Ministry of Commerce: Preliminary determination that the investigated products imported from Japan are being dumped; temporary anti-dumping measures will be implemented in the form of a cash deposit.

On September 7, 2026, the Ministry of Commerce announced its preliminary ruling on the anti-dumping investigation into imported dichlorosilane originating from Japan. The investigating authority has preliminarily determined that the imported products under investigation from Japan are being dumped and that the domestic dichlorosilane industry has suffered substantial injury, with a causal relationship established between the dumping and the substantial injury. In accordance with Articles 28 and 29 of the Anti-Dumping Regulations, the investigating authority has decided to implement provisional anti-dumping measures in the form of a deposit. Effective September 8, 2026, import operators must provide the corresponding deposit to the Customs of the People's Republic of China based on the deposit rates established in this preliminary ruling for each company when importing the products under investigation. The original text is as follows: Announcement No. 37 of the Ministry of Commerce of 2026 on the Preliminary Ruling of the Anti-Dumping Investigation on Imported Dichlorosilane Originating from Japan [Issuing Authority] Bureau of Trade Relief [Document Number] Announcement No. 37 of the Ministry of Commerce of 2026 [Date of Issue] September 7, 2026 In accordance with the provisions of the Anti-Dumping Regulations of the People's Republic of China (hereinafter referred to as the "Anti-Dumping Regulations"), on January 7, 2026, the Ministry of Commerce (hereinafter referred to as the investigating authority) issued Announcement No. 2 of 2026, deciding to initiate an anti-dumping investigation on imported dichlorosilane originating from Japan (hereinafter referred to as the "product under investigation"). The investigating authority conducted an investigation into whether the product under investigation was dumped and to what extent, the damage caused to the domestic dichlorosilane industry, the extent of the injury, and the causal relationship between the dumping and the injury. Based on the investigation results and the provisions of Article 24 of the Anti-Dumping Regulations, the investigating authority has made a preliminary ruling (see attachment). The relevant matters are announced as follows: I. Preliminary Ruling The investigating authority has preliminarily determined that the imported products under investigation originating from Japan are being dumped, the domestic dichlorosilane industry has suffered substantial injury, and there exists a causal relationship between the dumping and the substantial injury. II. Collection of Deposits According to Articles 28 and 29 of the Anti-Dumping Regulations, the investigating authority has decided to implement provisional anti-dumping measures in the form of a deposit. Effective September 8, 2026, import operators must provide the corresponding deposit to the Customs of the People's Republic of China based on the deposit rates established in this preliminary ruling for each company when importing the products under investigation. The specific description of the product under investigation is as follows: Scope of Investigation: Imported dichlorosilane originating from Japan. Name of the Product Under Investigation: Dichlorosilane, also known as dichlorosilane, dichloromethylsilane, etc. English Name: Dichlorosilane (abbreviated as DCS). Chemical Molecular Formula: SiH2Cl2 Structural Formula: Physical-Chemical Properties: Dichlorosilane is a colorless, flammable, and toxic gas at room temperature and pressure, with a distinctive odor. It is soluble in organic solvents such as benzene and ether, with a purity greater than 99%. Main Uses: Dichlorosilane is primarily used in the thin film deposition processes in chip manufacturing (such as epitaxial films, silicon carbide films, silicon nitride films, silicon oxide films, and polysilicon films) and for producing logic chips, memory chips, analog chips, and other types of chips. It can also be used to synthesize silicon-based precursors and polysilazane, etc. This product is classified under the Import and Export Tariff of the People's Republic of China: 28539090. Other products under this tariff item are not included in this investigation. The deposit rates collected from each company are as follows: 1. Shin-Etsu Chemical Co., Ltd. 99.2% 2. Denal Silane Co., Ltd. 80.8% 3. Other Japanese companies 99.2% III. Method of Collecting Deposits Effective September 8, 2026, when importing dichlorosilane originating from Japan, import operators must provide the corresponding deposit to the Customs of the People's Republic of China based on the deposit rates established in this preliminary ruling for each company. The deposit will be levied at a rate based on the customs valuation of the imported goods, calculated using the formula: Deposit Amount = (Customs Valuation of Imported Goods Deposit Collection Rate) (1 + VAT Rate on Imports). IV. Comments Interested parties may submit written comments to the investigating authority within 10 days from the date of publication of this announcement. Ministry of Commerce of the People's Republic of China September 7, 2026 This article is compiled from the Ministry of Commerce, GMTEight editor: Li Fo.