Chapter 55: Man-made staple fibers

HTS heading 5508: Sewing thread of man-made staple fibers, whether or not put up for retail sale

3 numbered lines under heading 5508, including 2 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 5508
HTS codeDescriptionUnitGeneralSpecialColumn 2
5508Sewing thread of man-made staple fibers, whether or not put up for retail sale:
5508.10.00.00Of synthetic staple fibers (200)kg11.4%Free (AU,BH,CL,CO,IL,JO,KR,MA,OM,P,PA,PE,S,SG)55%
5508.20.00.00Of artificial staple fibers (200)kg11%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)55%

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.