中国为啥对日本芯片材料反倾销立案调查？

Core Viewpoint - The Ministry of Commerce of China has announced an anti-dumping investigation into imported dichlorodihydrosilane from Japan, effective January 7, 2026, following a formal application from a domestic producer [1][3][5]. Group 1: Investigation Background - The application for the anti-dumping investigation was submitted by Tangshan Sanfu Electronic Materials Co., Ltd., representing the domestic dichlorodihydrosilane industry [3]. - The Ministry of Commerce conducted a review based on the qualifications of the applicant, the product in question, the domestic industry situation, and the impact of the imported product on the domestic industry [3][5]. Group 2: Product and Market Impact - Dichlorodihydrosilane is primarily used in the semiconductor manufacturing process for thin film deposition, including epitaxial films, silicon carbide films, silicon nitride films, silicon oxide films, and polysilicon films [5]. - The product is essential for producing logic chips, memory chips, analog chips, and other types of chips, as well as for synthesizing silicon-based precursors and polysilazane [5]. Group 3: Investigation Findings - Preliminary evidence from the applicant indicates that from 2022 to 2024, the quantity of dichlorodihydrosilane imported from Japan has shown an overall upward trend, while prices have decreased by 31% cumulatively [8]. - The Ministry of Commerce has determined that the dumping of imported products from Japan has caused damage to the domestic industry, leading to the decision to initiate the investigation [8].