China’s Ministry of Commerce has issued questionnaires as part of an anti-dumping investigation into certain analog chips imported from the United States.

The probe was announced on September 13, 2025, under Ministry of Commerce Announcement No. 27, targeting analog chips classified under tariff code 85423990 of the China Harmonized System for Import and Export Duties. Other products within the same tariff category are not included in the scope of this investigation.