Si-Ro Set Polyester-Cotton Yarn for Denim from China

Si-Ro (siro-spun) yarn with 35% polyester staple and 65% cotton for slubby denim shirting. Under HTS 5509.92.00.00 as synthetic staple yarn mixed mainly cotton; siro technique mimics two-ply. Bulk for shuttleless loom weaving.

Duty Rate — China → United States

42.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)

Import Tips

Describe siro spinning process to distinguish from standard ring

Two-for-one twist effect needs technical specs

Denim end-use common; include buyer contracts showing industrial intent