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TEP-Enhanced BPEMP Polyether from Mexico

TEP-Enhanced BPEMP Polyether is a formulation of bis(polyoxyethylene) methylphosphonate modified with triethyl phosphate, maintaining over 95% of the named polymer content. It is classified under tariff item 3907.21.00 per subheading note 1(a)(1), as the core monomer units of the named polymer predominate by weight.

Duty Rate — Mexico → Canada

0%

Import Tips

• Document the exact weight percentage of bis(polyoxyethylene) methylphosphonate in the formulation to prove it exceeds 95%, as required by the subheading note

• Be aware that the triethyl phosphate additive may be considered a non-polymeric substance; ensure it does not exceed 1% by weight unless it is a manufacturing impurity