Supima Cotton 46 nm Double Mercerized Yarn from Japan
Double mercerized combed Supima cotton yarn at 46 nm single yarn fineness (43-52 nm), >85% cotton, for high-end apparel weaving, not retail put-up. Mercerization enhances luster but doesn't alter HTS classification per notes. HTS 5205.43.00 for combed multiple yarns in specified nm range.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Mercerization requires fiber content declaration; treatment doesn't change heading but ensure post-process weight for nm
• Bulk cones only—no retail skeins; pitfall is partial retail packing triggering 5205 retail subheadings
• Test for excessive sizing removal per notes before nm calculation to prevent overcount errors