Affiliated Company
Company Information

Maruzen Chemical Trading Co., Ltd.

Home Office1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-8502　TEL：03-3551-1450　FAX：03-3551-1426
Osaka branch3-1-9 Awaji-machi, Chuo-ku, Osaka 541-0047　TEL：06-6221-4881　FAX：06-6221-0215
FoundedMarch 5, 1969
Capital¥200 million(100% capital investment by the company)
Business PurposeSale, purchase, import and export of petrochemical products, precision chemical products, packaging materials and various other products
History
Mar. 1969
Establishment as Maruka Kogyo primarily for insurance sales agency operations (capital: ¥2.5 million)
April 1976
Launch of petrochemical product sales and purchase operations
Nov. 1985
Name changed to Maruzen Chemical Trading Co., Ltd.
July 1987
Launch of coastal transport operations
Nov. 1992
Increase in capital to ¥200 million

Web Site

Chiba Butadiene Industry Co., Ltd.

Location1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-0042　TEL：03-3552-9373
FoundedAugust 23, 1969
Capital¥490 million (50% capital investment by the company)
Business PurposeProduction, sale and purchase of butadiene and byproducts
History
Aug. 1969
Established with 50:50 capital split with Ube Industries, Ltd. (capital: ¥500 million)
Jan. 1971
Completion of butadiene extraction unit, launch of business operations
Jan. 1994
Completion of second butadiene extraction unit

Goi Chemical Co., Ltd.

Location14 Goi Minami-Kaigan, Ichihara City, Chiba 290-0045　TEL：0436-22-6091　FAX：0436-22-2888
FoundedOctober 9, 1972
Capital¥50 million (50% capital investment by the company)
Business PurposeProduction and sale of organic chemical products
ProductsAlpha-Methyl styrene dimer(AMSD)
2,4 - di -tertiary-amyl-phenol(2,4 DTAP)
Para-tertiary-amyl-phenol(PTAP)
History
Oct. 1972
Establishment with 50:50 capital split by Maruzen Oil Co., Ltd. and Hitachi Chemical Co., Ltd. (capital: ¥20 million)
Nov. 1973
Launch of business operations
Sept. 1982
Transfer of alkylphenol sales by Maruzen Oil Co., Ltd. to the company
Dec. 1984
Transfer of stock by Maruzen Oil Co., Ltd. to the company increasing its holdings to 50%

Company information（PDF）

Keiyo Ethylene Co., Ltd.

Location1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-0042　TEL：03-3552-9373
FoundedSeptember 11, 1991
Capital¥6.0 billion (55% capital investment by the company)
Business PurposeProduction, processing, sale and purchase of ethylene, propylene and other basic petrochemical products
History
Sept. 1991
Established (capital: ¥3.0 billion)
Dec. 1994
Launch of business operations
Dec. 1995
Increase in capital to ¥6.0 billion through capital investment by Sumitomo Chemical Co., Ltd., and Mitsui Petrochemical Industries Ltd. (present Mitsui Chemicals, Inc.)
Mar. 2015
Transfer of equity (22.5%) by Mitsui Chemicals Inc. to Sumitomo Chemical Co.,Ltd.
July 2015
Launch of business operations by Sumitomo and us

Keiyo Monomer Co., Ltd.

Location11-6 Goi Minami-Kaigan, Ichihara City, Chiba 290-0045　TEL：0436-24-8535　FAX：0436-24-8529
FoundedJune 22, 1993
Capital¥2.4 billion (18.75% capital investment by the company)
Business PurposeProduction and sale of PVC monomer
History
June 1993
Establishment as a joint venture by the company and Asahi Glass Co., Ltd.(capital: ¥50 million)
Mar. 1995
Launch of business operations
July 1995
Increase in capital to ¥2.4 billion through capital investment by Kureha Chemical Industry Co., Ltd.

Keiyo Polyethylene Co., Ltd.

Home Office12-1, Nihonbashi 3chome,Chuo-ku,Tokyo 103-0027　TEL：03-3246-6991　FAX：03-3246-6993
Osaka Sales Office3-1-9 Awaji-machi, Chuo-ku, Osaka 541-0047　TEL：06-6205-0851　FAX：06-6205-0856
FoundedAugust 7, 1997
Capital¥480 million (50% capital investment by the company)
Business PurposeSale of high-density polyethylene
History
Aug. 1997
Established with 50:50 capital split by Maruzen Polymer Co., Ltd. and Chisso Petrochemical Corporation (capital: ¥480 million)
Oct. 1997
Launch of business operations

Web Site

Ube Maruzen Polyethylene Co., Ltd.

Location1-2-1 Shibaura, Minato-ku, Tokyo 105-6791　TEL：03-5419-6164
FoundedOctober 1, 2004
Capital¥490 million (50% capital investment by the company)
Business PurposeProduction and sale of low-density polyethylene
History
Oct. 2004
The low-density polyethylene operations of Ube Industries, Ltd., were separated and established as a joint venture by Ube Industries, Ltd. and the company

Web Site

CM Aroma Co., Ltd.

Location1-1-1 Shibaura, Minato-Ku, Tokyo 108-8528　TEL：03-3798-3142
FoundedApril 1, 2005
Capital¥100 million (35% capital investment by the company)
Business PurposeProduction and sale of mixed xylene
History
April 2005
Established as a joint venture by Cosmo Oil Co., Ltd. and the company
July 2005
Launch of business operations

Chiba Arkon Production, Limited

Location2 Goiminamikaigan, Ichihara-shi, Chiba
FoundationFebruary 2018
Capital stock2 billion yen (35% Investment ratio)
Business purposeManufacturing and selling of hydrogenized petroleum resign

Sunplac Corporation

Head Office1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-0042　TEL：03-3552-4375　FAX：03-3552-4372
Plant2381 Shichihongi, Kamisatomachi, Kodama-gun, Saitama 369-0306　TEL：0495-33-7725　FAX：0495-33-7726
FoundedNovember 1, 1979
Capital¥50 million (100% capital investment by the company)
Business Purpose1. Production and sale of inorganic blended polyolefins and plastic products
2. All operations incidental to the above
History
Nov. 1979
Established through total capital investment by Nissan Chemical Industries, Ltd. (capital: ¥50 million)
June 1986
Established as wholly-owned affiliate of Nissan Maruzen Polyethylene Co., Ltd. through transfer of management rights by Nissan Chemical Industries
Aug. 1994
Establishment of integrated structure for multi-film production and sales
April. 2005
Sunplac Corporation became wholly-owned affiliate of Maruzen Petrochemical Establishment of Sunplac (Thailand) Co., Ltd.

Web Site

MARUZEN　AMERICA，INC．

Location1800 West Loop South, Suite 1810, Houston, TX 77027 U.S.A.　TEL：+1-832-409-6860　FAX：+1-713-572-2285
FoundedJuly 8, 1986
Capital$200,000 (100% capital investment by the company)
Business Purpose1. Collection of chemical technology information in the U.S.
2. Market development for the company's export products and sales technology service agency operations