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Company Overview

Outline
Organizational Structure
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Name

TAIYO HOLDINGS CO., LTD.
Head Office

16F, Metropolitan Plaza Bldg., 1-11-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-0021, Japan
TEL: +81-3-5953-5200
Established

September 29, 1953
Business
Description

Holding company; the Group's overall business policy formulation and business management functions
Capital

10,031 million yen
End of
Fiscal Year

March 31
Number of
Employees

Consolidated: 2,485 Non-consolidated: 171
Board of
Directors
- Hitoshi Saito President, Chief Executive Officer
  
  Profile
- Keiko Tsuchiya Outside Board Director
  
  Profile
- Misae Maruyama Outside Board Director
  
  Profile
- Noriaki Shimamura Board Director (Audit and Supervisory Committee Member)
  
  Profile
- Hidenori Sugiura Outside Board Director (Audit and Supervisory Committee Member)
  
  Profile
- Ikumi Sato Outside Board Director (Audit and Supervisory Committee Member)
  
  Profile
President, Chief Executive Officer

Hitoshi Saito

Nov. 1995

Marketing Manager of WinSystem Inc. (WinSystem Europe)

Sep. 1996

Joined the Company

June. 2001

Managing Director of TAIYO INK INTERNATIONAL (SINGAPORE) PTE LTD

July. 2001

General Manager and Director of TAIYO INK (THAILAND) CO., LTD.

June. 2012

Director of TAIYO INK MFG. CO., LTD. (Present post)

June. 2016

Director of the Company

July. 2016

Board Director and Senior Executive Officer of the Company

Apr. 2019

Director of TAIYO AMERICA, INC. (Present post)

Oct. 2019

Director of TAIYO INK INTERNATIONAL (SINGAPORE) PTE LTD (Present post)

Feb. 2020

Director of TAIYO TRADING (THAILAND) CO., LTD. (Present post)

Apr. 2020

Chairman and CEO of TAIYO INK MFG. CO., (KOREA) LTD.

Apr. 2020

Chairman and CEO of TAIYO INK PRODUCTS CO., LTD.

May. 2020

Chairman of the Board of TAIWAN TAIYO INK CO., LTD. (Present post)

May. 2020

Director of ONSTATIC New Material (JiangXi) Co., Ltd. (Present post)

June. 2020

Director of TAIYO CIRCUIT AUTOMATION, INC. (Present post)

June. 2020

Chairman of TAIYO INK VIETNAM CO., LTD (Present post)

Oct. 2021

Chairman of the Board of ONSTATIC TECHNOLOGY CO., LTD. (Present post)

Dec. 2021

Chairman of the Board of TAIYO INK (SUZHOU) CO., LTD. (Present post)

Dec. 2021

Chairman of the Board of ONSTATIC INK (SHENZHEN) CO., LTD. (Present post)

Jan. 2022

Director of TAIYO INK MFG. CO., (KOREA) LTD. (Present post)

Jan. 2022

Director of TAIYO INK PRODUCTS CO., LTD. (Present post)

May. 2022

CEO of Electronics Company (Present post)

June. 2022

Executive Vice President of the Company (Present post)

Apr. 2025

Chairman of the board of Taiyang Feng Semiconductor Materials (SHENZHEN) CO., LTD. (Present post)

Apr. 2025

Chairman of the board of TAIYO INK TRADING (SHENZHEN) CO., LTD. (Present post)

June. 2025

President 、Group Chief Executive Officer (CEO)、Risk Management Officer of the company (Present post)

Outside Director

Keiko Tsuchiya

Apr. 1981

Joined DENTSU INC.

Apr. 1989

Joined Ferag Japan Co., Ltd

Apr. 1991

Joined Australian Trade Commission, Tokyo

Jan. 1994

HR Planning & Organizational Effectiveness Director of Becton Dickinson Co., Ltd.

July. 2004

Chief Researcher & Producer of Human Value, Inc.

Oct. 2005

Executive Officer and General Manager, Human Resources for Pacific Region of GE Toshiba Silicones Co., Ltd. (Current Momentive Performance Materials Japan LLC)

Jan. 2009

Senior HR Manager of Cisco Systems LLC

Feb. 2011

Vice President, Human Resources of Johnson & Johnson Medical Company

Aug. 2015

CHRO of Adecco Ltd., Japan

Jan. 2016

General Manager of People Value of Adecco Ltd., Japan

June. 2017

Outside Director of the Company (Present post)

June. 2019

Director of Teachers Initiative (Present post)

June. 2021

Outside Director of Nippon Light Metal Holdings Co., Ltd. (Present post)

Apr. 2024

Advisor of ToBeings Co., Ltd. (Present post)

June. 2024

Director of Educa & Quest Co., Ltd. (Present post)

June. 2024

Chairperson of the Board of Directors of the company (Present post)

Outside Director

Misae Maruyama

Oct. 1993

Joined Tohmatsu & Co. (Currently Deloitte Touche Tohmatsu LLC) Common shares – shares

Dec. 2011

Established Maruyama CPA Office (Present post)

Aug. 2021

Outside Corporate Auditor of 3-Shake Inc.

Mar. 2022

External Auditor of Yappli, Inc. (Present post)

May. 2023

Outside Director (Audit & Supervisory Committee Member) of dip Corporation (Present post)

June. 2024

Outside Audit & Supervisory Board Member of AYUMI Pharmaceutical Holdings Co., Ltd. (Present post)

June. 2025

Outside Director of the company (Present post)

Director, Audit and Supervisory
Committee
Member

Noriaki Shimamura

Apr. 1988

Joined Taiyo Holdings

Aug. 2008

Chairman of the Board and General Manager of the Sales Department of TAIWAN TAIYO INK CO.,LTD.

Apr. 2018

General Manager of the PCB Sales Department of TAIYO INK MFG. CO., LTD.

Oct. 2019

General Manager of PCB Materials Department of TAIYO INK MFG. CO., LTD.

Apr. 2020

General Manager of Kitakyushu Plant of TAIYO INK MFG. CO., LTD.

Jan. 2022

General Manager of Intellectual Property and Legal Affairs Department of the Company

June. 2024

Compliance Officer of Taiyo Holdings

July. 2024

Executive Officer of Taiyo Holdings (Present post)

June. 2025

Board Director (Full-time Audit & Supervisory Committee Member)of the company (Present post)

Director, Audit and Supervisory
Committee
Member(outside)

Hidenori Sugiura

Apr. 1984

Joined The Long-Term Credit Bank of Japan, Ltd.

July. 1998

Joined UBS Trust & Banking (Japan) Ltd.

July. 2000

Joined IBJ Securities Co., Ltd. (Current Mizuho Securities Co., Ltd.)

Oct. 2003

General Manager of Investment Banking Division No. 4 (Investment Banking Group) of Mizuho Securities Co., Ltd.

Apr. 2004

General Manager of Corporate Finance Division No. 1 (Capital Markets Group) of Mizuho Securities Co., Ltd.

Apr. 2005

Senior Fellow of Strategic Research Department (Management Planning Group) of Mizuho Securities Co., Ltd.

Apr. 2006

Associate Professor of Graduate School of Management, Kyoto University

Oct. 2007

Part-time Lecturer of Graduate School of Commerce and Management, Hitotsubashi University

Apr. 2008

Distinguished Professor of Graduate School of Management, Kyoto University

June. 2018

Outside Audit and Supervisory Board Member of the Company

Apr. 2019

Audit and Supervisory Board Member of Taiyo Pharma Tech Co., Ltd.

Apr. 2023

Auditor of ANZU no MORI FOUNDATION (Present post)

Nov. 2023

Outside Audit & Supervisory Board Member of Orion Breweries, Ltd. (Present post)

June. 2024

Outside Director (Audit and Supervisory Committee Member) of the Company (Present post)

Director, Audit and Supervisory
Committee
Member(outside)

Ikumi Sato

Apr. 1990

Registered as an attorney at law (Tokyo Bar Association)

Mar. 1992

Cancellation of registration in Tokyo Bar Association for travel to the United States

Sep. 1995

Registered as an attorney, State of New York, USA

Sep. 1995

Re-registered as an attorney at law (Daini Tokyo Bar Association)

Mar. 2013

Joined Yabuki Law Offices

Apr. 2017

Deputy Chair, Daini Tokyo Bar Association

Apr. 2018

Executive Governor, Japan Federation of Bar Associations

Apr. 2019

Information Disclosure and Personal Information Protection Commission Member, Ministry of Internal Affairs and Communications

June. 2019

Audit & Supervisory Board Member, DAI-DAN CO., LTD.

Jan. 2021

Partner and Attorney, Nozomi Sogo Attorneys at Law (Present post)

Apr. 2021

Executive Governor, Japan Attorneys National Pension Fund

June. 2021

Outside Director, DAI-DAN CO., LTD. (Present post)

June. 2022

Outside Audit and Supervisory Board Member of the Company

June. 2024

Outside Director (Audit and Supervisory Committee Member) of the Company (Present post)

June. 2024

Outside Director (Audit and Supervisory Committee Member), KOHDEN CORPORATION (Present post)
Subsidiaries
- Taiyo Ink Mfg. Co., Ltd.
- Taiyo Ink Products Co., Ltd.
- Taiyo Fine Chemicals Co., Ltd.
- Taiyo Green Energy Co., Ltd.
- Taiyo Pharma Tech Co., Ltd.
- Taiyo Pharma Co., Ltd.
- Taiyo Pharma Asia Co., Ltd.
- mystarz Co., Ltd.
- funlead corp.
- apex corp.
- Xseeds Co., Ltd.
- RIT Inc.
- Ranzan Shokudo Co., Ltd.
- Taiwan Taiyo Ink Co., Ltd.
- Taiyo Ink Mfg. Co., (Korea) Ltd.
- Taiyo Ink (Suzhou) Co., Ltd.
- Taiyo America, Inc.
- Taiyo Circuit Automation, Inc.
- Onstatic Technology Co., Ltd.
- Onstatic Ink (Shenzhen) Co., Ltd.
- Onstatic New Material (Jiangxi) Co., Ltd.
- Taiyo Ink Vietnam Co., Ltd.
- Taiyo Ink International (Singapore) Pte Ltd
- Taiyo Ink International (HK) Limited
- Taiyo Ink Trading (Shenzhen) Co., Ltd.
- Taiyo Trading (Thailand) Co., Ltd.