Hexamethylenetetramine Flake Form from Mexico
Hexamethylenetetramine flake form is a physical variant of the chemically defined compound, which does not affect its classification under tariff item 2933.69.00. The unfused triazine ring structure qualifies it as a heterocyclic compound with nitrogen hetero-atoms only, per Chapter 29 Note 1(a).
Duty Rate — Mexico → Canada
0%
Import Tips
• Physical form (flake, powder, etc.) does not change classification, but ensure the product is not put up for retail sale
• Provide the chemical name and CAS number on documentation
• Verify the product is not excluded under Chapter 29 Note 2(ij) for fuel forms