H-ONE CO., LTD.

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Board Members

(As of April 1, 2025)

Directors

Representative Director Seiki Mayumi
Director Hiroyuki Watanabe
Director Masamichi Okuda
Outside Director Keiichiro Maruyama
Outside Director Kunihiro Todokoro
Outside Director Sawako Yamamoto

Audit & Supervisory Board Members

Audit & Supervisory Board Member Kazuo Yamashita
Audit & Supervisory Board Member (Outside) Hiroyuki Kawai
Audit & Supervisory Board Member (Outside) Hiroki Murakami

Operating Officers

President, Chief Executive Officer Seiki Mayumi
Executive Vice President, Executive Officer Masamichi Okuda
Managing Officer Yosuke Suwa
Managing Officer Masayuki Tanabe
Managing Officer Chris Millice
Senior Operating Officer Tatsuya Kawaguchi
Senior Operating Officer Hajime Sawaki
Senior Operating Officer Yoji Saito
Senior Operating Officer Taiji Miyamoto
Senior Operating Officer Takaharu Kato
Senior Operating Officer Shane Hall
Operating Officer Hiroyuki Takebe
Operating Officer Teruo　Ootake
Operating Officer Kenichi Miyamura
Operating Officer Masaya Nagata
Operating Officer Tamotsu Kamei
Operating Officer Ryuichi Nojiri
Operating Officer Yoshiaki Tsuchino

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