| ＊ | Chairman | Kazuhiko Masuda | ||
|---|---|---|---|---|
| ＊ | President | Shigenori Yamauchi | ||
| ＊ | Director | Junichiro Ueno | ||
| Director | Shujiro Ito | |||
| Director | Shigekazu Shiraishi | |||
| Director | Makoto Ando | |||
| Director | Shigenaga Mimura | |||
| Director | Hiroshi Ikeda | （Outside） | President, Sumikei Copper Tube | |
| Director | Keizo Shoji | （Outside） | President, Sumikei Techno | |
| (Standing) Corporate Auditor |
Junji Hatahara | |||
| Corporate Auditor | Eiichi Mohri | |||
| Corporate Auditor | Tetsuya Harada | （Outside） | ||
| Corporate Auditor | Akari Asano | （Outside） | ||
| Corporate Auditor | Takashi Sone | （Outside） |
| Executive Officer | Name | Responsibilities |
|---|---|---|
| President | Shigenori Yamauchi | − |
| Senior Managing Executive Officer | Junichiro Ueno | General Manager Production Division |
| Senior Managing Executive Officer | Shujiro Ito | General Manager Marketing & Sales Division |
| Senior Managing Executive Officer | Shigekazu Shiraishi | General Manager Corporate Administration Division |
| Senior Managing Executive Officer | Makoto Ando | − |
| Managing Executive Officer | Shigenaga Mimura | Internal Control System Development Department, Planning & Control Department, Treasury Department |
| Managing Executive Officer | Hiroshi Ikeda | President, Sumikei Copper Tube |
| Managing Executive Officer | Keizo Shoji | President, Sumikei Techno |
| Managing Executive Officer | Kazufumi Abe | General Affairs Department, Personnel Department, Human Resources Development Department, Purchasing Department |
| Executive Officer | Kazuhisa Shibue | General Manager, Research & Development Center, Technology Department |
| Exective Officer | Tatsuro Matsuura | Director, Sumikei Techno |
| Exective Officer | Youji Shimizu | Automotive Materials Marketing & Sales Department |
| Exective Officer | Mizuho Taneoka | Deputy General Manager, Marketing & Sales Division |
| Exective Officer | Miyuki Ishihara | Deputy General Manager, Production Division, General Manager, Nagoya Work |
| Exective Officer | Teiichi Abe | Director, Sumikei Techno |
| Exective Officer | Teruo Kawashima | Deputy General Manager, Corporate Administration Division |
