High-Tg Bismaleimide Resin Flakes
High-Tg bismaleimide-triazine copolymer flakes, a thermosetting resin in primary form for composite prepreg production. Offers a glass transition temperature above 250°C for demanding telecom applications. Classified under tariff item 3911.90.00 as an 'other' product specified in Note 3 to Chapter 39, not elsewhere specified or included.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the resin is an epoxy-based polymer rather than bismaleimide-triazine
Epoxy resins are classified under heading 39.07, which covers polyethers and epoxy resins in primary forms.
If imported as plates, sheets, film, foil, or strip rather than in primary form
Finished or semi-finished plastic shapes fall under headings 39.20 or 39.21, not heading 39.11.
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 flakes are in primary form (e.g
• flakes, granules) and not further worked, as per Chapter 39 Note 6
• Verify the bismaleimide-triazine copolymer composition meets the 95% monomer unit threshold for classification under this item
• Keep detailed technical documentation to support the tariff classification if questioned by the CBSA
Related Products under Tariff item 3911.90.00
Aerospace-Grade Cyanate Ester Resin
Aerospace-grade cyanate ester resin, a hydrocarbon novolac cyanate ester thermosetting polymer in primary form, used for RTM processing in aircraft radomes. It is classified under tariff item 3911.90.00 as a product specified in Note 3 to Chapter 39, not elsewhere specified or included.
Aerospace-Grade Elastomeric Polysulfide Sealant Resin
Aerospace-grade elastomeric polysulfide sealant resin in primary liquid form, used for fuel tank coatings. It is a polysulfide polymer specified in Note 3 to Chapter 39, not elsewhere classified, and falls under this tariff item as 'Other' products in primary forms.
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Aromatic Polysulfone PSU 1700
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Aromatic Terpene Phenolic Resin
Aromatic terpene phenolic resin, a thermoplastic derived from terpenes and phenolic aromatics, in primary form. It is classified under tariff item 3911.90.00 as a product specified in Note 3 to Chapter 39, not elsewhere specified or included.