Jiro and Saburo Yanagisawa established Yanagisawa Organic Chemical Industry in Tokyo
Yanagisawa purchased Towa Kagaku Industry Co., Ltd. (established in 1924) as a sales subsidiary and changed the company name to Nihon Kagaku Sangyo Co., Ltd.
Yanagisawa Organic Chemical Industry merged into Nihon Kagaku Sangyo Co., Ltd.
Began manufacturing chemicals for printing ink, drying agents for paints and catalysts for organic synthesis
Established Osaka Branch, the Company's first expansion into western Japan
Established Nagoya Sales Office
Built factory in Soka, Saitama (Saitama Piant)
Shares listed on the Tokyo Stock Exchange, Second Section
Increased capital to ¥300 million; began molding and surface treatment of aluminum spandrel at Saitama Plant
Nagoya, Sales Office became Nagoya Branch; sales offices increased in the Chukyo and Tokai areas
Built Aoyagi Plant for aluminum molding in Soka, Saitama
Increased capital to ¥450 million; construction of new head office and factories
Rebuilt Aoyagi Plant for production of shutters
Increased capital to ¥700 million; rise in production of shutters
Built factory in Hironomachi, Fukushima (Fukushima Plant)
Increased capital to ¥940 million
Increased capital to ¥1,034 million
Built factory in Otonemachi, Saitama (Otone Plant)
Chemicals Production Division acquired ISO 9002 covering all its products
Thai subsidiary NEXAS ELECHEMIC Co., Ltd. established
Capital investment in Philippine company Pacific Rare Metal Industries, Inc.
Building Materials Division acquired ISO 9002 certification for its housing materials
Saitama, Otone and Fukushima plants acquired ISO 14001 certification
Thai subsidiary SIAM NKS Co., Ltd. established
Building Materials Division acquired ISO 9001 certification
Aoyagi plant acquired ISO 14000 certification
Capital investment in Pacific Rare Speciaity Metals and Chemicals, Inc., an affiliated company in the Philippines
Obtained IS09001 certification for Chemicals BusinessDivision's General R & D Laboratory
Built factory in Narahamachi, Futabagun, Fukushima(Fukushima Plant No.2)
Hanoi representative office was established in Vietnam.
20-5 Shitaya 2-chome,Tito-ku,Tokyo,Japan