Calculating Dehairing Yield Mass Balance across High Guard Hair Batches
Calculate dehairing yield by converting raw mass to clean dry keratin weight, subtracting guard hair and dirt losses, and normalizing to 17% commercial regain.
Customs Heading 5102
Tariff Classification
Numerical coding of fine or coarse animal hair, not carded or combed, under the Harmonized System ensures uniform duty assessment across international borders. This category is designated as customs heading 5102, which covers premium fibers such as cashmere, mohair, alpaca, and rabbit hair.
Material Scope
Exclusions from this trade category include wool, which is classified separately, and animal hair that has undergone combing or carding processes. Within customs heading 5102, the trade distinguishes between fine animal hair, typically used for luxury garments, and coarse animal hair, used for felt and interlinings. Importers must declare the specific animal origin to avoid misclassification penalties and to comply with natural resource conservation laws.
This distinction prevents the commingling of high-value cashmere with coarser hair types.
Import Duty
Custom authorities use the classification to apply correct tariff rates based on the country of origin and trade agreements. A shipment filed under customs heading 5102 may enjoy duty-free entry under preferential regional trade agreements or face specific anti-dumping duties depending on the processing stage. Correct classification ensures smooth customs clearance.
Document Verification
Shipping invoices and certificates of origin must align with the declared tariff codes to pass border inspections. Border agents frequently verify samples filed under customs heading 5102 by laboratory analysis to confirm that the fiber diameter corresponds to the declared classification.