Subheading 5206.41 · Section XI
Cotton yarn; (not sewing thread), multiple or cabled, of combed fibres, less than 85% by weight of cotton, 714.29 decitex or more (not exceeding 14 metric number) per single yarn, not for retail sale
Source: Harmonized System 2022 edition (World Customs Organization), from the UN Comtrade classification list.