Japan said it will work with companies affected by China’s provisional anti-dumping measures on Japanese dichlorosilane, a semiconductor material subject to import deposits of up to 99.2% from Sept. 8. Chief Cabinet Secretary Minoru Kihara and Minister of Economy, Trade and Industry Ryosei Akazawa said the government would assess the investigation and its business impact to prevent unfair harm to Japanese operations. China’s Ministry of Commerce preliminarily found that Japanese dichlorosilane was dumped and had injured domestic producers. Shin-Etsu Chemical and most other Japanese producers face a 99.2% deposit rate, while Denal Silane faces 80.8%. Japan also renewed its protest over China’s January 2026 tightening of export controls on dual-use goods bound for Japan, calling country-specific restrictions contrary to international practice and demanding their withdrawal. The anti-dumping investigation opened on Jan. 7, 2026 and is due for a final determination by Jan. 7, 2027, with a possible six-month extension.