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SITCSection 2
U.S. imports of degreased, carbonized wool (not carded or combed) (SITC 26829) totaled $164K in April 2026, traded with 7 countries.
Importers of Degreased, Carbonized Wool (Not Carded or Combed) paid $16K in duties in April 2026 — an effective duty rate of 9.4% on $164K in dutiable value, based on actual customs collections rather than the published tariff schedule. Degreased, Carbonized Wool (Not Carded or Combed) imports of $164K in April 2026 ran 278% above the year-to-date monthly average of $43K.
Last updated: April 2026 dataCarbonizing is a chemical process that removes vegetable matter from wool using acid treatment, producing a cleaner fiber than scouring alone — making this grade particularly valued by worsted and woolen spinners who need low vegetable-matter content. Degreased, carbonized wool in this unprocessed state sits at an early stage of the textile supply chain, before carding or combing align the fibers for spinning. Importers should note that classification hinges on the fiber remaining in loose, non-aligned form; any subsequent carding or combing shifts the product to a different heading.
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Carbonizing goes beyond degreasing: the wool is treated with a dilute acid solution and then heated to char and remove embedded vegetable matter (seeds, burrs, straw). The result is a purer fiber with significantly lower vegetable-matter content than scoured-only wool, which is why it commands a premium for fine worsted spinning.
As long as the fibers remain loose and unaligned, the product stays in the degreased/carbonized category. Once the wool undergoes carding or combing — processes that align fibers for spinning — it moves to a separate classification covering carded or combed wool, which carries different duty treatment.
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Monthly import values over time