Section 301 semiconductor investigation and tariffs
USTR determined China’s semiconductor policies are unreasonable and burden U.S. commerce. An initial 0% rate applies as of December 23, 2025 on identified Chinese semiconductors, rising June 23, 2027 to a final rate announced no later than May 24, 2027, on 18 HTS subheadings already subject to 50% Section 301 tariffs.
