(As of June 26, 2025)

Representative director

President and executive officer

CEO

TOBITA Minoru

Career

Director

Vice president and executive officer
CIRO

Responsible for circular business innovation,

Quality Assurance Dept. and Environment & Safety Dept.

SUGAWARA Akira

Career

Director

Managing executive officer
CTO

Responsible for Business Innovation Research Dept. and Intellectual Property Dept.

KATAGIRI Atsushi

Career

Director

Managing executive officer
CHRO

Responsible for Human Resources Dept. and General Affairs & Legal Dept.

HOSONO Hiroyuki

Career

Director

Managing executive officer
CFO

Responsible for Corporate Strategy Dept.,

Accounting Dept. and Finance Dept.

KOIZUMI Yoshiko*

Career

Outside director

Attorney
Partner of City-Yuwa Partners

SATO Kimio*

Career

Outside director

Honorary Senior Corporate Adviser of Nittetsu Mining Co., Ltd.

SHIBAYAMA Atsushi*

Career

Outside director

Dean of Faculty of International Resource Sciences, Akita University

Dean of Graduate School of International Resource Sciences, Akita University

YAMAGUCHI Junko*

Career

Outside director

* Independent Officer

Title

Name

Commissioned as

Corporate auditor (full-time)

KIMURA Ei

Corporate auditor (full-time)

TSUTSUMI Azusa

Corporate auditor (part-time)

OBA Koichiro

Corporate auditor (part-time)

KOMURO Shingo

Executive officer

YANAI Yasuharu

President and representative director,

DOWA ECO-SYSTEM CO., LTD.

Executive officer

FUKUDA Kensaku

President and representative director,

DOWA METALS & MINING CO., LTD.

Executive officer

SUZUKI Takehiko

President and representative director,

DOWA ELECTRONICS MATERIALS CO., LTD.

Executive officer

ONIOH Takashi

President and representative director,

DOWA METALTECH CO., LTD.

Executive officer

KAGAWA Koki

President and representative director,

DOWA THERMOTECH CO., LTD.

Executive officer

INOMATA Hirotoshi

President and representative director,

DOWA TECHNOLOGY CO., LTD.

Responsible for DX Promotion Dept.

Executive officer

WAKABAYASHI Eiichi

President and representative director,

DOWA MANAGEMENT SERVICES CO., LTD.

General manager of General Affairs & Legal Dept. and Secretarial Office