Chuo Kaseihin Group offers services ranging from production to distribution
of chemical products through affiliated manufacturers specializing in unique materials
and that have relevant production processing technologies.



Company Profile

Trade name
Chuo Kaseihin Co., Inc.
Date of establishment
April 25, 1956
Capital stock
100 million yen
Kosuke Mizushima, President & CEO
Head Office
Nittochi Ginza Bldg. 4F, 7-14-13 Ginza, Chuo-ku, Tokyo

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Performance Chemicals Division
TEL: +81-3-5148-6461 FAX: +81-3-5148-6459
Plastics Division
TEL: +81-3-5148-6462 FAX: +81-3-5148-6463
Management Dept.
TEL: +81-3-5148-6455 FAX: +81-3-5148-6456
Osaka branch
LUCID SQUARE SEMBA 4F, 1-9-26 Kyutaro-machi, Chuo-ku, Osaka-shi, Osaka
TEL: +81-6-4963-3126 FAX: +81-6-6262-3130

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Nagoya office
Estate Nagoya Bldg. 2F, 1-11-5 Meiekiminami, Nakamura-ku, Nagoya-shi, Aichi
TEL: +81-52-571-3182 FAX: +81-52-571-3184

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Aizu factory
111 Aza-Nagayachi, Higashinagahara, Kawahigashi-machi, Aizuwakamatsu-shi, Fukushima
TEL: +81-242-75-3188 FAX: +81-242-75-3901

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Ageo factory
4-148 Nakabun, Ageo-shi, Saitama
TEL: +81-48-725-5911 FAX: +81-48-725-2550

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Shiga factory
1138 Kamihaneda-cho, Higashi-Omi-shi, Shiga
TEL: +81-748-22-5638 FAX: +81-748-22-5650

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Mizuho Bank,Kiraboshi Bank,MUFG Bank,Chiba Bank,Shoko Chukin Bank
Business Description
  • Distribution of petrochemicals and coal chemicals
  • Production and distribution of medicines, industrial chemicals (including agrochemical intermediates), pharmaceuticals, ag-related medicines, oils, oil and fat products, and other chemical products
  • Molding, processing, assembling, and distribution of synthetic resin products
  • Designing, molding, processing, assembling, and distribution of house building and construction materials
  • Production and distribution of food packaging


April 1956
Chuo Kaseihin Co., Inc established
August 1963
Osaka office established
July 1968
Ageo factory established in Ageo, Saitama
Purification, distillation and processing of chemicals commenced
April 1970
Osaka office upgraded to a branch office
September 1970
Shiga factory constructed in Higashiomi-shi in Shiga (under phase 1 of the construction plan)
March 1972
New organic synthesis plant added to the Ageo factory
February 1975
Phase 4 construction completed at the Ageo factory (boilers, antipollution facility, special plasticizer, etc.)
November 1975
Yokaichi Kasei Co., Ltd founded
June 1978
Drug manufacturer's license obtained. Related facilities constructed
October 1978
Plant for intermediate organic synthesis experiments constructed
March 1979
Extension of Shiga factory building completed
Processing of flexible synthetic resins (NHK Super Sheet) commenced
April 1979
Facilities to manufacture pharmaceutical products added
August 1980
C.S. Kaseihin K.K. established
October 1980
Central laboratory established at the Ageo factory
August 1981
Shiga factory operations transferred to Yokaichi Kasei Co., Ltd.
March 1982
Chuo Kaseihin Co., Inc. Ageo factory spun off and made independent to become CK Fine Chemicals Inc.
April 1985
Compound business test plant of Yokaichi Kasei Co., Ltd. established
April 1986
Chuo Kaseihin Co., Inc. Nagoya office established
September 1986
Chuo Composite Co., Ltd. established
April 1990
CK Fine Chemicals Inc. and C.S. Kaseihin K.K. merged to establish Chuo Chemical Inc.
April 1996
Yokaichi Kasei Co., Ltd. and Chuo Composite Co., Ltd. merged to establish Chuo Platec Co., Inc.
April 1997
CK Butsuryu Co., Inc. established
November 2001
Liaison office established in Shanghai, China
May 2002
Shanghai liaison office established as CK International Trading Co., Ltd.
January 2008
Chuo Platech Co., Inc. and Osaka Polymer Co., Inc. merged to establish Chuo Polymer Co., Inc.
April 2010
Chuo Chemical Co., Inc., Chuo Polymer Co., Inc. and CK. Butsuryu Co., Inc. merged into Chuo Kaseihin Co., Inc.

Group Companies

Domestic affiliate

Okabe Manufacturing Co., Ltd.
2043-46 Ota, Sakura-shi, Chiba 285-0808
  • TEL: +81-43-485-9071
  • FAX: +81-43-485-9070

Overseas subsidiaries

Shanghai CK International Trade Co., Ltd
Room 612, Shanghai Astronautics South Building, No. 222, Caoxi Road, Shanghai, China
Postal code: 200235
  • TEL: +86-21-6119-9292, 6119-9293, 6119-9399
  • FAX: +86-21-6119-9300
CK Advanced Composite Material (Danyang) Co., Ltd.
Building 21, No. 68 Tonggang West Road, Danyang Economic Development Zone, Jiangsu Province, China
Postal code: 212300
  • TEL: +86-511-8693-0286
  • FAX: +86-511-8693-0181