(As of April 1, 2026)

Directors

Title

Name

Nominating Committee

Remuneration Committee

Representative Director

SEKIGUCHI Akira

Director

TOBITA Minoru

Director

SUGAWARA Akira

Director

KATAGIRI Atsushi

Director

HOSONO Hiroyuki

Outside Director

KOIZUMI Yoshiko*

Outside Director

SATO Kimio*

● Chair

● Chair

Outside Director

SHIBAYAMA Atsushi*

Outside Director

YAMAGUCHI Junko*

* Independent Officer

Audit & Supervisory Board Members

Title

Name

Corporate auditor

(full-time)

KIMURA Ei

Corporate auditor

(full-time)

TSUTSUMI Azusa

Certified Public Accountant

Corporate auditor

(part-time)

OBA Koichiro

Attorney

Corporate auditor

(part-time)

KOMURO Shingo

Executive officers

Title

Name

Commissioned as

President and executive officer

CEO*1

SEKIGUCHI Akira

Vice president and executive officer

FUKUDA Kensaku

Vice president and executive officer

CIRO*2

TOBITA Minoru

Responsible for circular business innovation,

Quality Assurance Dept. and Environment & Safety Dept.

Managing executive officer

CTO*3

SUGAWARA Akira

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

Managing executive officer

CHRO*4

KATAGIRI Atsushi

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

Managing executive officer

CFO*5

HOSONO Hiroyuki

Responsible for Corporate Strategy Dept., Accounting Dept. and Finance Dept.

Executive officer

MATSUMOTO Kazuyuki

Deputy responsible officer for Business Innovation Research Dept. and Intellectual Property Dept.

Executive officer

YOSHIDA Hiroshi

Deputy responsible officer for Quality Assurance Dept. and Environment & Safety Dept.

Executive officer

YANAI Yasuharu

President and representative director,

DOWA ECO-SYSTEM CO., LTD.

Executive officer

SATO Shigeki

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

SUGAWARA Yoshiaki

President and representative director,

DOWA MANAGEMENT SERVICES CO., LTD.

General manager of General Affairs & Legal Dept.

*1 CEO:Chief Executive Officer

*2 CIRO:Chief Innovation & Risk Officer

*3 CTO:Chief Technical Officer

*4 CHRO:Chief Human Resources Officer

*5 CFO:Chief Financial Officer