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History

As for detailed histories of Mitsubishi Chemical Corporation, Mitsubishi Tanabe Pharma Corporation, Mitsubishi Plastics, Inc., and Mitsubishi Rayon Co., Ltd., please refer to each website.

October 3, 2005 Mitsubishi Chemical Holdings Corporation was jointly established by Mitsubishi Chemical Corporation and Mitsubishi Pharma Corporation, by means of a stock-for-stock exchange effective October 1, 2005.
October 10, 2006 The head office relocated to 4-chome, Minato-ku, Tokyo.
October 1, 2007 Mitsubishi Plastics, Inc. became a wholly-owned subsidiary of Mitsubishi Chemical Holdings Corporation.

Mitsubishi Pharma Corporation and Tanabe Seiyaku Co., Ltd. merged and became a listed subsidiary of Mitsubishi Chemical Holdings Corporation as Mitsubishi Tanabe Pharma Corporation.
April 1, 2008 Functional products businesses of Mitsubishi Chemical Corporation, Mitsubishi Plastics, Inc., Mitsubishi Polyester Film Corporation, Mitsubishi Chemical Functional Products, Inc., and Mitsubishi Chemical MKV Company were amalgamated to become a consolidated new company, Mitsubishi Plastics, Inc.

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