The preliminary ruling targets a vital material that Chinese manufacturers have historically imported from Japan and comes amid continued bilateral friction
2-MIN READ2-MINJi Siqiin BeijingPublished: 7:27pm, 7 Sep 2026China will impose provisional anti-dumping duties of up to 99.2 per cent on Japanese dichlorosilane, a critical chemical used in chipmaking, after an eight-month investigation found that dumped imports had harmed local manufacturers.
The Ministry of Commerce announced the preliminary ruling on Monday, saying importers of dichlorosilane originating from Japan would be required to pay corresponding cash deposits from Tuesday.
Shipments from Denal Silane, a manufacturer of semiconductor speciality gases, will be subject to a lower cash deposit rate of 80.8 per cent. Other Japanese companies, including Shin-Etsu Chemical – a major global supplier of semiconductor silicon wafers and electronic chemicals – will face the maximum rate.
“China has consistently applied trade remedy measures in a prudent and restrained manner, remaining firmly committed to safeguarding fair and free trade,” the ministry said in a statement on Monday.
“Moving forward, we will continue the investigation in compliance with the law, fully guarantee the rights of all interested parties, and make an objective and impartial final determination based on the investigation findings,” it added.
Dichlorosilane is mainly used in thin-film deposition processes in semiconductor manufacturing and plays an important role in producing various types of chips. Beijing launched the anti-dumping investigation in January.
