The U.S. Customs and Border Protection (CBP) made changes to the Harmonized Tariff Schedule (HTS) to extend the 10% duty rate on HTS 9903.88.03, as noted in Cargo System Messaging Service #19-000088. The duty rate was set to increase on March 2, 2019 to 25% for goods that were subject to the third round of Section 301 tariffs.
Further updates are possible after the forthcoming Federal Register notice is published.
The update can be found here.