List of officers and Executive structure

(as of June 24, 2025)

Members of the Board Representative Member of the Board Yutaka Oka

Representative Member of the Board

 Takahiro Yamamoto

Member of the Board

 Junichi Ishikawa
Audit & Supervisory Board Member Aya Inada
Yutaka Wakaki
Executive Structure Representative Director & Executive Advisor to CEO Yutaka Oka ー
President & CEO Takahiro Yamamoto ー
Senior Vice President Junichi Ishikawa

General Manager, Shikoku Operations
Senior Vice President Teruaki Sasaki SAF Business Project
Senior Vice President Masanori Ozaki Auditing Department
Senior Vice President Takakazu Matsuura Environment, Safety & Quality Control Department
Senior Vice President Takahiro Kitajima

Marketing & Sales Planning Department,
Branches
Executive Officer Azuma Bitou Financial Department,
Team Leader, Funding Team, SAF Business Project
Executive Officer Mamoru Watanabe Japan Underground Oil Storage Co., Ltd.
Executive Officer Yusuke Tabuchi Taiyo Oil Sales Co., Ltd.
Executive Officer Giichi Ikebe

Logistics Management Department,
Industrial Energy Sales Department,
Information Systems Department,
Team Leader, Domestic raw materials procurement and sales team, SAF Business Project
Executive Officer Yasuhiro Funaki International Petro-Materials Business Department,
Team Leader, Overseas raw materials procurement and sales team, SAF Business Project
Executive Officer Takashi Suzuki

General Affairs Department,
General Affairs Department Matsuyama
Executive Officer Norio Yamakawa Taiyo Oil Sales Co., Ltd.
Executive Officer Noriyuki Maniwa Human Resources Department,
Legal & Credit Department
Executive Officer

Kuniaki Manabe

 Deputy General Manager, Shikoku Operations,
Refining Department,
Oil Transfer Department,
Plant Engineering Department, Production & Technology Department
Executive Officer

Takahiro Ishizuka

Corporate Planning Department,
Okinawa Operations
Deputy Executive Officer

Kazuhiro Onishi

Deputy General Manager, Shikoku Operations,
Environment & Safety Department,
General Affairs Department
Deputy Executive Officer

Yoshihiko Soeda

New Business Planning & Development Department,
Yamaguchi Operations,
Strategic Business Development Project in Yamaguchi Operations

Corporate Information