| Board Member | Representative Director | President | Hiroyoshi Tosa |
|---|---|---|---|
| Senior Executive Director | Production, GX, Financial ＆ Supply Chain | Yoichi Nishioka | |
| Senior Executive Director | Corporate R&D & Quality Assurance | Koichi Sorajo | |
| Senior Executive Director | Chemical Division | Ryuji Nakao | |
| Senior Executive Director |
Human Resources, I.P. & Legal, General Affairs & Compliance |
Miyuki Matsuba | |
| Senior Executive Director | Kenjiro Otsuka | ||
| Outside Senior Executive Director | Minoru Amoh | ||
| Outside Senior Executive Director | Yoshihiro Nomura | ||
| Auditors | Standing Auditor | Hidehiko Yashima | |
| Auditor | Junya Otsuka | ||
| Auditor | Yozo Toba | ||
（March 4, 2026）