HTS 5509.51

Mixed mainly or solely with artificial staple fibers

Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale › Other yarn, of polyester staple fibers

As of Revision 22 (2026), effective Oct 30, 2026Source: USITC HTS ↗

Chapter 99 measures listing products under 5509.51

9903.05.95 Country provisionsNo additional duty
Articles of textiles or apparel the product of Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras or Nicaragua, as provided for in subdivision (i) of U.S. note 52 to this subchapter
Costa Rica Dominican Republic El Salvador Guatemala Honduras Nicaragua2 listed products
9903.88.03 Section 301+25%
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided…
China2 listed products

HTS	Description	General	Column 2
5509.51.30.00	Single yarn (607)	9.7%	54%
5509.51.60.00	Multiple (folded) or cabled yarn (607)	10.6%	61.5%