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

Heading 5508 of the US Harmonized Tariff Schedule covers Sewing thread of man-made staple fibers, whether or not put up for retail sale. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.

Official USITC HTS, 2026HTSRev22 · check on hts.usitc.gov

Heading 5508 at a glance

Goods named in this heading (official line texts): Of synthetic staple fibers (200), Of artificial staple fibers (200).

Subheadings (6-digit)

All tariff lines in heading 5508

LineDescriptionGeneralSection 301 (China)Exclusions
5508.10.00Of synthetic staple fibers (200)11.4%List 3 +25%
5508.20.00Of artificial staple fibers (200)11%List 3 +25%

All of chapter 55 · Chapter 55 rate summary · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.

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