Corporate History

  • August 1939

    Jiro and Saburo Yanagisawa, founders of the Company, established Yanagisawa Organic Chemical Industry in current Shinden, Adachi-ku, Tokyo.

  • March 1946

    Acquired Towa Kagaku Industry Co., Ltd. and changed the company name to Nihon Kagaku Sangyo Co., Ltd.

  • April 1948

    Merged Yanagisawa Organic Chemical Industry into Nihon Kagaku Sangyo Co., Ltd.to unify manufacturing and sales.

  • June 1952

    Established a branch office in Osaka to develop sales channels in western Japan.

  • December 1956

    Established a sales office in Nagoya. (Promoted it to a branch office in October 1963.)

  • April 1961

    Constructed the Saitama Plant and laboratory in Soka, Saitama.

  • October 1961

    Listed the Company’s stock on the Second Section of the Tokyo Stock Exchange.

  • June 1967

    Constructed the Aoyagi Plant in Soka Industrial Park, Saitama, as a production base for the Building Materials Business.

  • July 1968

    Constructed the Company’s head office building in Shitaya Tito-ku, Tokyo.

  • December 1977

    Constructed the Fukushima Plant No.1 in Hironomachi, Futaba-gun, Fukushima, as a production base for the Chemicals Business.

  • March 1991

    Constructed the Otone Plant in Otonemachi, Kita Saitama-gun, Saitama (currently Kazo-shi), as a production base for the Chemicals Business.

  • August 1998

    Obtained ISO 9002 certification for all items, at all plants that produce chemicals.

  • April 1999

    Established NEXAS ELECHEMIC Co., Ltd., a subsidiary of the Company, in Thailand.

  • October 1999

    The Building Materials Division obtained ISO 9002 certification for its housing materials products.

  • May 2000

    The Saitama, Fukushima No.1, and Otone plants, the General R&D Laboratory, and the Electrolysis Section of the Building Materials Division obtained ISO 14001 certification.

  • June 2000

    Established SIAM NKS Co., Ltd., a wholly owned subsidiary of the Company, in Thailand.

  • November 2000

    The Building Materials Division obtained ISO 9001 certification.

  • November 2001

    The Aoyagi Plant obtained ISO 14001 certification.

  • December 2004

    The Chemicals Sales Division and the General R & D Laboratory obtained IS09001 certification.

  • December 2014

    Established the Hanoi Representative Office in Vietnam.

  • December 2016

    NEXAS ELECHEMIC Co., Ltd. ceased its operations due to business restructuring.

  • September 2018

    Relocated the Osaka branch office.

  • April 2019

    Acquired a factory site in the Yotsukura Core Industrial Park located in Iwaki, Fukushima.

  • July 2019

    Liquidation of Nexus Elechemic Co., Ltd. completed.

  • September 2019

    Constructed a new office building and a new laboratory building at the Saitama Plant.

  • April 2022

    Moved to the Standard Market following the revision of the market classifications of the Tokyo Stock Exchange.

  • September 2022

    Relocated the head office to Higashiueno Taito-ku, Tokyo.