October, 2019 – AB Specialty Silicones LLC, a U.S. manufacturer and global distributor of specialty silicone products,announced today that the United States Trade Representative (USTR) has granted an exclusion for silicones in primary forms, HTSUS 3910.00.0000, subject to Section 301 tariffs. Silicone is sourced from China for use in U.S. production facilities and sold worldwide.