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Overview

Nonferrous Metals

Mitsui Kinzoku Company,Limited

Mitsui Kinzoku is a diversified non-ferrous metals and advanced materials company operating across four segments: Functional Materials, Metals, Mobility, and Other. Its Functional Materials segment produces high-value products including ultra-thin copper foil (MicroThin™) for PCBs and advanced packaging, functional powders, battery materials, and sputtering targets (ITO), serving IoT/electronics and energy markets. The Metals segment covers zinc, lead, copper, and precious metals smelting and refining, as well as resource recycling, while the Mobility segment supplies automotive exhaust catalysts, door lock systems, and die-cast/powder metallurgy components to global automakers.

Market Cap

¥1,189B

US$7.58B

¥1,201B

US$7.66B

Stock¥2,078.5▼-1.59%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

7.1

LTM EV/EBIT

8.5

LTM PER

10.4

LTM PBR

2.8

Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+26.3%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Mar 4, 26Market-wide: Interest rate hike concerns

2Aug 10, 26FY3/27 net profit guidance -12% YoY misses market consensus, triggers sell-off

MC → EV Bridge

AI Briefing

Generating insights…

Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

78%

22%

EquityD/E 0.29xDebt

Liquidity vs Debt 5Y (¥B)▼ Net Debt

CashInv. Sec.Debt

Shareholders

Top 10 hold 40.5%

as of 2026-03-31 · Source: Annual Securities Report

The Master Trust Bank of Japan, Ltd. (Trust Account)

16.46%

Custody Bank of Japan, Ltd. (Trust Account)

8.59%

STATE STREET BANK AND TRUST COMPANY 505001 (Standing Proxy: Mizuho Bank, Ltd.)

3.23%

STATE STREET BANK AND TRUST COMPANY 505223 (Standing Proxy: Mizuho Bank, Ltd.)

2.79%

Nomura Trust and Banking Co., Ltd. (Investment Trust Account)

1.77%

BOFAS INC SEGREGATION ACCOUNT (Standing Proxy: BofA Securities Japan Co., Ltd.)

1.73%

HSBC HONG KONG-TREASURY SERVICES A/C ASIAN EQUITIES DERIVATIVES (Standing Proxy: The Hongkong and Shanghai Banking Corporation Limited, Tokyo Branch)

1.70%

MSIP CLIENT SECURITIES (Standing Proxy: Morgan Stanley MUFG Securities Co., Ltd.)

1.46%

Mitsui Kinzoku Company,Limited Employee Stock Ownership Association

1.37%

JP MORGAN CHASE BANK 385781 (Standing Proxy: Mizuho Bank, Ltd.)

1.36%

Management

10 officers

Takeshi OSAME

Director, Chairman

Apr 1986 Joined Mitsui Mining & Smelting Co., Ltd. Jun 2010 President, Mitsui Copper Foil (Malaysia) Sdn. Bhd. Oct 2013 General Manager, Recycling Promotion Department, Metals & Resources Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2014 Executive Officer; General Manager, Technology Control Department, Metals Division, Metals Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2015 Executive Officer; Deputy Head, Functional Materials Business Headquarters, and General Manager, Planning Department, Mitsui Mining & Smelting Co., Ltd. Jun 2015 Director and Executive Officer; Deputy Head, Functional Materials Business Headquarters, and General Manager, Planning Department, Mitsui Mining & Smelting Co., Ltd. Oct 2015 Director and Managing Executive Officer; Head, Functional Materials Business Headquarters, and General Manager, Planning Department, Mitsui Mining & Smelting Co., Ltd. Apr 2016 Representative Director, Managing Director and Managing Executive Officer; Head, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2020 Representative Director, Executive Vice President and Executive Vice President Executive Officer; Head, Business Creation Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2021 Representative Director, President, Mitsui Mining & Smelting Co., Ltd. Apr 2026 Director, Chairman, Mitsui Mining & Smelting Co., Ltd. (current)

1961-12-03

Shoji IKENOBU

Representative Director, President

Apr 1995 Joined Mitsui Mining & Smelting Co., Ltd. Jun 2013 General Manager, Technology Planning Department, Technology Control Division, Metals & Resources Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Jan 2015 Plant Manager, Ageo Plant, Production Planning Department, Copper Foil Division, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2016 General Manager, Planning Department, Metals Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2020 General Manager, Planning Department, Metals Business Headquarters; Deputy Division Head, Copper & Precious Metals Division; General Manager, Business Promotion Department, Mitsui Mining & Smelting Co., Ltd. Apr 2021 Executive Officer; General Manager, Corporate Planning Department, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2023 Executive Officer; Deputy Head, Corporate Planning Headquarters, and General Manager, Corporate Planning Department, Mitsui Mining & Smelting Co., Ltd. Jun 2023 Director and Executive Officer; Deputy Head, Corporate Planning Headquarters, and General Manager, Corporate Planning Department, Mitsui Mining & Smelting Co., Ltd. Apr 2024 Managing Director and Managing Executive Officer; Head, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2025 Representative Director, Executive Vice President and Executive Vice President Executive Officer; Head, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2026 Representative Director, President, Mitsui Mining & Smelting Co., Ltd. (current)

1971-02-12

Masato OKABE

Representative Director, Senior Managing Director (Senior Managing Executive Officer)

Apr 1986 Joined Mitsui Mining & Smelting Co., Ltd. Jun 2010 Director and Deputy General Manager, Taiwan Copper Foil Co., Ltd. Jun 2011 General Manager, Planning Department, Electronic Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Sep 2013 Assistant to General Manager, Catalyst Business Control Department, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Jan 2014 General Manager, Sales Department, Catalyst Business Control Department, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Oct 2015 Deputy Division Head, Catalyst Division, and General Manager, Sales Department, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2016 Executive Officer; General Manager, Catalyst Division, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Oct 2019 Executive Officer; Deputy Head, Functional Materials Business Headquarters, and General Manager, Catalyst Division, Mitsui Mining & Smelting Co., Ltd. Apr 2020 Managing Executive Officer; Head, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Jun 2022 Director and Managing Executive Officer; Head, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2023 Managing Director and Managing Executive Officer; Head, Functional Materials Business Headquarters, and General Manager, Planning Department, Mitsui Mining & Smelting Co., Ltd. Apr 2024 Representative Director, Senior Managing Director and Senior Managing Executive Officer; Head, Functional Materials Business Headquarters, Mitsui Mining & Smelting Co., Ltd. (current)

1963-05-05

Kazuhiko TOIDA

Outside Director

Apr 1975 Joined Nissan Motor Co., Ltd. Apr 2001 Managing Director (SVP), Global After-Sales, Nissan Motor Co., Ltd. Apr 2005 Managing Director (SVP), Japan Marketing & Sales; Chairman, MC-Dealer, Nissan Motor Co., Ltd. Apr 2009 Vice President and Director, Falltech Co., Ltd. Apr 2009 Chairman and Director, Altia Co., Ltd. Apr 2010 President and CEO, Falltech Co., Ltd. Apr 2017 Chairman and Representative Director, Falltech Co., Ltd. Jun 2017 Senior Advisor, Falltech Co., Ltd. Apr 2018 Managing Director, Rikkyo Gakuin Sep 2020 Chairman, Rikkyo Gakuin Jun 2020 Outside Director, Mitsui Mining & Smelting Co., Ltd. (current) Jun 2022 Chairman of the Board, Mitsui Mining & Smelting Co., Ltd. (current) Apr 2023 Advisor, Applied AI Innovation Center, Rikkyo University (current) Apr 2025 Chairman, Advisory Board, Graduate School of Artificial Intelligence, Rikkyo University (current) Jun 2025 Chairman, St. Stephen's Gakuen (current)

1952-07-02

Keiko TAKEKAWA

Outside Director

Apr 1981 Joined Prime Minister's Office (now Cabinet Office) Jul 2008 Deputy Director-General, Cabinet Office (Social Inclusion Policy) Jul 2009 Deputy Director-General, Cabinet Office (Gender Equality Bureau) Dec 2012 Director, Government Public Relations Office, Cabinet Office Jul 2014 Director-General, Gender Equality Bureau, Cabinet Office Apr 2019 Professor, Showa Women's University Jun 2019 Outside Audit & Supervisory Board Member, Mitsui Mining & Smelting Co., Ltd. Jun 2019 Outside Director, Nippon Telegraph and Telephone Corporation Apr 2020 Dean, Faculty of Global Business, Showa Women's University Apr 2020 Director, Institute for Women's Culture, Showa Women's University (current) Apr 2021 Special Professor, Showa Women's University (current) Apr 2021 Outside Director, Sekisui House, Ltd. Jun 2021 Outside Director, Mitsui Mining & Smelting Co., Ltd. (current) Dec 2025 Outside Director, Kanamic Network Co., Ltd. (current)

1958-04-23

Seiichiro YOSHIMOTO

Director

Apr 1992 Joined Mitsui Mining & Smelting Co., Ltd. Jun 2020 General Manager, Accounting Department, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2023 Executive Officer; General Manager, Accounting Department, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2026 Managing Executive Officer; Head, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. (current)

Kazuya SHIKI

Director, Audit and Supervisory Committee Member

Apr 1988 Joined Mitsui Mining & Smelting Co., Ltd. Jan 2016 General Manager, Legal Department, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. Apr 2019 Officer; General Manager, Legal Department, Corporate Planning Headquarters, Mitsui Mining & Smelting Co., Ltd. Jun 2024 Full-time Director, Audit and Supervisory Committee Member, Mitsui Mining & Smelting Co., Ltd. (current) Jun 2024 Chairman, Audit and Supervisory Committee, Mitsui Mining & Smelting Co., Ltd. (current)

1964-04-02

Toru ISHIDA

Outside Director, Audit and Supervisory Committee Member

Apr 1975 Joined Ministry of International Trade and Industry (now Ministry of Economy, Trade and Industry) Jul 2003 Senior Deputy Director-General, Minister's Secretariat, Ministry of Economy, Trade and Industry Sep 2005 Director-General, Trade and Economic Cooperation Bureau, Ministry of Economy, Trade and Industry Jul 2007 Director-General, Industrial Science and Technology Policy and Environment Bureau, Ministry of Economy, Trade and Industry Jul 2008 Commissioner, Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry Jan 2011 Adviser, Tokyo Electric Power Company, Inc. Jun 2013 Director, Nihon Alcohol Hanbai Co., Ltd. Jun 2014 Vice President and Director, Nihon Alcohol Hanbai Co., Ltd. Dec 2015 Senior Managing Director, Japan Chamber of Commerce and Industry and Tokyo Chamber of Commerce and Industry Jun 2018 Outside Audit & Supervisory Board Member, Mitsui Mining & Smelting Co., Ltd. Jun 2024 Outside Director, Sankyu Inc. (current) Jun 2024 Outside Director, Audit and Supervisory Committee Member, Mitsui Mining & Smelting Co., Ltd. (current)

1952-11-01

Hiroshi INOUE

Outside Director, Audit and Supervisory Committee Member

Apr 1985 Appointed Public Prosecutor Jan 2012 Deputy Director-General, Minister's Secretariat (Overall Policy), Ministry of Justice Nov 2012 Chief Public Prosecutor, Nara District Public Prosecutors Office Jul 2014 Commissioner, Immigration Bureau, Ministry of Justice Mar 2017 Director, Supervision and Guidance Department, Supreme Public Prosecutors Office Jun 2017 Chief Public Prosecutor, Nagoya District Public Prosecutors Office Feb 2018 Chief Public Prosecutor, Sapporo High Public Prosecutors Office Jan 2020 Chief Public Prosecutor, Fukuoka High Public Prosecutors Office Oct 2020 Registered as attorney-at-law; joined Momo-o, Matsuo & Namba (current) Jun 2021 Outside Audit & Supervisory Board Member, Mitsui Mining & Smelting Co., Ltd. Jun 2023 Outside Director, Audit and Supervisory Committee Member, Mazda Motor Corporation (current) Jun 2024 Outside Director, Audit and Supervisory Committee Member, Mitsui Mining & Smelting Co., Ltd. (current) Apr 2025 Outside Director, Audit and Supervisory Committee Member, Japan Custodian Bank, Ltd. (current)

1957-06-17

Sachiko KAWANISHI

Outside Director, Audit and Supervisory Committee Member

Apr 1981 Joined Honeywell Information Systems Japan K.K. Dec 1986 Joined Sanwa Tohmatsu Aoki Audit Corporation Aug 2000 Senior Managing Director, Internet Disclosure, Inc. (current) Jun 2016 Outside Audit & Supervisory Board Member, Duskin Co., Ltd. Jun 2024 Outside Director, Audit and Supervisory Committee Member, Mitsui Mining & Smelting Co., Ltd. (current)

1959-01-22

Large Shareholding Reports

Nomura Asset Management Co., Ltd.

2026-10-07

5.86%→6.36%

Capital Research and Management Company

2026-09-25

8.20%→3.68%

Capital Research and Management Company

2026-09-07

9.24%→8.20%

Nomura Asset Management Co., Ltd.

2026-07-22

6.52%→5.85%

Capital Research and Management Company

2026-07-07

5.49%→9.24%

Capital Research and Management Company

2026-06-22

5.49%

BlackRock Fund Advisors

2026-06-05

1.29%→2.27%

Nomura Asset Management Co., Ltd.

2026-06-04

6.65%→6.52%

Nomura Asset Management Co., Ltd.

2026-05-11

6.58%→6.65%

Nomura Asset Management Co., Ltd.

2026-04-06

6.39%→6.58%

Asset Management One Co., Ltd.

2026-03-23

5.24%→4.25%

Nomura Asset Management Co., Ltd.

2026-03-05

6.80%→6.39%

Nomura Asset Management Co., Ltd.

2025-12-19

8.14%→6.80%

Nomura Asset Management Co., Ltd.

2025-11-20

8.93%→8.14%

Asset Management One Co., Ltd.

2025-11-10

5.24%

Nomura Asset Management Co., Ltd.

2025-10-24

9.30%→8.93%

Nomura Asset Management Co., Ltd.

2025-10-07

9.42%→9.30%

Sumitomo Mitsui Trust Asset Management Co., Ltd.

2025-10-06

3.00%

Sumitomo Mitsui DS Asset Management Company, Limited

2025-10-06

5.38%→4.07%

Nomura Asset Management Co., Ltd.

2025-10-03

9.72%→9.42%

Sumitomo Mitsui Trust Asset Management Co., Ltd.

2025-09-19

2.65%→2.52%

Nomura Asset Management Co., Ltd.

2025-08-28

10.73%→9.72%

Nomura Asset Management Co., Ltd.

2025-08-05

10.28%→10.73%

Disclosures

No disclosures

Primary Source Filings

EDINET

2026-10-07

Large Shareholding Report

Mitsui Kinzoku Company,Limited

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Mitsui Kinzoku Company,Limited

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