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Nylon 6 Single Yarn 40 Denier from China

A single, untwisted synthetic filament yarn made from nylon 6 polyamide, with a fineness of 40 denier (less than 67 decitex), used in textile weaving and knitting. It falls under HTS 5402.45.90 as other nylon/polyamide yarn, single, with twist not exceeding 50 turns/m, not for retail sale. This classification applies to industrial spools for manufacturing apparel and technical fabrics.

Duty Rate — China → United States

45.5%

Rate breakdown

9903.88.0325%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 for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Verify yarn denier/decitex and twist measurement (≤50 turns/m) via lab testing to confirm HTS 5402.45.90 classification and avoid reclassification to twisted yarn headings

Provide mill test certificates and yarn composition analysis (≥85% polyamide) as documentation for customs; common pitfall is mislabeling as sewing thread

Ensure packaging is in large cones or beams (not retail put-up) to prevent shift to Chapter 55; declare exact linear density accurately