Subheading 5206.23 · Section XI
Cotton yarn; (not sewing thread), single, of combed fibres, less than 85% by weight of cotton, less than 232.56 but not less than 192.31 decitex (exceeding 43 but not exceeding 52 metric number), not for retail sale
Source: Harmonized System 2022 edition (World Customs Organization), from the UN Comtrade classification list.