Corporate auditor (full-time)

KIMURA Ei

Apr.

1987

Joined the Company

Apr.

2007

General Manager of Strategic Planning Dept., Management Headquarters, Dowa Thermotech Co., Ltd.

Apr.

2011

Director and General Manager of Strategic Planning Dept., Dowa Thermotech Co., Ltd.

Apr.

2013

Director and General Manager of General Affairs Dept., Kosaka Smelting & Refining Co., Ltd.

Apr.

2018

Managing Director and General Manager of General Affairs Dept., Kosaka Smelting & Refining Co., Ltd.

Apr.

2022

Senior Managing Director and General Manager of General Affairs Dept., Kosaka Smelting & Refining Co., Ltd.

Apr.

2024

Executive Vice President of Dowa Management Service Co., Ltd.

Jun.

2025

Corporate auditor (current position)

Date of Birth

June 20, 1963

Number of years in
office as a

corporate auditor

1 year

Number of Company’s
Shares Held

20 shares