Japan's Mitsui Chemicals to buy chip materials maker JSR for $11.6bn

Deal comes as part of push to restructure national semiconductor supply chain The heads of JSR, Mitsui Chemicals and Japan Investment Corp. pose for a photo after announcing the deal on Nov. 9. (Photo by Hikaru Yagi) TOKYO -- Mitsui Chemicals will purchase semiconductor materials maker JSR from state-backed Japan Investment Corp. in one of the largest acquisitions in the history of Japan's chemical sector, a deal that positions Mitsui as a leader in the chip materials industry.