Artificial Filament Single Yarn (Not for Retail Sale), NESOI

Artificial filament single yarns not put up for retail sale — covering viscose, modal, cupro, and other regenerated-cellulose filament types not elsewhere specified — are industrial inputs for weaving, knitting, and technical textile production. The US schedule includes two active lines under this heading: 5403399000 for general NESOI single yarns and 5403399040 for multifilament yarns under 67 decitex with a twist exceeding 5 turns per meter, a specification relevant to fine-denier fabric construction. Japan and Pakistan are the leading suppliers, with Italy, Vietnam, and Spain also among the top sources — a mix reflecting both high-quality specialty production and cost-competitive volume supply. Textile importers should note that fiber content and decitex thresholds are determinative for correct 10-digit classification.