New

Ask Wove anything about tariffs.

Try Tariff Assistant

(5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate

This is a specific non-halogenated organo-phosphorus compound classified under HTS 2931.47.00.00 as it features phosphorus atoms directly linked to carbon in a complex cyclic structure with phosphonate and phosphinan moieties. It falls within Chapter 29 for separate chemically defined organic compounds containing organo-inorganic phosphorus derivatives.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+37.5%41.2%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2931.90Lower: 16.2% vs 41.2%

If containing sulfur or other nonmetals/metals directly linked to carbon

Heading 2931.90 covers other organo-inorganic compounds beyond phosphorus derivatives; applies if molecule has additional heteroatoms like sulfur.

2930.90Lower: 16.2% vs 41.2%

If classified as organo-sulfur compound with phosphorus as substituent

Organo-sulfur compounds take precedence in 2930 if sulfur-carbon bond defines character over phosphorus functionality.

2909.60Lower: 16.2% vs 41.2%

If containing alcohol groups making it a phosphate ester of Chapter 29 subchapter III

Phosphate triesters fall in 2909.60; reclassification if OH groups present and oxygen-function defines principal characteristic.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Provide detailed chemical analysis and CAS number (if assigned) to confirm classification under 2931.47 as a non-halogenated organo-phosphorus derivative

• Ensure packaging complies with Chapter 29 note (e) for solvents used solely for safety/transport, avoiding retail-specific preparations

• Verify no halogen substitution to prevent misclassification into earlier halogenated organo-phosphorus headings