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Chemicals

TAOKA CHEMICAL COMPANY,LIMITED

Taoka Chemical Co., Ltd. is a fine chemicals manufacturer producing specialty chemical products including precision chemicals (pharmaceutical and agrochemical intermediates), electronic materials, rubber chemicals, resin additives, processing resins, plasticizers, and high-performance adhesives. The company serves diverse industries such as electronics, mobility, and healthcare, and also offers contract synthesis services leveraging its proprietary technologies. Its products are highly regarded across industrial sectors as essential components for manufacturing higher value-added goods.

Market Cap

¥11.4B

US$73.0M

¥10.8B

US$68.7M

Stock¥799▼-0.87%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

3.3

LTM EV/EBIT

7.4

LTM PER

10.5

LTM PBR

0.6

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-62.2%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Oct 29, 25Q2 profit decline, full-year guidance cut

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

95%

EquityD/E 0.05xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 61.4%

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

SUMITOMO CHEMICAL COMPANY,LIMITED

50.58%

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

2.60%

NORTHERN TRUST CO.(AVFC) RE U.S. TAX EXEMPTED PENSION FUNDS SEC LENDING (Standing Proxy: The Hongkong and Shanghai Banking Corporation Limited, Tokyo Branch)

1.56%

TAOKA CHEMICAL COMPANY,LIMITED Employee Stock Ownership Association

1.15%

Rakuten Securities, Inc. (Joint Account)

1.13%

Custody Bank of Japan, Ltd. (Trust Account)

1.11%

Yukinori MASUTANI

1.01%

RE FUND 107-CLIENT AC (Standing Proxy: Citibank, N.A., Tokyo Branch)

0.85%

STATE STREET BANK AND TRUST COMPANY 505225 (Standing Proxy: Mizuho Bank, Ltd.)

0.72%

JPMorgan Securities Japan Co., Ltd.

0.71%

Management

12 officers

Akira IWASAKI

President and Representative Director

Apr 1987 Joined Sumitomo Chemical Industries, Ltd. (currently Sumitomo Chemical Co., Ltd.) Apr 2013 General Manager, Technology and Business Planning Office, Sumitomo Chemical Co., Ltd. Sep 2015 General Manager, Technology and Business Planning Office; General Manager, Asia Business Office, Sumitomo Chemical Co., Ltd. Apr 2016 General Manager, Management Administration Department, Sumitomo Chemical Co., Ltd. Apr 2018 Executive Officer, Sumitomo Chemical Co., Ltd. Jun 2019 Executive Officer, Sumitomo Chemical Co., Ltd.; Director, Taoka Chemical Co., Ltd. Apr 2023 Director, in charge of special assignments, Taoka Chemical Co., Ltd. Jun 2023 Director and Vice President; General Manager, Business Support Office, Taoka Chemical Co., Ltd. Jun 2025 Representative Director, President; General Manager, Business Support Office, Taoka Chemical Co., Ltd. Sep 2025 Representative Director, President (current)

1964-12-18

Shunji MATSUO

Managing Director, General Manager of Sales Division, Manager of Tokyo Branch, Sales Division

Apr 1988 Joined Taoka Chemical Co., Ltd. Nov 2011 General Manager, Business Support Office (Inspection Business); General Manager, Business Support Office (Planning), Taoka Chemical Co., Ltd. Jul 2018 Officer; General Manager, Business Support Office (Inspection Business) and (Planning), Taoka Chemical Co., Ltd. Jul 2019 Officer, attached to Office of General Manager, Business Support Office (China Project); General Manager, Business Support Office (Inspection Business) and (Planning), Taoka Chemical Co., Ltd. Oct 2019 Officer; seconded to Taoka Chemical Materials (Shanghai) Co., Ltd. Jun 2021 Director; Chairman and General Manager, Taoka Chemical Materials (Shanghai) Co., Ltd. Jun 2022 Director; General Manager, Sales Division; Manager, Tokyo Branch, Sales Division; General Manager, Fine Chemicals Division and Functional Materials Division, Taoka Chemical Co., Ltd. Jun 2024 Managing Director; General Manager, Sales Division; Manager, Tokyo Branch, Sales Division; General Manager, Fine Chemicals Division and Functional Materials Division, Taoka Chemical Co., Ltd. Jun 2025 Managing Director; General Manager, Sales Division; Manager, Tokyo Branch, Sales Division (current) Representative Director, Taoka Chemical India Private Limited (concurrent)

1965-08-31

Katsuji IMI

Managing Director, General Manager of Technology Division, Head of Research Laboratories

Apr 1987 Joined Sumitomo Chemical Industries, Ltd. (currently Sumitomo Chemical Co., Ltd.) Apr 2015 General Manager, Energy and Functional Materials Business Office, Sumitomo Chemical Co., Ltd. Oct 2021 Officer, Taoka Chemical Co., Ltd.; Deputy General Manager, Technology Division; General Manager, Responsible Care Office, Technology Division Jun 2022 Director; General Manager, Technology Division; Head of Research Laboratories Jun 2025 Managing Director; General Manager, Technology Division; Head of Research Laboratories (current)

1963-02-22

Motoyuki ISE

Managing Director, General Manager of Production Division, Plant Manager, Yodogawa Plant

Mar 1985 Joined Taoka Chemical Co., Ltd. Apr 2013 General Manager, Manufacturing Department, Harima Plant, Production Division Jul 2018 Officer; Deputy Plant Manager, Harima Plant, Production Division Jan 2019 Officer; General Manager, Technology Office, Technology Division; Deputy Plant Manager, Harima Plant, Production Division Feb 2019 Officer; General Manager, Technology Office, and General Manager, Technology Department, Technology Division; Deputy Plant Manager, Harima Plant, Production Division Apr 2019 Officer; General Manager, Technology Office, and General Manager, Technology Department (Yodogawa), Technology Division May 2022 Officer; Plant Manager, Yodogawa Plant, Production Division Jun 2022 Director; General Manager, Production Division; Plant Manager, Yodogawa Plant May 2023 Director; General Manager, Production Division Jun 2025 Managing Director; General Manager, Production Division Jun 2026 Managing Director; General Manager, Production Division; Plant Manager, Yodogawa Plant (current)

1962-03-21

Ken OKAJIMA

Managing Director, General Manager of General Affairs and Human Resources Office, Head of Internal Control and Audit Department

Apr 1990 Joined Sumitomo Chemical Industries, Ltd. (currently Sumitomo Chemical Co., Ltd.) Oct 2014 Chief Specialist, Human Resources Department, Sumitomo Chemical Co., Ltd. Jul 2019 General Manager, General Affairs Department, Chiba Plant, Sumitomo Chemical Co., Ltd. May 2023 General Manager, General Affairs and Human Resources Office, Taoka Chemical Co., Ltd. Jun 2023 Director; General Manager, General Affairs and Human Resources Office; Head of Internal Control and Audit Department, Taoka Chemical Co., Ltd. Jun 2026 Managing Director; General Manager, General Affairs and Human Resources Office; Head of Internal Control and Audit Department (current)

1965-08-04

Shinji HORIUCHI

Managing Director, General Manager of Business Support Office

Apr 1992 Joined Sumitomo Chemical Industries, Ltd. (currently Sumitomo Chemical Co., Ltd.) Apr 2016 Chief Specialist, Accounting Department, Sumitomo Chemical Co., Ltd. Oct 2017 Deputy General Manager, Accounting Department, concurrently Management Administration Department, Sumitomo Chemical Co., Ltd. Jul 2018 Deputy General Manager, Management Administration Department, Sumitomo Chemical Co., Ltd. Apr 2019 Deputy General Manager, Management Administration Department and Accounting Department, Sumitomo Chemical Co., Ltd. Apr 2020 Deputy General Manager, Accounting Department, Sumitomo Chemical Co., Ltd. Apr 2021 Seconded to Sumitomo Chemical America, Inc. Apr 2024 Deputy General Manager, Essential Chemicals Business Office, Sumitomo Chemical Co., Ltd. Jul 2024 Officer, Sumitomo Chemical Co., Ltd. Sep 2025 Managing Officer; General Manager, Business Support Office, Taoka Chemical Co., Ltd. Jun 2026 Managing Director; General Manager, Business Support Office (current)

1969-12-02

Yasuo YOSHINO

Director

Apr 1993 Joined Sumitomo Chemical Industries, Ltd. (currently Sumitomo Chemical Co., Ltd.) Jun 2014 Chief Specialist, Information and Electronic Chemicals Business Office; General Manager, New Materials Sales Department, Electronic Materials Business Division, Sumitomo Chemical Co., Ltd. Apr 2020 Chief Specialist, Corporate Planning Department, Sumitomo Chemical Co., Ltd. Apr 2022 General Manager, Corporate Planning Department (General Planning), Sumitomo Chemical Co., Ltd. Jan 2024 General Manager, Information and Electronic Chemicals Business Office (Planning and General Affairs), Sumitomo Chemical Co., Ltd. Oct 2024 General Manager, ICT & Mobility Solutions Business Office, Sumitomo Chemical Co., Ltd. (current) Jun 2026 Director, Taoka Chemical Co., Ltd. (current)

1971-02-04

Yo TANABE

Director

Apr 1991 Associate Professor, Department of Chemistry, Faculty of Science, Kwansei Gakuin University Apr 1997 Professor, Department of Chemistry, Faculty of Science, Kwansei Gakuin University Apr 2001 Professor, Department of Chemistry, School of Science and Technology, Kwansei Gakuin University (following reorganization) Jun 2020 Director, Taoka Chemical Co., Ltd. (current) Apr 2021 Professor, Department of Chemistry, Kwansei Gakuin University (following reorganization) Apr 2023 Professor Emeritus, Faculty of Science, Kwansei Gakuin University (current)

1955-02-07

Rokuji INUI

Director (Audit and Supervisory Committee Member)

Apr 1986 Joined Sumitomo Chemical Industries, Ltd. (currently Sumitomo Chemical Co., Ltd.) Aug 2011 General Manager, Operations Department, Ehime Plant, Sumitomo Chemical Co., Ltd. Jun 2013 Seconded to Sumitomo Chemical Singapore Pte. Ltd. (currently Sumitomo Chemical Asia Pte. Ltd.) Apr 2017 Executive Officer, Nihon Medi-Physics Co., Ltd. Apr 2022 Advisor, Taoka Chemical Co., Ltd. Jun 2022 Director (Audit and Supervisory Committee Member), Taoka Chemical Co., Ltd. (current)

1962-09-26

Hiroyuki KONISHI

Director (Audit and Supervisory Committee Member)

Apr 1976 Joined Osaka National Tax Bureau, National Tax Agency Jul 2006 Director, Abeno Tax Office Jul 2007 General Manager, Investigation Planning Division, Osaka National Tax Bureau Jul 2009 Director, Higashiyodogawa Tax Office Jul 2011 Deputy Director, Investigation Division II, Osaka National Tax Bureau Jul 2012 Director, Shimogyo Tax Office Jul 2013 Retired from National Tax Agency Aug 2013 Opened Hiroyuki Konishi Certified Tax Accountant Office (current) Jun 2017 Director (Audit and Supervisory Committee Member), Taoka Chemical Co., Ltd. (current) Mar 2018 Outside Audit & Supervisory Board Member, Seiwa Chuo Holdings Co., Ltd. (current)

1953-02-21

Yuji FUJISAKI

Director (Audit and Supervisory Committee Member)

Apr 1974 Joined Sumitomo Bank, Ltd. (currently Sumitomo Mitsui Banking Corporation) Jun 2002 General Manager, Head Office Corporate Banking Department No. 8, Sumitomo Bank, Ltd. Jun 2003 General Manager, Credit Department No. 1, Sumitomo Bank, Ltd. Sep 2005 General Manager, Business Promotion Department, Sumitomo Warehouse Co., Ltd. Jun 2006 Officer, Sumitomo Warehouse Co., Ltd. Oct 2010 Officer, Tenma Corporation Jun 2011 Full-time Audit & Supervisory Board Member, Tenma Corporation Apr 2013 Managing Executive Officer, Tenma Corporation Apr 2014 President and Executive Officer, Tenma Corporation Jun 2014 Representative Director, President, Tenma Corporation Jun 2016 Vice Chairman and Director, Tenma Corporation Apr 2018 Outside Director, Inbound Tech Co., Ltd. Jun 2020 Director (Audit and Supervisory Committee Member), Taoka Chemical Co., Ltd. (current)

1950-09-07

Masako YAGURA

Director (Audit and Supervisory Committee Member)

Apr 1987 Registered with Osaka Bar Association Apr 2000 Opened Asuka Law Office (current) Apr 2013 Vice President, Osaka Bar Association; Director, Japan Federation of Bar Associations (until Mar 2014) Apr 2016 Acting Director, Gender Equality Promotion Headquarters, Osaka Bar Association (until Mar 2018) Jun 2020 Director (Audit and Supervisory Committee Member), Taoka Chemical Co., Ltd. (current) Jan 2021 Outside Director, Jinto Paint Co., Ltd. (current) Apr 2022 Vice President, Japan Federation of Bar Associations (until Mar 2023) May 2025 Outside Director (Audit and Supervisory Committee Member), Wakita & Co., Ltd. (current) Jun 2025 Outside Audit & Supervisory Board Member, Takara Holdings Inc. (current)

1960-03-22

Large Shareholding Reports

No filings

Disclosures

No disclosures

Primary Source Filings

EDINETAmended

2026-08-27

Amended Annual Securities Report

Period: Apr 2025 – Mar 2026

TAOKA CHEMICAL COMPANY,LIMITED

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TAOKA CHEMICAL COMPANY,LIMITED

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