Tokuyama Corporation was originally established in 1918 as Nihon Soda Kogyo Co., Ltd. The company's founder, Katsujiro Iwai, aimed to set up production of soda ash in Japan. During a history spanning over 100 years, Tokuyama confronted a changing environment while contributing to the development and growth of Japan's economy. The company is currently engaged in a wide array of business fields.
Establishment and specialization in soda productionSoga ash, Caustic Soda (Solvey process), Calcium Chloride, Cement (wet process)
Established "Nihon Soda Kogyo Co., Ltd." to produce soda ash in Tokuyama, Yamaguchi Prefecture (currently Shunan City)
The Company name is changed to "Tokuyama Soda Co., Ltd."
[Commenced cement business]
Commenced production of cement by employing a wet process that makes use of by-products from soda ash operations
Commenced production of calcium chloride
- The Factory as it was at the time of establishment
Expansion of the inorganic chemicals businessCaustic soda (Electrolytic process)
[Commenced electrolytic chlor-alkali business]
Commenced electrolytic chlor-alkali productions
Completed construction of Nanyo plant in Nanyo, Yamaguchi Prefecture (currently Shunan City) with the aim of expanding cement business
- 1960s Cement kiln
Entry into petrochemicals businessPolypropylene, Vinyl chloride, Cement
[Commenced petrochemicals business]
Commenced production of propylene oxide by employing chloride that makes use of by-products from caustic soda operations
[Commenced polyvinyl chloride business]
Commenced polyvinyl chloride business with the establishment of a manufacturing subsidiary
[Commenced ion exchange membrane business]
Completed construction of Higashi plant in Tokuyama, Yamaguchi Prefecture (currently Shunan City) with the aim of expanding the petrochemical business
Entry into specialty and processing businessFine chemical, Polycrystalline silicon, Aluminum nitride, Dental materials
[Commenced polypropylene film business]
Commenced production of Biaxially-oriented polypropylene film
[Commenced dental materials and equipment business]
[Commenced fine chemicals business]
Entered the fine chemicals market with the sale of plastic lens materials
[Commenced IC chemicals business]
Entered the electronic materials market with the sale of High-purity chemicals for electronics manufacturing
[Commenced clinical analyze and laboratory information systems business]
Switched over from the caustic soda manufacturing method to the ion exchange membrane method
[Commence electronic materials business]
Commence production of High-purity polycrystalline silicon
[Commenced Aluminum nitride business]
Completed construction of Kashima Factory in Hasaki, Ibaraki Prefecture (currently Kamisu city) with the aim of expanding the fine chemicals business
[Commenced gas sensors business]
Entered the sensor business with equity participation in Figaro Engineering Inc., a manufacturer of semiconductor type gas sensors
Established Tokuyama America Inc. as a US-based subsidiary
Completed construction of the Tsukuba Research Laboratory in Tsukuba, Ibaraki Prefecture
Established Tokuyama Europe GmbH. as a German-based subsidiary
- Kashima Factory
Strengthening and restructuring of businessRecycling and environment business, Group operations, Selection and concentration of business
The company name is changed to "Tokuyama Corporation"
Established Hantok Chemicals Co., Ltd., in South Korea as a joint venture to produce developing fluids for semiconductors
Established Tokuyama Asia Pacific Pte.Ltd. as a Singapore-based subsidiary and Tokuyama Electronic Chemicals Pte. Ltd. in Singapore as a refinery and distributor of high-purity chemicals for electronics manufacturing
Established Taiwan Tokuyama Corporation in Taiwan as a refinery and distributor of high-purity chemicals for electronics manufacturing
[Commenced the recycling & environment business]
Established Shanghai Tokuyama Plastics Co., Ltd. in Shanghai, China as a manufacturing and sales company of microporous film
- Shanghai Tokuyama Plastics Co., Ltd.
Aiming toward rasing corporate value
Established Tokuyama Trading (Shanghai) Co., Ltd., a sales company, in Shanghai, China and Tokuyama Chemicals (Zhejiang) Co., Ltd. in Zhejiang, China as a manufacturing and sales company of fumed silica
Established Tokuyama Korea Co., Ltd., a sales company, in Seoul, Korea
Established Tokuyama Malaysia Sdn. Bhd. in Malaysia as a manufacturing and sales company of polycrystalline silicon
Established Tianjin Tokuyama Plastics Co., Ltd. in Tianjin, China as a manufacturing and sales company of microporous film
Established Tokuyama (Shanghai) Co., Ltd, in China, as a management company to provide services for other group companies in China
Established Tokuyama Nouvelle Calédonie S.A., in New Caledonia, as a manufacturing and sales company of cement
Commenced production and sales of polycrystalline silicon at Tokuyama Malaysia Sdn. Bhd.
Commenced operations of cement clinker export loading equipment
- Tokuyama Chemicals (Zhejiang) Co., Ltd.
- Tokuyama Nouvelle Calédonie S.A.
Unveiled a new Medium-Term Management Plan "Cornerstone of the Group's Revitalization" Announced details of the overarching "Tokuyama Vision" to undertake a new foundation
Transferred all of the shares of Tokuyama Malaysia Sdn. Bhd. to OCI Company Ltd. in Korea
Acquired all of the shares of Tokuyama Central & Soda Inc., changed the company's name to Tokuyama Soda Trading Co., Ltd.
Established Formosa Tokuyama Advanced Chemicals Co.,Ltd. in Taiwan as a joint venture to produce the high-purity chemicals for electronics manufacturing
Aiming toward transform business portfolio to electronics, life science and environment business
A&T Corporation became a wholly owned subsidiary
Unveiled a Medium-Term Management Plan 2025. Announced a "Tokuyama's New Vision" with a redefined mission
Completed construction of Center for Commercialization of Advanced Technology in Yanai, Yamaguchi Prefecture with the aim of finding practical application for the advanced materials
Established Tokuyama Taiwan Marketing & Research Center Co., Ltd. in Taiwan
Amalgamated two local subsidiaries in Singapore, commenced the business as Tokuyama Singapore Pte. Ltd.
Established STAC Co., Ltd. in Korea, as a joint venture to produce the high-purity chemicals for electronics manufacturing
Restructured two subsidiaries in Taiwan, Tokuyama Taiwan Marketing & Research Center is changed to the name as Tokuyama Taiwan Corporation
Absorbed and merged its wholly subsidiary, Tokuyama Information Service Corporation