Company Profile and History | Tanaka Chemical Corporation

Business Information

Business Information

Corporate Data(as of Oct. 28, 2025)

Company name	Tanaka Chemical Corporation
Established	December 2, 1957
Capital	9.15 billion yen
Representative Director, Executive President	Tetsushi Kondo
Number of employees	344 (as of Sep. 30, 2025)
Scope of business	1. Manufacture and sale of positive electrode materials for rechargeable batteries 2. Manufacture and sale of inorganic chemical products
Stock exchange listing	Tokyo Securities Exchange(Standard Market)
Web	https://www.tanaka-chem.co.jp
Head Office・Fukui Plant	45-5-10, Shirakata-Cho,Fukui-Shi,Fukui 910-3131 Japan Tel +81-776-85-1801 / Fax +81-776-85-1803
Office	Tokyo Office Pacific Century Place 13F, 1-11-1 Marunouchi, Chiyoda-Ku, Tokyo 100-6213 Japan Google Map
Directors	Representative Director, Executive President Tetsushi Kondo Director (Outside Director) Kazuo Kuno Director Takanari Yamaguchi Director (Outside Director) Keiko Fukahori Director, Audit & Supervisory Committee (full-time) Toshiharu Yamabayashi Director, Audit & Supervisory Committee (Outside Director) Takeshi Inoue Director, Audit & Supervisory Committee (Outside Director) Hirozumi Fujii
Executive Officers	Executive President Tetsushi Kondo Managing Executive Officer Ryota Yamazaki (Internal Auditing, Responsible for General Affairs & Human Resources, Purchasing & Logistics, Information Disclosure) Executive Officer Manabu Tanaka (Responsible for Quality Assurance, Environment & Safety, Investor Relations) Executive Officer Kenji Nakane (Responsible for Research & Development, Process Engineering, Quality Control) Executive Officer Yoshiaki Kobayashi (Corporate Planning) Executive Officer Mitsuru Takamatsu (Responsible for Production, Production Management, Engineering & Maintenance) Executive Officer Satoru Nippa (Responsible for Sales & Marketing, Raw Materials Procurement)

History

1957	Established Tanaka Chemical Corporation in Ikuno,Osaka with a capital of 1 million yen. Commenced production of manganese carbonate (MnCO3) for ferrite at the Mukogawa Plant in Amagasaki, Hyogo.
1959	Established the Ashiya Plant in Ashiya, Hyogo.
1973	Commenced sale of nickel hydroxide.
1986	Commenced production of spherical nickel hydroxide for Ni-Cd batteries.
1988	Established the Fukui Plant. Closed the Ashiya Plant.
1991	Commenced production of spherical nickel hydroxide for Ni-MH batteries. Relocated the head office to Fukui.
1995	Opened the Osaka Office. Commenced production of cobalt oxide for lithium-ion batteries.
1997	Commenced production of high-capacity type nickel hydroxide（cobalt coated products）
1999	Acquired ISO14001 certification. Opened the Tokyo Office.
2000	Stock listed on JASDAQ Securities Exchange.
2002	Acquired ISO9001 certification.
2003	Commenced production of Ni/Mn/Co compound (ternary positive electrode material).
2007	Closed the Mukogawa Plant.
2009	Obtained a patent concerning ternary positive electrode material in U.S.A.
2011	Acquired Environmental Rating from the Development Bank of Japan.
2012	Fukui Plant awarded the Chairman’s Award from Japan Greenery Research and Development Center. Obtained a patent concerning ternary positive electrode material in Japan.
2016	Became subsidiary of Sumitomo Chemical Co.,Ltd. through third party allocation of shares.
2022	Transition to Standard Market,in accordance with restructuring of the Tokyo Stock Exchange.