HS Code 2931: Other organo-inorganic compounds

Q: Is HS code 2931 the same in every country?

Yes — HS code 2931 is part of the WCO Harmonized System and is the same in every WCO member country at the 6-digit level. Beyond 6 digits, each country extends the code under its own system (e.g. HTSUS in the US, CN/TARIC in the EU, HSK in Korea, CCCHS in China) for national tariff rates and trade statistics. To see how a specific country classifies this code, select a country.

Q: Which WCO edition does HS code 2931 belong to, and has it been reclassified?

The Harmonized System is maintained by the World Customs Organization (WCO) and revised approximately every five years. The current edition is HS 2022, which replaced HS 2017 on 1 January 2022. Codes are added, merged, or split between editions to reflect new products and trade patterns, so a code valid in one edition may not exist or may mean something different in another.

Q: How do I find the correct country-specific version of HS code 2931?

Beyond the international 6-digit level, each country adds its own digits — the US extends to 10 digits (HTSUS), the EU to 8 or 10 (CN/TARIC), China to 13 (CCCHS), Korea to 10 (HSK), Japan to 9, and so on. To find the full code used by a specific country, select a country in TradeInt's HS Code Tool and search for 2931.

What is HS Code 2931

HS Code 2931 covers Other organo-inorganic compounds. It is a 4-digit heading within Chapter 29 (Organic chemicals), Section VI. Its 6-digit subheadings are identical in every HS-adopting country; from the 7th digit onward, each country extends the code for its own tariff and statistics.

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What does HS Code 2931 Other organo-inorganic compounds Cover?

Section VI

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

Chapter 29

Organic chemicals

HS Code 2931

Other organo-inorganic compounds

HS Code 293190

Organo-inorganic compounds; other than tetramethyl lead, tetraethyl lead, tributyltin compounds, and other organo-phosphorous derivatives

HS Code 293110

Organo-inorganic compounds; tetramethyl lead and tetraethyl lead

HS Code 293120

Organo-inorganic compounds; tributyltin compounds

HS Code 293141

Non-halogenated organo-phosphorous derivatives; dimethyl methylphosphonate

HS Code 293142

Non-halogenated organo-phosphorous derivatives; dimethyl propylphosphonate

HS Code 293143

Non-halogenated organo-phosphorous derivatives; diethyl ethylphosphonate

HS Code 293144

Non-halogenated organo-phosphorous derivatives; methylphosphonic acid

HS Code 293145

Non-halogenated organo-phosphorous derivatives; salt of methylphosphonic acid and (aminominomethyl) urea (1:1)

HS Code 293146

Non-halogenated organo-phosphorous derivatives; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide

HS Code 293147

Non-halogenated organo-phosphorous derivatives; (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate

HS Code 293148

Non-halogenated organo-phosphorous derivatives; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide

HS Code 293149

Non-halogenated organo-phosphorous derivatives; other non-halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.4

HS Code 293151

Halogenated organo-phosphorous derivatives; methylphosphonic dichloride

HS Code 293152

Halogenated organo-phosphorous derivatives; propylphosphonic dichloride

HS Code 293153

Halogenated organo-phosphorous derivatives; O-(3-chloropropyl) O-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate

HS Code 293154

Halogenated organo-phosphorous derivatives; trichlorfon (ISO)

HS Code 293159

Halogenated organo-phosphorous derivatives; other halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.5

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What HS Codes for Organic Chemicals Do Not Cover

Chapter 29 covers separate chemically defined organic compounds. Goods frequently misclassified here but that belong elsewhere include:

Mixtures of organic chemicals

Chapter 38

Pharmaceutical products (in dosage form)

Chapter 30

Essential oils

Chapter 33

Plastics in primary form

Chapter 39

This list highlights common classification errors only — it is not exhaustive. For binding classification, work with a licensed customs broker or qualified trade compliance professional.

Related HS Codes under Organo-Inorganic Compounds HS 2931