Bis(polyoxyethylene) methylphosphonate (BPEMP)
Bis(polyoxyethylene) methylphosphonate (BPEMP) is a polyether compound in primary form, used as a flame retardant. Its chemical structure as a phosphonate ester of polyoxyethylene chains directly matches the tariff item's description.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the BPEMP is chemically modified or blended with other polymers
Chemically modified or blended polyethers may be classified under other polyether subheadings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the product is in primary form (liquid, paste, or powder) and not mixed with other polymers that would change classification
• Keep records of the chemical composition to show the CBSA on request
• Check if the product requires any hazardous goods documentation
Related Products under Tariff item 3907.21.00
Antiblaze 182 Flame Retardant
Antiblaze 182 is a flame retardant consisting of bis(polyoxyethylene) methylphosphonate in primary form, used for textile and paper coatings. Its chemical composition matches the tariff item's precise specification, and it is not excluded by Chapter 39 notes.
Phosflex 71B Flame Retardant
Phosflex 71B is a commercial grade of bis(polyoxyethylene) methylphosphonate used as a low-viscosity reactive flame retardant. It matches the tariff item's chemical description and is presented in primary form.
TEP-Enhanced BPEMP Polyether
TEP-Enhanced BPEMP Polyether is a triethyl phosphate-modified bis(polyoxyethylene) methylphosphonate formulation with over 95% named polymer content. It qualifies under the tariff item as the core monomer units predominate, per subheading note 1(a)(1).