(Global Times): China’s Ministry of Commerce (MOFCOM) announced on Wednesday that it has decided to initiate an anti-dumping investigation into imports of dichlorosilane (DCS) originating from Japan, in accordance with relevant laws and regulations, with immediate effect.
Dichlorosilane is mainly used in thin-film deposition during the chip manufacturing process and is applied in the production of logic chips, memory chips, analog chips and other types of semiconductors, according to the MOFCOM. The MOFCOM received a formal application for an anti-dumping investigation on December 8, 2025, submitted by Tangshan Sunfar Electronic Materials Co., Ltd. on behalf of China’s dichlorosilane industry. The applicant requested that an anti-dumping probe be initiated into imports of dichlorosilane originating from Japan.
In accordance with the relevant provisions of the anti-dumping regulations of China, the MOFCOM conducted a review of the applicant’s eligibility, the products under investigation, the domestic like products, the impact of the products under investigation on China’s domestic industry, and matters related to the country under investigation.
Based on the evidence provided by the applicant and the MOFCOM’s preliminary review, the applicant’s production of dichlorosilane meets the requirements set out in the anti-dumping regulations. As of the date of issuance of this announcement, the ministry has initiated an anti-dumping investigation into imports of dichlorosilane originating from Japan. The dumping investigation period for this case is from July 1, 2024, to June 30, 2025, and the injury investigation period is from January 1, 2022, to June 30, 2025.
