In response to China’s new export restrictions on dichlorosilane (DCS), a chemical crucial for semiconductor manufacturing, Japan has lodged a protest. The Japanese government is currently evaluating the potential repercussions for its domestic companies. These restrictions mandate that Chinese importers of DCS from Japan must provide cash deposits of up to 99.2%, impacting Japanese firms such as Shin-Etsu Chemical and Denal Silane.
China has justified these measures as provisional, claiming they were implemented following an anti-dumping investigation that suggested Japanese DCS exports were detrimental to Chinese industries. The final outcome of this investigation will determine whether these restrictions remain in place. Meanwhile, Japan has called on China to ensure that these measures do not unjustly harm Japanese businesses and has indicated it is prepared to take further action if necessary.
This development occurs against a backdrop of increasing tension between China and Japan, particularly in light of Japan’s stance on Taiwan. In addition to the DCS restrictions, China has introduced other trade and export limitations affecting Japanese companies, especially concerning products with dual-use potential that could have military applications.
Dichlorosilane plays a vital role in the semiconductor manufacturing process, where it’s used to form ultrathin silicon layers on computer chips. Given Japan’s status as a leading global producer of ultrapure DCS, the newly enforced restrictions could have significant implications for the semiconductor supply chain worldwide.