Lignin Sulfonate Sodium Salt from Japan
Lignin sulfonate sodium salt is a sulfonated derivative of lignin, a complex phenolic polymer, containing sulfo groups. It is used as a binder in concrete and other industrial applications. Under the Customs Tariff of Canada, it is classified in tariff item 2908.99.00 as a sulfonated derivative of phenols or phenol-alcohols, provided it meets chemical purity standards.
Duty Rate — Japan → Canada
0%
Import Tips
• Confirm the product is a chemically defined compound; if it is a complex mixture of lignin derivatives, it may be classified in Chapter 38
• Verify the product is not put up for retail sale as a formulated binder
• Provide the sulfonate content and purity data to the CBSA