Hong Kong, China Special Administrative Region HS Code

HS Code 31031900: SUPERPHOSPHATES, CONTAINING BY WEIGHT LESS THAN 35% OF DIPHOSPHORUS PENTAOXIDE (P2O5) in Hong Kong, China Special Administrative Region

Q: Is HS code 31031900 the same across all countries?

Only the first 6 digits of HS code 31031900 are internationally harmonized. The remaining digits are added by Hong Kong, China Special Administrative Region under HKHS and are not directly comparable to other countries' codes.

Q: What system does Hong Kong, China Special Administrative Region use to classify HS code 31031900?

Hong Kong, China Special Administrative Region classifies products under the Hong Kong Harmonized System (HKHS; locally 香港協調制度), which extends HS codes to 8 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 31031900 in Hong Kong, China Special Administrative Region?

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

What is HS Code 31031900 in Hong Kong, China Special Administrative Region

Under Hong Kong, China Special Administrative Region's Hong Kong Harmonized System (香港協調制度), HS Code 31031900 is classified as SUPERPHOSPHATES, CONTAINING BY WEIGHT LESS THAN 35% OF DIPHOSPHORUS PENTAOXIDE (P2O5). Hong Kong, China Special Administrative Region's tariff system extends the WCO Harmonized System to 8 digits with national subdivisions. 31031900 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 Hong Kong, China Special Administrative Region import export trade data and shipment records for HS Code Standard Superphosphate on TradeInt global trade data platform

Classification Path of HS Code 31031900 in Hong Kong, China Special Administrative Region

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 31031900

SUPERPHOSPHATES, CONTAINING BY WEIGHT LESS THAN 35% OF DIPHOSPHORUS PENTAOXIDE (P2O5) 過磷酸鈣（酸性磷酸鹽），以重量計，含五氧化二磷少於35%

Hong Kong, China Special Administrative Region Tariff Classification: Hong Kong Harmonized System (HKHS)

In Hong Kong, China Special Administrative Region, HS 31031900 is classified under the Hong Kong Harmonized System (香港協調制度) — a 8-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Hong Kong Harmonized System (HKHS)

Local name 香港協調制度

Digits 8

Official source https://www.customs.gov.hk/en/home/index.html

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Related HS Code to Hong Kong, China Special Administrative Region Standard Superphosphate (31031900)

HS Code 310311

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

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

HS Code 310260

Double salts and mixtures of calcium nitrate and ammonium nitrate

31031900 in Other Countries

See how 31031900 (Standard Superphosphate) is classified across other countries, each with its own national code and local description.

Compare 31031900 across countries

Frequently Asked Questions

What is HS code 31031900 in Hong Kong, China Special Administrative Region?

HS code 31031900 covers SUPERPHOSPHATES, CONTAINING BY WEIGHT LESS THAN 35% OF DIPHOSPHORUS PENTAOXIDE (P2O5) in Hong Kong, China Special Administrative Region. It sits in Chapter 31 (Fertilizers), Heading 3103 of the Harmonized System, and is classified under HKHS.

Is HS code 31031900 the same across all countries?

What system does Hong Kong, China Special Administrative Region use to classify HS code 31031900?

Where can I officially look up HS code 31031900 in Hong Kong, China Special Administrative Region?