This investigation was initiated in response to a petition filed by the domestic industry. Preliminary evidence submitted by the petitioner indicates that from 2022 to 2024, the volume of dichlorodihydrosilane imported from Japan showed an overall upward trend, while prices fell by a cumulative 31 percent. The investigation determined that the dumped imports from Japan have caused injury to the production and operations of the domestic industry. Upon receiving the petition, the investigating authority reviewed it in accordance with relevant Chinese laws and regulations and in compliance with WTO rules. It determined that the petition met the criteria for initiating an anti-dumping investigation and decided to launch the investigation. The investigating authority will conduct the investigation in accordance with the law, fully safeguard the rights of all interested parties, and render an objective and impartial ruling based on the findings of the investigation.