The investigation authorities initially determined that there was dumping of the investigated products originating in Japan, that the domestic dichlorodihydrogen silicon industry had suffered material damage, and that there was a causal relationship between dumping and material damage. According to the provisions of Articles 28 and 29 of the Anti-Dumping Regulations, the investigation authority decided to implement temporary anti-dumping measures in the form of a security deposit. Starting from September 8, 2026, import operators shall provide corresponding security deposits to the Customs of the People's Republic of China in accordance with the guarantee ratio of each company determined in this preliminary ruling when importing the investigated products.

The investigation authorities initially determined that there was dumping of the investigated products originating in Japan, that the domestic dichlorodihydrogen silicon industry had suffered material damage, and that there was a causal relationship between dumping and material damage. According to the provisions of Articles 28 and 29 of the Anti-Dumping Regulations, the investigation authority decided to implement temporary anti-dumping measures in the form of a security deposit. Starting from September 8, 2026, import operators shall provide corresponding security deposits to the Customs of the People's Republic of China in accordance with the guarantee ratio of each company determined in this preliminary ruling when importing the investigated products.