DMMP for Polyurethane Foam Production from Mexico
This specialty grade of dimethyl methylphosphonate is optimized for reactive flame retardancy in flexible polyurethane foams. It is a pure non-halogenated organo-phosphorus compound, chemically identical to standard DMMP, and therefore classified under tariff item 2931.41.00. The product's specific application does not alter its chemical classification under Chapter 29.
Duty Rate — Mexico → Canada
Import Tips
• Even though the product is marketed for a specific application, classify it as a separate chemically defined compound under 2931.41.00, not as a preparation
• Provide technical data sheets to CBSA demonstrating the product is pure DMMP without additives that would change its classification
• Consider whether the product qualifies for duty relief under customs programs if used in manufacturing in Canada