Chairman and Representative Director
YAMADA Masao

Apr.

1978

Joined the Company

Jun.

2003

Executive Officer

Apr.

2005

Executive Officer, President of Environmental Management & Recycling Company

Oct.

2006

Executive Officer, President and Representative Director of Dowa Eco-System Co., Ltd.

Apr.

2008

President and Representative Director of Kosaka Smelting & Refining Co., Ltd.;

Director of Dowa Metals & Mining Co., Ltd.

Jun.

2009

President and Representative Director

Jun.

2018

Chairman and Representative Director (current position)

Mar.

2019

Outside Director of Fujita Kanko Inc. (current position)

Jun.

2019

Outside Director of CK SAN-ETSU Co., Ltd. (Audit and Supervisory Committee Member) (current position)

Date of Birth

November 15, 1953

Number of years in
office as a director

16 years

Number of Company’s
Shares Held

9,733 shares