HS Code for Carbonized wool

Carbonized wool is classified under HS code 510130 because it represents wool that has undergone a specific chemical cleaning process to remove vegetable impurities. Unlike greasy wool or simply scoured wool, carbonized wool is treated with a dilute acid (usually sulfuric acid) and then heated. This process chars vegetable matter like burrs and seeds, making them brittle so they can be mechanically crushed and removed. According to the General Interpretative Rules (GIR) and the Explanatory Notes to Chapter 51, wool remains under heading 5101 as long as it has not been carded or combed. Subheading 510130 is specifically reserved for this carbonized state. The classification is determined by the fact that carbonization is a cleaning step rather than a mechanical preparation for spinning. This wool is typically used in high-end textile manufacturing where a high degree of purity is required to prevent defects in the final fabric. The moisture content and residual grease levels are also factors that customs authorities may examine to verify the classification, though the primary determinant is the chemical removal of vegetable matter.

Products Included

• Carbonized sheep wool in bulk
• Carbonized fleece locks
• Acid-treated wool for vegetable matter removal
• Carbonized wool not carded or combed

Common Misclassification

Carbonized wool is frequently confused with scoured wool under HS code 510121 or 510129. While both are cleaned, scoured wool has only been washed to remove grease (lanolin) and dirt, whereas carbonized wool has undergone acid treatment. Another common error is classifying it under 5105.10 or 5105.29, which are for carded or combed wool. If the wool has been mechanically aligned into slivers or tops, it must be moved to heading 5105 regardless of whether it was carbonized.

FAQ

What is the HS code for carbonized wool?

The HS code for carbonized wool that has not been carded or combed is 510130.

Does carbonized wool include wool tops?

No, wool tops are considered combed wool and are classified under heading 5105, specifically 510529, even if they were carbonized prior to combing.