Skip to content
292021Chapter 29

HS code 292021: Dimethyl Phosphite

Covers:
Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and…
Listed US duty:
3.7% (US general rate, HTS 2026)

Official description

Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Dimethyl phosphite

Find or check your HS code

Suggestions from the HS index, not a customs ruling

Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.

Or try

What 292021 covers and what it doesn’t

Official text: Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives › Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives › Dimethyl phosphite.

Nearby codes to check

  • Heading 2920 Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: every subheading side by side.
  • 292011 Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives — Parathion (ISO) and parathion-methyl (ISO) (methyl-parathion)
  • 292019 Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives — Other
  • 292022 Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives — Diethyl phosphite
  • 292023 Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives — Trimethyl phosphite
  • 292024 Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives — Triethyl phosphite
  • 292029 Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives — Other
  • 292030 Endosulfan (ISO)
  • 292090 Other

US duty rate

3.7%

General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.

Common questions

What is HS code 292021?
Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Dimethyl phosphite
What duty rates apply to 292021?
Listed duty rates range from 3.7% across 1 country rate.

Browse all of Chapter 29: Organic chemicals →

Go beyond the code

Find the companies shipping under 292021 in the company directory, or classify and check duty with the CLI.

Was this page helpful?