April, 1950

The Japanease Geon Co., Ltd. founded to manufacture and sell plastics with starting capital of 5 million yen. Head Office set up within Nippon Light Metal Co., Ltd. (7-3 Ginza Nishi, Chuo-ku, Tokyo).

January, 1951

Technical assistance contract for the manufacture of polyvinyl chloride resins (PVC) concluded with BF Goodrich Chemicals Co. of the U.S.A.

April, 1952

PVC production begins at Kanbara Plant (Shizuoka Prefecture).

September, 1953

Technological Research Laboratory opens.

November, 1956

PVC production begins at Takaoka Plant (Toyama Prefecture).

July, 1959

Production of Japan's first synthetic rubbers begins at Kawasaki Plant (Kanagawa Prefecture). Central Research Laboratory opens.


September, 1961

Listed on the Tokyo Stock Exchange. Listed on the Osaka and Nagoya Stock Exchanges in October.

June, 1965

Head Office moves to Marunouchi 2-6-1, Chiyoda-ku, Tokyo.

August, 1965

Butadiene and SBR production using the GPB Process (Zeon's proprietary technology for extracting butadiene) begins at Tokuyama Plant (Yamaguchi Prefecture).

November, 1965

BR production begins at Tokuyama Plant.

March, 1967

Kanbara Plant closed.

July, 1969

PVC production begins at Mizushima Plant (Okayama Prefecture).


September, 1970

All stock of The Japanease Geon held by BF Goodrich Chemical Co. of the U.S.A. transferred to Japanese interest.

November, 1971

English company name changed to Nippon Zeon co., Ltd.

November, 1971

GPI (Zeon's proprietary technology for extracting Isoprene) facility completed in Mizushima Plant and production of IR begin at the plant.

August, 1973

C5 hydrocarbon resin production begins at Mizushima Plant

February, 1978

Production of NBR begins at Tokuyama Plant


April, 1980

Synthetic aromatic chemicals production begins at Mizushima Plant.

July, 1982

Electronic materials business launched.

April, 1984

Production of Zetpol® (hydrogenated NBR) begins at Takaoka Plant.

November, 1985

Entire company awarded Deming Prize for TQC.

December, 1985

Production of Quintac® (thermoplastic elastomer SIS) begins at Mizushima Plant.

March, 1986

Production of polymerized toner begins at Kawasaki Plant.

August, 1986

Solution-polymerized SBR production begins at Tokuyama Plant.

March, 1989

Nitrile rubber operations of BP Chemical Ltd. in U.K. purchased.

September, 1989

RIM products business launched.

October, 1989

Specialty rubber business of BF Goodrich Chemicals Co. of the U.S.A. purchased.


February, 1990

Company becomes first enterprise in the world to receive approval to manufacture ventricular-assist devices.

October, 1990

A comprehensive medical equipment plant completed within the Takaoka Plant.

November, 1990

ZEONEX (COP, Cyclo Olefin Polymer) plant completed within the Mizushima Plant.

July, 1994

Environmental materials business launched in its entirety.

October, 1994

Takaoka and Tokuyama Plants acquire ISO 9002 certification. (Kawasaki and Mizushima Plants acquire it in 1995.)

October, 1994

Combined septic tank production facility completed at Mizushima Plant.

July, 1995

PVC business via transfer to Shin Dai-ichi Vinyl Corporation spun-off.

June, 1998

Construction of C5 hydrocarbon resin plant of Zeon Chemicals (Thailand) Co., Ltd. completed.

September, 1998

Sales of ZEONOR® (COP) , begin.

November, 1998

Takaoka Plant acquires ISO 14001 certification. (Tokuyama, Mizushima, and Kawasaki Plants acquire it in 1999.)

December, 1998

Production facility for ZEORORA® completed at Takaoka Plant.

December, 1998

The U.S. DSM Copolymer's NBR business purchased.

September, 1999

Specialty rubber business from the Goodyear Tire & Rubber Company of the U.S.A. purchased.


March, 2000

PVC production at Mizushima Plant discontinued. Company withdraws from vinyl chloride business.

July, 2000

Company logo changed and English company name changed to ZEON CORPORATION to mark the 50th anniversary.

December, 2001

COP processing facility completed in Takaoka Plant.

October, 2002

ZeonorFilm® (LCD Plastic film) launched.

August, 2003

RIMTEC Corporation founded

April, 2004

Construction of a polymerized color toner plant begins.
Construction of the facility for LCD diffusion plates made with COP completed.

August, 2004

Construction of a new CMB (Carbon Master Batch) factory completed in Guangzhou, China.

October, 2004

A new Low-k dielectric material for inter-layer insulation film was developed.

November, 2004

COP production capacity improved to 15,000 tons.

February, 2005

Construction of Precision Optics Laboratory and ZeonorFilm® Complex No.5 at Takaoka Plant completed.
Relocated Head Office to current location.

October, 2005

Constructs new manufacturing facility and launches sales of New Ether Solvent.

May, 2006

Completed R&D building No.10.

August, 2007

Won METI Minister's Prize of the second Monozukuri Nippon Grand Award for Plastic films.

September, 2008

New facility for Plastic films constructed in Himi city, Toyama Pref.

June, 2008

Completed the construction of Intergrated Product Center (IPC) at Mizushima Plant.

January, 2009

Zeon absorps Optes Inc,.


December, 2010

Zeon Chemicals Singapore Pte. Ltd. founded.

February, 2011


February, 2012

Zeon Manufacturing Vietnam Co., Ltd. founded.

October, 2013

New facility for Plastic films constructed in Tsuruga city, Fukui.

April, 2014

Completed the construction of facility for S-SBR at Zeon Chemicals Singapore.

February, 2015

New facility for optical films constructed in Himi city, Toyama Pref.

July, 2015

Zeon India Private Limited founded.

November, 2015

Completed the construction of facility for Carbon Nanotube at Tokuyama plant.

April, 2017

Joint Venture between Zeon and Sumitomo Chemical started operations.

October, 2017

Zeon Specialty Materials lnc. founded.

March, 2018

Discontinued of UK production.

June, 2018

Zeon Taiwan Co., Ltd. founded.

September, 2018

Zeon Chemicals Asia Co., Ltd. founded.

July, 2019

Signed the UN Global Compact.


April, 2020

70th anniversary