History

Oct. 1959 The petrochemical sector of Maruzen Oil (renamed to Cosmo Energy Holdings) Co.,Ltd. is separated as an independent unit and established with a capital investment of ¥2.5 billion(100% share)by Maruzen Oil Co.,Ltd.
Feb. 1964 Capital investments are received from Ube Industries Ltd. Chisso (renamed to JCN Corporation), Denki Kagaku Kogyo K.K. (renamed to Denka Company Limited ), Nissan Chemical Industries,Ltd. and Nippon Soda Co.,Ltd.
Jun. 1964 Commencing commercial operation of No.1 Ethylene production Unit
Apr. 1966 Commencing commercial operation of No.2 Ethylene production Unit and the No.1 Aromatic Extraction Unit
Apr. 1969 Commencing commercial operation of No.3 Ethylene production Unit and No.2 Aromatic Extraction Unit
Aug. 1969 Establishment of Chiba Butadiene Industry Co., Ltd. as a joint venture for the production and the sale of butadiene
Apr. 1981 Establishment of Nissan Maruzen Polyethylene Co.,Ltd. as a joint venture for the production and the sale of high-density polyethylene(Jan. 1991:renamed to Maruzen Polymer Co.,Ltd.)
Jul. 1982 Commencing commercial operation of Petroleum Resin Production Unit
Sep. 1982 The petrochemical business, including Alcohol Ketone Production Unit, inherited from Maruzen Oil (renamed to Cosmo Energy Holdings) Co., Ltd.
Aug. 1983 Commencing commercial operation of Water-based solvent production Unit
Dec. 1984 Acquisition of Goi Chemical Co.,Ltd. stock from Maruzen Oil (renamed to Cosmo Energy Holdings) Co.,Ltd.
Oct. 1985 Establishment of Nisso Maruzen Chemical Co.,Ltd. as a joint venture for the production and the sale of ethylene oxide, ethylene glycol and other products
Mar. 1986 Commencing commercial operation of Polyparavinylphenol Production Unit
Jul. 1986 New York representative office is reorganized into Maruzen America Inc. established through 100% capital investment
Sep. 1987 Commencing commercial operation of Multi Hydrogenation Unit and High-purity dicyclopentadiene Production Unit
Apr. 1989 Commencing commercial operation of Benzene Production Unit
Dec. 1990 Establish the corporate brand "Chemiway"
Apr. 1991 Commencing commercial operation of No.2 Multi Hydrogenation Unit
Sep. 1991 Establishment of Keiyo Ethylene Co.,Ltd. for the production and the sale of ethylene, propylene and other products
Jun. 1993 Establishment of Keiyo Monomer Co.,Ltd. as a joint venture for the production and the sale of Vinyl chloride monomer
Dec. 1994 Commencing commercial operation of No.4 Ethylene Production Unit (Keiyo Ethylene Co. Ltd.)
Dec. 1997 ISO (International Organization for Standardization) 9002 certified
Aug. 1998 Commencing commercial operation of Vinyl Ether Production Unit
Aug. 1999 Commencing commercial operation of Hydrofluoroethane Production Unit
Nov. 1999 ISO14001 certified
Dec. 1999 Acquisition of Nisso Petrochemical Industries Co.,Ltd. shares from Nippon Soda Co.,Ltd. and Teijin Limited (renamed to Maruzen Chemical Co.,Ltd. in Oct. 2000)
Oct. 2004 Establishment of Ube Maruzen Polyethylene Co.,Ltd. as a joint venture for the production of Low-density polyethylene
Apr. 2005 Merger of Maruzen Polymer Co.,Ltd. and Maruzen Chemical Co.,Ltd. Establishment of CM Aroma Co.,Ltd. as a joint venture for the production and the sale of Mixed xylene
Dec. 2005 Setting up CSR committee
Jun. 2008 Revamp No.3 Ethylene Production Unit to enhance its international competitiveness
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