HS Code for Coumarone-indene resin

Coumarone-indene resin is classified under HS code 3911.10. This falls under Chapter 39, which covers plastics and articles thereof. Heading 3911 is dedicated to "Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and other products specified in Note 3 to this Chapter, not elsewhere specified or included, in primary forms." Coumarone-indene resins are coal-tar derived synthetic resins produced by the polymerization of the coumarone and indene fractions of coal-tar light oils. They are widely used in the manufacture of floor tiles, adhesives, and coatings. The "primary forms" designation is crucial; it refers to liquids and pastes, including dispersions (emulsions and suspensions) and solutions, or blocks of irregular shape, lumps, powders, granules, flakes, and similar bulk forms. As a synthetic polymer not specifically mentioned in earlier headings of Chapter 39, it is correctly placed in 3911. This classification is supported by Chapter Note 3 to Chapter 39, which defines the scope of products covered under heading 3911. These resins are generally low molecular weight polymers and are often used as tackifiers or processing aids in rubber compounding. Because they are chemically distinct from the more common polyethylenes or polypropylenes found in earlier headings, they require this specific classification. The 3911.10 subheading specifically isolates the coumarone, indene, or coumarone-indene resins from other petroleum-based resins.

Products Included

• Coumarone resins in primary forms
• Indene resins in primary forms
• Mixed coumarone-indene resins
• Polymerized coal-tar resins

Common Misclassification

A common misclassification occurs with HS code 3907.91 or 3907.99 (other polyesters) because of the resinous nature of the product. However, coumarone-indene resins are chemically distinct from polyesters. Another error is using 2707.99, which covers other products of the distillation of high temperature coal tar. While the raw materials come from coal tar, once they are polymerized into a resin, they must be classified in Chapter 39. Additionally, if the resin is already shaped into a finished product, such as a floor tile, it would move to 3918 instead of 3911.

FAQ

What is the HS code for coumarone-indene resin?

The HS code for coumarone-indene resin in primary forms is 3911.10.

What are primary forms in HS classification?

Primary forms include liquids, pastes, blocks, lumps, powders, granules, and flakes. Once the resin is molded or extruded into a specific shape, it is no longer in a primary form.