Directors｜EARTHTECHNICA CO,LTD
| President and Representative Director | Fumio Onishi |
|---|---|
| Director | Toshihide Kamase |
| Director | Fumikazu Otsuki |
| Director | Masaki Hamaguchi |
| Director | Toshiyuki Mimura |
| Auditor | Kaname Otani |
| Auditor | Akio Ishihara |
| Auditor | Tatsuharu Otani |
