Corporate Profile

ZEON KASEI is committed to contributing to society, with “Ecology” and “Amenity” as keywords, and intends to establish a strong presence by creating unique technologies, manufacturing highly original products, and accepting new challenges.

Foundation August 1, 1981
Capital 462.55 million yen
Sales 12.66 billion yen (for the fiscal year ended March 2023)
No. of employees 135 (as of April 1, 2024)
Shareholders Zeon Group (100%)

Head office

Shin-Marunouchi Center Building, 1-6-2, Marunouchi, Chiyoda-ku, Tokyo, 100-0005, Japan
Phone: +81-3-5208-5111 Fax:+81-3-5208-5290 (main)

Logistic Materials Division

Phone: +81-3-5208-5167 Fax: +81-3-5208-5296

Packaging Materials Division

Phone: +81-3-5208-5130 Fax: +81-3-5208-5196

High Performance Materials Division

Phone: +81-3-5208-5159 Fax: +81-3-5208-5291

Housing Materials Division

Phone: +81-3-5208-5134 Fax: +81-3-5208-5195

(Contact Point, Hokkaido)

Phone: +81-11-222-1150 Fax: +81-11-231-6686

PSC Business Development Division

Phone: +81-3-5208-5118 Fax: +81-3-5208-5292

Technical Division

Phone: +81-3-5208-5117 Fax: +81-3-5208-5292

Purchasing Division

Phone: +81-3-5208-5119 Fax: +81-3-5208-5292

Planning & Administration Division

Phone: +81-3-5208-5111 Fax: +81-3-5208-5290


Ibaraki PlantMAP

1175 Kamiizushima, Bando City, Ibaraki 306-0654, Japan

Phone: +81-297-34-2111

Fax: +81-297-34-2316

Ibaraki Plant

Yamaguchi PlantMAP

2288-7 Ooaza Tsukari Heisei, Hikari City, Yamaguchi 743-0105, Japan

Phone: +81-820-48-5000

Fax: +81-820-48-2233

Yamaguchi Plant

Zeon Kasei (Chanshu) Co., Ltd.

Xinhang Science and Technology Industrial Park, Building 9 Huangpujiang Road 208, Dongnanjingjikaifa District , Changshu City, Jiangsu Province, 215500, China

Phone: +86-512-5235-7000

Fax: +86-512-5235-7308

Zeon Kasei (Chanshu) Co., Ltd.

Zeon Kasei Mexico, S.A. de C.V.MAP

Avenida Santiago Sur 100, Los Jassos, San Luis Potosi, San Luis Potosi, C.P.78420, Mexico

Phone: +52-44-4478-5400


Research Laboratory (Manufactured Product Development Laboratory, R&D Center, Zeon Corporation)


1-2-1 Yako, Kawasaki-ku, Kawasaki City, Kanagawa 210-0863, Japan

Phone: +81-44-276-3741

Fax: +81-44-276-3321

Research Laboratory (Manufactured Product Development Laboratory, R&D Center, Zeon Corporation)
Banks Mizuho Corporate Bank

President: Hiroshi Fujisawa

Directors: Hiroyuki Tsunemori, Shinichi Akatani, Kozo Akaike, Mio Yarimizu, Haruhiko Takahashi

Auditor: Makoto Yokota

Corporate History

September 1975

Established the Processed Products Division, the predecessor of ZEON KASEI, at Zeon Corporation.

Zeon Kosan Co., Ltd. started its trading business.

October 1981

The Processed Product Division, Zeon Corporation, became independent to start business as Zeon Kasei Co., Ltd.

Head office: Tokyo
Branch offices: Osaka, Nagoya, Fukuoka, Hiroshima, Takaoka, Hokkaido

November 1988

The business of Zeon Kosan was transferred to the company.
Head office was moved to Hatchobori from Shimbashi.

November 1989

Provided powder slush compound technology to ATOCHEM in France.

August 1991

Established Yamaguchi Zeon Kasei Co., Ltd.

November 1991

Ceremony marking the 10th anniversary of the foundation.

October 1992

Provided powder slush compound technology to PLAST-O-MERIC in the U.S.A.

June 1994

Acquired all shares of Yamamu Kasei Co., Ltd.

July 1994

Transferred the business of the Civil Engineering Material business to Zeon Corporation. Along with this transfer, ZEON KASEI partially consolidated or liquidated its branch offices.

September 1994

Moved the head office to Shiba-Koen from Hatchobori.

September 1997

Completed construction of a new compound plant at Ibaraki Zeon Kasei Co., Ltd.

March 1999

The Trading Division became independent to begin business as Zeon Trading Co., Ltd.

July 2000

Zeon Trading Co., Ltd. merged into Tokyo Zairyo Co., Ltd.

January 2001

Asahi Kagaku Kogyo Co., Ltd. merged into Zeon Kasei Co., Ltd.

October 2001

Ceremony marking the 20th anniversary of the foundation.

October 2002

Iwai Plant merged into Ibaraki Zeon Kasei Co., Ltd.

July 2003

Established Zeon Logistical Materials Co., Ltd.

July 2004

Head office and Kawasaki Research Laboratory obtained ISO 14001 certification.

April 2005

Established the Ibaraki Plant, ZEON KASEI, in Ibaraki.

May 2007

Head office, Ibaraki Plant, and Zeon Corporation’s Manufactured Product Development Laboratory obtained ISO 9001 certification.

July 2009

Merged with Zeon Logistical Materials merged into Zeon Kasei Co., Ltd.

April 2011

The Vinyl Chloride Resin Compound business was transferred to RIKEN TECHNOS Corp.

April 2011

Established Zeon Kasei (Changshu) Co., Ltd.

December 2013

Zeon Kasei (Changshu) Co., Ltd. started operation of its second production line.

July 2015

Established Zeon Kasei Mexico S.A. De C.V.

April 2017

Ibaraki Zeon Kasei Co., Ltd. merged into Zeon Kasei Co., Ltd.

August 2018

Zeon Kasei (Changshu) Co., Ltd. and ZEON KASEI received PSC-related IATF 16949 certification.


Zeon Corporation

Zeon Kasei (Changshu) Co., Ltd.

Zeon Kasei Mexico S.A. de C.V.

Tokyo Zairyo Co., Ltd.

Zeon F&B Co., Ltd.

Zeon North Co., Ltd.

Zeon Medical Inc.


The corporate name “Zeon” is a compound of two Greek words: “Geo,” which refers to the “Earth,” and “eon,” which refers to “eternity.” It represents “Eternal Prosperity with Materials Supplied by the Earth.” As shown in the company name, which means new value creation through compounding, ZEON KASEI hopes to meet needs of the times, livelihood, and people through cooperation and coexistence as a member of the Zeon Group headed by Zeon Corporation.