Overview
- The Commerce Ministry announced the investigation on Jan. 7 with a one-year timeline and a possible six-month extension, generally concluding before Jan. 7, 2027.
- Authorities will review alleged dumping from July 1, 2024 to June 30, 2025 and evaluate injury to Chinese producers from Jan. 1, 2022 to June 30, 2025.
- The case was triggered by an industry application citing increased Japanese import volumes from 2022 to 2024 and a cumulative 31% price decline.
- A ministry-published industry list identifies Shin-Etsu Chemical, Air Liquide Japan G.K. and Mitsubishi Chemical Group as named exporters.
- Dichlorosilane is essential for thin-film deposition in semiconductor manufacturing, and the move follows China’s new export controls on dual-use items to Japanese military-linked end users.