On May 9, 2019, USTR issued a notice to "modify the action being taken in this Section 301 investigation by increasing the rate of additional duty from 10 percent to 25 percent for the products of China covered by the September 2018 action in this investigation. The Trade Representative has further determined to establish a process by which interested persons may request that particular products classified within a tariff subheading covered by the September 2018 action be excluded from the additional duties."