Japan has expressed strong opposition to China’s new export constraints on dichlorosilane (DCS), a chemical essential for semiconductor production. The Japanese government is currently evaluating how these restrictions might affect its domestic companies. The new Chinese measures stipulate that importers in China must provide cash deposits of up to 99.2% for DCS imported from Japan. This decision directly impacts Japanese firms such as Shin-Etsu Chemical and Denal Silane.
According to Chinese authorities, these restrictions are temporary and were initiated following an anti-dumping investigation. The investigation concluded that Japanese exports of DCS have negatively impacted China’s local industry. A conclusive judgment will be reached once the investigation wraps up. In response, Japan has urged China to ensure that these measures do not disproportionately harm Japanese businesses, warning that it may take necessary actions if deemed unfair.
The backdrop of this development is the progressively strained relations between China and Japan, particularly concerning Japan’s stance on Taiwan. This tension has seen Beijing enforce various trade and export limitations affecting Japanese enterprises and products with dual-use capabilities that could serve military purposes.
DCS plays a crucial role in semiconductor manufacturing by enabling the creation of ultra-thin silicon layers on computer chips. Given that Japan is a leading global supplier of high-purity DCS, the newly imposed restrictions could have significant implications for the semiconductor supply chain.