HTS code 9902.13.41 covers "Woven fabrics of modal staple rayon fibers, containing over 50 percent but less than 85 percent by weight of such fibers, dyed, mixed mainly or solely with cotton, such fabrics weighing more than 270 g/m2 but not more than 340 g/m2, of yarns of number 42 or lower number, of a thread count of 150 to 160 per cm2, napped (provided for in subheading 5516.42.00)" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.