HS Code for Ester gum

Ester gum is classified under HS code 3806.30. This product is a chemical derivative of rosin or resin acids. Heading 3806 covers rosin and resin acids, and their derivatives, including rosin spirit and rosin oils. Ester gum is specifically produced by the esterification of natural rosin with polyhydric alcohols, most commonly glycerol or pentaerythritol. This chemical modification alters the physical properties of the rosin, such as its melting point and acid value, making it suitable for industrial applications like the production of varnishes, lacquers, and adhesives, or as a clouding agent in beverages. The classification follows GRI 1, as the product is explicitly named in the subheadings of 3806. It is important to note that while it is a resinous substance, it is classified in Chapter 38 (Miscellaneous chemical products) rather than Chapter 39 (Plastics) because it is a modified natural resin rather than a fully synthetic polymer.

Products Included

• Glycerol esters of rosin
• Pentaerythritol esters of rosin
• Esterified resin acids
• Ester gum used as a food stabilizer
• Ester gum for adhesive formulations
• Ester gum for paint and varnish manufacturing

Common Misclassification

Ester gum is frequently confused with unmodified rosin, which is classified under HS code 3806.10. The key difference is the chemical process of esterification; once the rosin has reacted with an alcohol, it must move to 3806.30. It is also sometimes misclassified in heading 3907 (polyacetals and other polyethers) due to its resinous nature and use in coatings. However, Chapter 39 generally excludes modified natural resins like ester gums when they are specifically provided for in Chapter 38. Additionally, if the ester gum is prepared as a finished adhesive, it might be incorrectly placed in 3506, but in its raw resinous form, 3806.30 is the correct designation.

FAQ

What is the HS code for Ester gum?

The specific HS code for ester gums, which are glycerol or pentaerythritol esters of rosin, is 3806.30.

Is ester gum used in food classified differently?

Even when used as a food additive (e.g., in chewing gum or beverages), the product is still chemically an ester gum and remains classified under HS code 3806.30.