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Contribution We contribute to society by improving the quality of our work through our sincere efforts and creativity.


Development We strengthen our corporate structure and strive to achieve the sustainable development of the company.


Satisfaction We aim to be a satisfying company to work for.


Contribute to societythrough our business

Since its establishment 75 years ago, Sanko Co., Ltd., has been concentrating the collective efforts of all its employees under a management philosophy of “contributing to society through our businesses.” As a distributor and a manufacturer of chemicals, we have always aimed to build a corporate structure that responds quickly to the needs of society.
We have recently introduced a business division system more effectively to respond to the accelerating changes in the global economy. This new system integrates research, manufacturing and sales in order to further strengthen our initiatives aimed at developing new markets, improving the functionality of our products, and reducing costs. We are also committed to improving our corporate value and fulfilling our social responsibility by making company-wide improvements in quality control.
We look forward to your continued guidance and encouragement.

President and Chief Executive OfficerTAKAKI Yoshiyuki


Board member

President and Chief
Executive Officer
TAKAKI Yoshiyuki
Director, Senior Managing
Executive Officer
TSUNOMACHI Hiroki General Manager, Arao Factory
Director, Senior Managing
Executive Officer
TAKAHASHI Toru General Manager, Sales Division
Director, Senior Executive Officer KISHIMOTO Daishiro General Manager, Research and Development
Director, Senior Executive Officer YAMAGUCHI Kazuhito General Manager, Operations Division
External Director OGAWA Daisuke Advisor, Daicel Co., Ltd.
External Director TANI Masaaki Special Advisor, The Bank of Fukuoka, Ltd.
Auditor IBI Yoshimi
Senior Executive Officer NASU Takahiro President and Representative Director, SANKO MEDIC Co., Ltd.
Executive Officer SUMITOMO Hiroshi General Manager, Laboratory
Executive Officer OSHIMA Shuji General Manager, Chemical Division
Executive Officer ADACHI Yoji General Manager, Functional Polymer Materials Division
Executive Officer TAKASHIMA Masahiro General Manager, Kyushu Division
General Manager, Kitakyushu Branch Office
General Manager, Kyushu Branch Office
Executive Officer MORI Takaaki General Manager, Shiga Factory
Executive Officer ISHIBASHI Takeshi Deputy General Manager,
Arao Factory



Company name
SANKO Co., Ltd.
President and Chief Executive Officer
TAKAKI Yoshiyuki
June 1946
386,400,000 JPY
Quatro Muromachi Building 3rd Floor, 4-1-6 Nihonbashi-Muromachi, Chuo-ku, Tokyo, 103-0022,Japan
Head Office
8-16 Torimachi, Kurume City, Fukuoka,830-0018 Japan
Number of employees
TEL:+81-3-5204-0571 FAX:+81-3-5204-0470
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Business Areas

Manufacturing Division
Manufacturing of phenol derivatives, cyclic phosphorus compounds, and other compounds

Distributing Division
Chemical Products Division: Contract manufacturing of organic compounds, purchasing and sales of industrial chemical products
Sole agent for Proviron. Agent for Lianyungang Taile Chemical Industry Co., Ltd.
Synthetic Polymer Division: Purchasing and sales of synthetic polymer raw materials and products