HS Code for Isoprene rubber

Isoprene rubber (IR) is classified under HS code 400260. This code is part of Chapter 40, which covers rubber and articles thereof. Heading 4002 specifically addresses synthetic rubber and factice derived from oils, in primary forms or in plates, sheets, or strips. Subheading 400260 is dedicated to isoprene rubber, which is a synthetic polymer (polyisoprene) designed to mimic the properties of natural rubber. The classification is based on the chemical composition of the elastomer. To fall under this code, the material must meet the definition of "synthetic rubber" provided in the Chapter 40 notes, which typically involves the ability to be cross-linked with sulfur and undergo non-reversible deformation. The form of the product—whether it is in primary forms like blocks, crumbs, or powders, or in unvulcanized plates and sheets—is also a critical factor in applying this specific code. Because isoprene rubber is chemically similar to natural rubber but produced synthetically, its distinction from harvested latex products is essential for correct tariff application and trade monitoring.

Products Included

• Synthetic polyisoprene (IR) in blocks
• Isoprene rubber sheets (unvulcanized)
• Isoprene rubber crumbs or powders
• Synthetic rubber slabs of polyisoprene

Common Misclassification

The most common misclassification is with natural rubber, which falls under HS code 4001. While chemically similar, natural rubber is harvested from plants, whereas 400260 is strictly for the synthetic version. It may also be confused with compounded rubber under HS code 4005 if it has been mixed with carbon black or silica before export.

FAQ

What is the HS code for Isoprene rubber?

The HS code for synthetic isoprene rubber (IR) in primary forms or in plates, sheets, or strips is 400260.

Can vulcanized isoprene rubber be classified here?

No, HS code 400260 applies only to unvulcanized synthetic rubber. Vulcanized rubber products are classified elsewhere in Chapter 40, depending on their form and use.