Polyglycol Ester of Methylphosphonic Acid Flame Retardant
> A specific polyglycol ester of methylphosphonic acid used as a flame retardant additive in polyurethane foams and plastics. It is classified under tariff item 3824.92.00 because the item explicitly covers polyglycol esters of methylphosphonic acid, and the product is not elsewhere specified.
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 product is a blend of different phosphonate esters or contains other additives
Residual heading for chemical products applies when the product is not solely the named ester.
If the product is formulated as an insecticide or pesticide
Preparations for plant protection are classified in heading 38.08 when they have biocidal function.
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
• > Ensure the product is not put up in measured doses or for retail sale, as that could shift classification under Section VI notes
• Provide a certificate of analysis to confirm the ester's identity for CBSA
• If the product is used in food-contact applications, verify compliance with Canadian food safety regulations
Related Products under Tariff item 3824.92.00
Antifoam Additive Based on Polyglycol Methylphosphonate
> An industrial antifoam agent composed of polyglycol esters of methylphosphonic acid, used to control foam in chemical manufacturing and wastewater treatment processes. It falls under tariff item 3824.92.00 because it is a chemical preparation based on the specific ester named in the item, and it is not elsewhere specified or included.
Fire-Resistant Coating Additive Polyglycol Phosphonate
> A reactive additive for intumescent fire-resistant coatings, consisting of polyglycol esters of methylphosphonic acid. It is classified under tariff item 3824.92.00 because the item specifically covers these esters, and the product is a chemical preparation for use in the coatings industry.
Flame Retardant Concentrate 75% Polyglycol Phosphonate
> A high-concentration (75%) masterbatch of polyglycol esters of methylphosphonic acid used for compounding into thermoplastics to impart flame retardancy. It falls under tariff item 3824.92.00 as it is a preparation based on the specific named ester, and it is not a finished plastic article.
Polyglycol Methylphosphonate Hydraulic Fluid Stabilizer
> A chemical stabilizer for synthetic hydraulic fluids based on polyglycol esters of methylphosphonic acid, enhancing thermal stability and preventing degradation. It falls under tariff item 3824.92.00 as a chemical preparation of the named ester, not elsewhere specified or included.
Polyglycol Methylphosphonate Plasticizer for Polymers
> A plasticizing agent derived from polyglycol esters of methylphosphonic acid, used to enhance flexibility in PVC and other polymers. It is covered by tariff item 3824.92.00 as a chemical preparation of the specific ester, and it is not a finished plastic product.