Japan has lodged a protest against China’s recent decision to enforce new export restrictions on dichlorosilane (DCS), a crucial chemical in the semiconductor manufacturing process. These restrictions require Chinese importers of DCS originating from Japan to make cash deposits as high as 99.2%. Major Japanese exporters of this chemical include Shin-Etsu Chemical and Denal Silane, who could be significantly impacted by these measures. Japan is currently evaluating the potential repercussions on its companies.
The Chinese government has described these restrictions as provisional, initiated following an anti-dumping investigation that concluded Japanese DCS exports have adversely affected China’s local industry. The final outcome will be determined upon the conclusion of this investigation. In response, Japan has urged China to ensure that such measures do not unjustly harm Japanese businesses and has indicated that it is prepared to take necessary actions if required.
This development is set against a backdrop of deteriorating relations between China and Japan, particularly over Japan’s stance regarding Taiwan. China has also implemented additional trade and export restrictions, specifically targeting Japanese firms and products that have potential military applications, further straining bilateral ties.
Dichlorosilane plays an essential role in the semiconductor industry, where it is used to form ultra-thin layers of silicon and other materials on computer chips. As a leading global supplier of ultrapure DCS, Japan’s position in the semiconductor supply chain makes these new export restrictions particularly impactful, potentially affecting the broader industry’s production capabilities.