HTS code 9902.17.18 covers "Projection screens, each measuring 11 m or more but not over 22 m in width, of acoustically transparent perforated material (provided for in subheading 9010.60.00)" 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.