HTS code 9902.14.88 covers "Silver wire, containing 90 percent or more by weight of silver, but not more than 93 percent by weight of silver, and containing 6 percent or more by weight of tin oxide, but not more than 9 percent by weight of tin oxide (provided for in subheading 7106.92.50) " 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.