President and Representative Director

SEKIGUCHI Akira

Apr.

1983

Joined the Company

Oct.

2006

Director of Dowa Metals & Mining Co., Ltd.

Apr.

2011

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

Apr.

2013

Executive Officer, President and Representative Director of Dowa Metals & Mining Co., Ltd.

Apr.

2018

Chairman of Japan Mining Industry Association (until March 2019)

Jun.

2018

President and Representative Director (current position)

Date of Birth

October 18, 1960

Number of years in
office as a director

6 years

Number of Company’s
Shares Held

4,388