Beijing's new anti-dumping duties on Japanese dichlorosilane, reaching 99.2%, will end up benefiting South Korean and European chip-material suppliers rather than Chinese producers.

Made

8 Sep 2026

Marco Law

Market

China, Japan

Outcome

Unresolved

The duties originate from a complaint lodged by Chinese chemicals manufacturer Tangshan Sunfar, yet Sunfar's own 2025 annual report admits domestic semiconductor-grade dichlorosilane output remains scarce, with capacity geared towards lower-grade industrial variants for solar polysilicon. With Japanese supply priced out, established South Korean and European gas makers, not untested Chinese rivals, are best placed to fill the gap, entrenching China's foreign supply chain dependence rather than delivering import substitution.

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