Naphthalene Sulfonate Dispersant from Mexico
Naphthalene Sulfonate Dispersant is an aromatic dispersant used in pigments, dyes, concrete admixtures, and inks. It qualifies as an organic surface-active agent under tariff item 3402.49.00 due to its fused aromatic ring structure and surface-active properties. As a commercial product, it is typically a mixture, not a separate chemically defined compound, and is not put up for retail sale.
Duty Rate — Mexico → Canada
6.5%
Import Tips
• Ensure the dispersant is not a pure separate chemically defined compound; commercial mixtures are classifiable here
• Provide technical documentation showing surface-active properties for customs clearance
• Check if the product contains other additives that could shift classification to a preparation