Mitsui Chemicals announced on November 9, 2026, that it will acquire semiconductor materials maker JSR from state-backed Japan Investment Corp. for $11.6 billion [1]. This transaction represents one of the largest acquisitions in the history of Japan's chemical sector [1]. The deal is part of a broader strategic initiative to restructure Japan's national semiconductor supply chain [1]. The acquisition positions Mitsui Chemicals as a leader in the chip materials industry [1], strengthening Japan's domestic capabilities in a critical sector of the global semiconductor ecosystem. The transaction was announced jointly by the heads of JSR, Mitsui Chemicals, and Japan Investment Corp. [1].
CONCLUSION
This $11.6 billion acquisition marks a significant consolidation in Japan's semiconductor materials sector, with Mitsui Chemicals emerging as a dominant player. The deal reflects Japan's strategic focus on securing and restructuring its semiconductor supply chain amid global competition in the chip industry.