Chapter 55: Man-made staple fibers

HTS heading 5501: Synthetic filament tow

9 numbered lines under heading 5501, including 7 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 5501
HTS codeDescriptionUnitGeneralSpecialColumn 2
5501Synthetic filament tow:
Of nylon or other polyamides:
5501.11.00.00Of aramidskg7.5%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)45%
5501.19.00.00Otherkg7.5%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)45%
5501.20.00.00Of polyesterskg7.5%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)45%
5501.30.00Acrylic or modacrylic7.5%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)45%
5501.30.00.10Containing 92 percent or more by weight of acrylonitrile units with filaments numbering fewer than 70,000 (+/-2000) with filament diameter 1.59 decitex (plus or minus 0.027) or less, or in a separable tow construction capable of being separated into tows of 70,000 (+/-2000) or fewer with filament diameter 1.59 decitex (plus or minus 0.027) or less.kg
5501.30.00.90Otherkg
5501.40.00.00Of polypropylenekg7.5%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)45%
5501.90.01.00Otherkg7.5%Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)45%

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.