Welfide Corporation. In 1981, Mitsubishi Chemical Industries, Ltd. established a business alliance with Tokyo Tanabe Pharmaceuticals Co. In 1984, Mitsubishi Chemical Industries, Ltd. changed its name to Mitsubishi Chemical Corporation following the merger with Mitsubishi Petrochemical Co., Ltd. In 1999, Mitsubishi Chemical Corporation and Tokyo Tanabe Pharmaceuticals Co. merged formally and formed Mitsubishi-Tokyo Pharmaceuticals, Inc., to take over the combined pharmaceutical operations of the two companies. In 2001, Mitsubishi-Tokyo Pharmaceuticals and Welfide Corporation merged to establish Mitsubishi Pharma Corporation, and Mitsubishi Tanabe Pharma. In October 2005, Mitsubishi Pharma Corporation joined again with Mitsubishi Chemical Corporation to create Mitsubishi Chemical Holdings Corporation. In July, 2017, Mitsubishi Tanabe Pharma acquired Neuroderm for $1.1 billion. On 27 February 2020, Mitsubishi Tanabe Pharma was delisted from the Tokyo Stock Exchange, and is now described as a member of the Mitsubishi Chemical Holdings Group References External links Mitsubishi Tanabe Pharma Pharmaceutical companies of Japan Companies based in Osaka Prefecture Japanese companies established in 2007 Pharmaceutical companies established in 2007 Companies formerly listed on the Tokyo Stock Exchange Life sciences industry Mitsubishi companies Midori-kai Mitsubishi Chemical Holdings