| Aug |
1934 |
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The predecessor of Mitsubishi Chemical Industries Limited was founded. |
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| Oct |
1935 |
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Kurosaki Plant started its operation. |
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| Jun |
1950 |
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Mitsubishi Chemical Industries Limited (the predecessor of Mitsubishi Kasei Corporation) was listed on the Tokyo Stock Exchange. |
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| Aug |
1950 |
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Osaka Branch Office was established. |
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| Jul |
1953 |
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Mitsubishi Chemical Industries Limited (the predecessor of Mitsubishi Kasei Corporation) merged with Toho Kagaku Kogyo (Yokkaichi Plant), and the Plant started its operation as Yokkaichi Plant (present Yokkaichi Plant) of Mitsubishi Chemical Industries Limited. |
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| Apr |
1956 |
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Mitsubishi Group and Shell Group jointly established Mitsubishi Petrochemical Co., Ltd. |
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Mitsubishi Chemical Industries Limited (the predecessor of Mitsubishi Kasei Corporation) established Tokyo Branch Office (- Sep 2000), Nagoya Branch Office (present Chubu Branch Office), and Kyushu Branch Office. |
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| May |
1959 |
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Mitsubishi Petrochemical Co., Ltd. started its operation of Yokkaichi Division (present Yokkaichi Plant). |
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| Feb |
1961 |
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Duesseldorf Office (present Mitsubishi Chemical Europe GmbH) was established. |
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| Apr |
1961 |
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New York Office (present Mitsubishi Chemical America, Inc.) was established. |
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| May |
1963 |
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Naoetsu Plant started its operation. |
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| Jul |
1964 |
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Mizushima Plant started its operation. |
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| Apr |
1968 |
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Tsukuba Research Center (present MCC-Group Science & Technology Office, Tsukuba Center) was established. |
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| Nov |
1969 |
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Sakaide Plant started its operation. |
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| Jan |
1971 |
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Kashima Division (present Kashima Plant, Tobu Zone) started its operation. |
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| Apr |
1971 |
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Hong Kong Office (present Mitsubishi Chemical Hong Kong Ltd.) was established. |
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| Apr |
1975 |
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Mitsubishi Kasei Do Brasil Limitada (- 2003) was established. |
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| Feb |
1976 |
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Research Center (present MCC-Group Science & Technology Office, Yokohama Center) was established. |
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| May |
1978 |
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Kashima Plant (present Kashima Plant, Hasaki Zone) started its operation. |
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| May |
1986 |
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Odawara Plant was established. |
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| Dec |
1986 |
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Chigasaki Plant (- Dec 1997) was established. |
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| Jun |
1988 |
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Mitsubishi Chemical Industries Limited changed the corporate name to Mitsubishi Kasei Corporation. |
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| Oct |
1990 |
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Mitsubishi Kasei Corporation merged with Matsuyama Kasei Ltd. (Matsuyama Plant), and the Plant started its operation as Matsuyama Plant of Mitsubishi Kasei Corporation. |
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| Apr |
1991 |
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Hiroshima Branch Office (- Oct 1999), and Sapporo Branch Office (present Hokkaido Branch Office) were established. |
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| Oct |
1991 |
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Mitsubishi Kasei Corporation merged with the Kasei Naoetsu Industries Limited (Naoetsu Plant) and the Plant started its operation as Naoetsu Plant of Mitsubishi Kasei Corporation. |
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| Apr |
1992 |
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Mitsubishi Kasei Singapore Pte Ltd (present Mitsubishi Chemical Singapore Pte Ltd) was established. |
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| Oct |
1992 |
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Mitsubishi Kasei Corporation merged with Mitsubishi Kasei Polytec Company (Tsukuba Plant) and JTC, and the Plant started its operation as Tsukuba Plant of Mitsubishi Kasei Corporation. |
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| Jan |
1993 |
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Taiwan Branch Office (- Jun 1998) was established. |
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| Apr |
1993 |
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Sendai Branch Office (- Oct 1999) was established. |
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| Jul |
1993 |
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Beijing Branch Office (present Beijing Office of Mitsubishi Chemical Corporation) was established. |
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| Mar |
1994 |
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Mitsubishi Kasei Thailand Co., Ltd. (present Mitsubishi Chemical (Thailand) Co., Ltd.) was established. |
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| Oct |
1994 |
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 |
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Mitsubishi Kasei Corporation and Mitsubishi Petrochemical Co., Ltd. merged and started the operation as Mitsubishi Chemical Corporation. |
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| Mar |
1995 |
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Jakarta Office (- Apr 2000) was established. |
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| Oct |
1999 |
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Mitsubishi Chemical Corporation merged with Tokyo Tanabe Co., Ltd. and established a subsidiary, Mitsubishi-Tokyo Pharmaceuticals, Inc., to take over combined pharmaceutical operations. |
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| Oct |
2001 |
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Mitsubishi-Tokyo Pharmaceuticals, Inc. and Welfide Corporation merged and started the operation as a subsidiary of Mitsubishi Chemical Corporation, Mitsubishi Pharma Corporation. |
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| Jul |
2003 |
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Mitsubishi Chemical Corporation established an independent company, Mitsubishi Chemical Group Science and Technology Research Center, Inc. as a corporate central research. |
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| Oct |
2003 |
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Mitsubishi Chemical Corporation relocated the head office to Minato-ku, Tokyo. |
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| Oct |
2005 |
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Mitsubishi Chemical Corporation and Mitsubishi Pharma Corporation jointly established a holding company, Mitsubishi Chemical Holdings Corporation, by means of a stock-for-stock exchange. |
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| Oct |
2006 |
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MitsubishiChemical Corporation relocated the head office to Shiba 4-chome, Minato-ku, Tokyo. |
Specialty Chemicals 
14-1 Shiba 4-chome, Minato-ku
