as of October 1, 2025
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Board of Directors
Member of the Board, Corporate Auditor (June 24, 2025)
| Chairman of the Board | TANNOWA Tsutomu |
|---|---|
| Representative Director, Member of the Board, President & CEO | HASHIMOTO Osamu |
Representative Director, Member of the Board, Senior Managing Executive Officer | HIRAHARA Akio |
| Member of the Board, Senior Managing Executive Officer | ANDOU Yoshinori |
Member of the Board, Managing Executive Officer | ICHIMURA Satoshi |
| Member of the Board | MABUCHI Akira |
| Member of the Board | MIMURA Takayoshi |
| Member of the Board | KIHARA Tami |
| Audit & Supervisory Board Member | NISHIO Hiroshi |
| Audit & Supervisory Board Member | HOSOMI Yasuhiro |
| Audit & Supervisory Board Member | GOTO Yasuko |
| Audit & Supervisory Board Member | ONO Junshi |
| Audit & Supervisory Board Member | KIKUCHI Shin |
* New Member of the Board and Audit & Supervisory Board Member are scheduled to be officially appointed following a resolution at the Ordinary Meeting of Shareholders to be held on June 24, 2025.
Executive Officer､Executive Advisor (October 1, 2025)
| President & CEO | HASHIMOTO Osamu | － |
|---|---|---|
| Senior Managing Executive Officer | ANDOU Yoshinori | CHRO Responsibilities: Regional Strategy Division, Mitsui Chemicals Asia Pacific Ltd., Mitsui Chemicals(China) Co., Ltd., Mitsui Chemicals America, Inc., Mitsui Chemicals Europe GmbH, Human Resources Division, Global Human Resources Division |
| Senior Managing Executive Officer | HIRAHARA Akio | Business Sector President, ICT Solutions Business Sector |
| Senior Managing Executive Officer | IZAWA Kazumasa | Business Sector President, Basic & Green Materials Business Sector Responsibilities: Osaka Branch, Fukuoka Branch |
| Managing Executive Officer | SHIBATA Shingo | Center Executive, Research Center Responsibility: Intellectual Property Division |
| Managing Executive Officer | KOMORIYA Atsushi | Business Sector President, |
| Managing Executive Officer | YOSHIZUMI Fumio | President, Prime Polymer Co., Ltd. |
| Managing Executive Officer | SAMBE Masao | CDO Sector President, Digital Transformation Sector |
| Managing Executive Officer | OKADA Kazunari | Center Executive, Production & Technology Center Responsibilities: Ichihara Works, Nagoya Works, Osaka Works, Iwakuni-Ohtake Works, Omuta Works, Responsible Care |
| Managing Executive Officer | ICHIMURA Satoshi | CSO |
| Managing Executive Officer | HAYASHIDA Hiromi | Business Sector President, Life & Healthcare Solutions Business Sector |
| Managing Executive Officer | OMOTE Toshihiko | CTO Responsibilities: New Business Incubation Center, Fabrication Process Engineering Division, Technology Strategy Division, Research Center |
| Managing Executive Officer | MIGITA Ken | Responsibilities: Corporate Administration & Legal Division, |
| Managing Executive Officer | YOSHIDA Osamu | CFO Responsibilities: Finance & Accounting Division, Corporate Communications Division |
| Managing Executive Officer | Antonios Grigoriou | Representative in America President, Mitsui Chemicals America, Inc. Business Sector Vice President, Life & Healthcare Solutions Business Sector |
| Executive Officer | MATSUZAKA Shigeharu | President, RM Tohcello Co., Ltd. |
| Executive Officer | FUNAKOSHI Hiromitsu | Business Sector Vice President, Basic & Green Materials Business Sector |
| Executive Officer | TSURUDA Satoshi | General Manager, Omuta Works |
| Executive Officer | ZENKO Hirofumi | Research Center |
| Executive Officer | ABE Shinji | General Manager, Ichihara Works |
| Executive Officer | MATSUE Kaori | Responsibilities: RC & Quality Assurance Division, Corporate Sustainability Division, Responsible Care Committee, Corporate Sustainability Committee General Manager, Corporate Sustainability Division |
| Executive Officer | URAKAWA Toshiya | Sector Vice President, Digital Transformation Sector General Manager, Digital Transformation Planning & Coordination Division |
| Executive Officer | KOUZUMA Yasuhisa | General Manager, Iwakuni-Ohtake Works |
| Executive Officer | SAKAMOTO Akihiro | Technology Strategy Division |
| Executive Officer | OGIZAWA Masaaki | General Manager, Internal Control Division |
| Executive Officer | MAEDA Mitsutoshi | General Manager, Corporate Administration & Legal Division |
| Executive Officer | MOROZUMI Naoki | President, ARRK Corporation |
| Executive Officer | ANAMIZU Takayoshi | General Manager, Osaka Works |
| Executive Officer | KAKIMOTO Takeshi | President, Mitsui Chemicals Crop & Life Solutions, Inc. |
| Executive Officer | KASHIMORI Masashi | General Manager, Regional Strategy Division |
| Executive Officer | DEMOTO Yuko | General Manager, Finance & Accounting Division |
| Senior Executive Advisor | YOSHINO Tadashi | Special Missions Responsibilities: Production & Technology Center, Green Sustainable Chemicals Division |