english.customs.gov.cn/

You know what 310540 means. Now see 2026 latest real trade activity for Monoammonium Phosphate (MAP) in China.

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

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Top Trading Product of HS Code 3105

Top China import Product Under HS Code 3105

1 310520: Mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium $706.3M 2 310590: Other $66.3M 3 310559: Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus : Other $34.9M

Figures shown for 2025.

For more 2026 recent data, search for China import trade records

Top China export Product Under HS Code 3105

1 310530: Diammonium hydrogenorthophosphate (diammonium phosphate) $2.5B 2 310559: Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus : Other $1.8B 3 310540: Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate) $1.3B

Figures shown for 2025.

For more 2026 recent data, search for China export trade records

Related HS Code to China Monoammonium Phosphate (MAP) (310540)

HS Code 31054000

Ammonium dihydrogenorthophosphate (monoammonium phosphate)

HS Code 310510

Goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg

HS Code 310520

Mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium

HS Code 310530

Diammonium hydrogenorthophosphate (diammonium phosphate)

HS Code 310551

Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus : Containing nitrates and phosphates

HS Code 310559

Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus : Other

HS Code 310560

Mineral or chemical fertilisers containing the two fertilising elements phosphorus and potassium

HS Code 310590

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

Frequently Asked Questions

What is HS code 310540 in China?

HS code 310540 covers Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate) in China. It sits in Chapter 31 (Fertilizers), Heading 3105 of the Harmonized System, and is classified under China HS / CCCHS.

Is HS code 310540 the same across all countries?

What system does China use to classify HS code 310540?

Where can I officially look up HS code 310540 in China?