Affiliated Company

Maruzen Chemical Trading Co., Ltd.
Web Site

1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-0042
Tel.03-3551-1450  fax.03-3551-1426
Founded March 5, 1969
Capital ¥200 million(100% capital investment by the company)
Business Purpose Sale, 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.
Mar. 1986
Launch of Chiba sales office operations
July 1987
Launch of coastal transport operations
Nov. 1992
Increase in capital to ¥200 million

Chiba Butadiene Industry Co., Ltd.

1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-0042
Tel.03-3552-9373
Founded August 23, 1969
Capital ¥490 million (50% capital investment by the company)
Business Purpose
  • Production, 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.
Company profile

14 Goi Minami-Kaigan, Ichihara City, Chiba 290-0045
Tel.0436-22-6091  fax.0436-22-2888
Founded October 9, 1972
Capital ¥50 million (50% capital investment by the company)
Business Purpose
  • Production and sale of organic chemical products
Products
  • Alpha-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%

Maruzen Techno-Service Co., Ltd.

3 Goi Minami-Kaigan, Ichihara City, Chiba 290-8503
Tel.0436-22-8455  fax.0436-22-8180
Founded March 1, 2001
Capital ¥50 million
Business Purpose
  • Design, construction, maintenance and management of equipment, pipe systems, civil engineering projects, landscaping, air conditioning, measurement instrumentation, electrical facilities, etc.
  • Sales of valves, pipes, pipe joints, steel material, packing, containers, etc.
  • Management and operation of chemical and petrochemical production unit
  • Transport and treatment of industrial waste
  • Nonlife insurance sales agency operations
History
Mar. 2001
Established through the separation of the Chiba sales office of Maruzen Chemical Trading Co., Ltd.
July 2001
Acquisition of general construction business license
Aug. 2001
Acquisition of general laborer dispatch operation license

Keiyo Ethylene Co., Ltd.

1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-0042
Tel.03-3552-9373
Founded September 11, 1991
Capital ¥6.0 billion (55% capital investment by the company)
Business Purpose
  • Production, 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.

11-6 Goi Minami-Kaigan, Ichihara City, Chiba 290-0045
Tel.0436-24-8535  fax.0436-24-8529
Founded June 22, 1993
Capital ¥2.4 billion (18.75% capital investment by the company)
Business Purpose
  • Production 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.
Web Site

[Home Office]
7F Nihonbashi 313 Building, 3-13-5 Nihonbashi, Chuo-ku, Tokyo 103-0027
Tel.03-3246-6991  fax.03-3246-6993
[Osaka Sales Office]
3-1-9 Awaji-machi, Chuo-ku, Osaka 541-0047
Tel.06-6205-0851  fax.06-6205-0856
Founded August 7, 1997
Capital ¥480 million (50% capital investment by the company)
Business Purpose
  • Sale 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 Kureha Chemical Industry Co., Ltd.

Ube Maruzen Polyethylene Co., Ltd.
Web Site

1-2-1 Shibaura, Minato-ku, Tokyo 105-6791
Tel.03-5418-6164   fax.03-5419-6249
Founded October 1, 2004
Capital ¥490 million (50% capital investment by the company)
Business Purpose
  • Production 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

CM Aroma Co., Ltd.

1-1-1 Shibaura, Minato-Ku, Tokyo 108-8528
Tel.03-3798-3142
Founded April 1, 2005
Capital ¥100 million (35% capital investment by the company)
Business Purpose
  • Production 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

Sunplac Corporation
Web Site

[Head Office]
1-1, Irifune 2-chome, Chuo-ku, Tokyo 104-0042
Tel.03-3552-4375  fax.03-3552-4372
[Plant]
2381 Shichihongi, Kamisatomachi, Kodama-gun, Saitama 369-0306
Tel.0495-33-7725  fax.0495-33-7726
Founded November 1, 1979
Capital ¥50 million (100% capital investment by the company)
Business Purpose
  • Production and sale of inorganic blended polyolefins and plastic products
  • 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.

MARUZEN AMERICA INC.

2000 West Loop South, Suite 1100 Houston, Texas 77027-3512
Tel.+1-713-966-5790  fax. +1-713-572-2285
Founded July 8, 1986
Capital $200,000 (100% capital investment by the company)
Business Purpose
  • Collection of chemical technology information in the U.S.
  • Market development for the company's export products and sales technology service agency operations
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