February 7, 2023
Denka Company Limited

Notice Regarding Personnel Changes in Representative Directors and Executive Officers
Denka Company Limited (Headquarters: Chuo-ku, Tokyo; President: Toshio Imai; hereinafter, “Denka”)
announces that its Board of Directors passed a resolution on changes in Representative Directors andExecutive Officers and changes in their work responsibilities at a meeting held on February 7, 2023. Details
are as follows.
1. Changes in Representative Directors(1) Reason for the change
To change the management setup.
(2) Details of the change
New Position

Chairman and DirectorRepresentative Director andSenior Managing Executive
OfficerCurrent Position
Chairman and Representative
Director

Director and Managing Executive
OfficerName

Manabu Yamamoto

Kazuo Takahashi(3) Career profile of the new Representative Director
Refer to the Annex.
(4) Scheduled date of changes in Representative Directors
April 1, 2023
2. Changes in Directors(1) Setup of Directors (To be submitted to the 164th Annual General Shareholders’ Meeting in late June)① Candidates for Director who are not Audit Committee Members
Manabu Yamamoto (Reappointment)
Toshio Imai (Reappointment)
Kazuo Takahashi (Reappointment)
Ikuo Ishida (New appointment, current Executive Officer⇒ Promoted to Managing Executive Officer in April)
Yoshiyuki Fukuda (Reappointed outside Director)

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② Candidates for Director who are Audit Committee Members
Mizuhiro Uchida(New appointment, full-time Audit Committee Member and General Manager of theInternal Control Dept.)

Toshio Kinoshita (Reappointed outside Director)
Akio Yamamoto (Reappointed outside Director)
Miyuki Matoba (Reappointed outside Director)(2) Directors to retire from office (Retirement from office due to the expiration of their term of office uponthe conclusion of the 164th Annual General Shareholders’ Meeting)① Directors who are not Audit Committee Members to retire from officeTetsuya Shinmura Will become an advisor in April.
② Directors who are Audit Committee Members to retire from office
Masaharu Suzuki

Will become an advisor after retiring from office.

3. Changes in Executive Officers (Effective April 1, 2023）
NameToshio Imai

New Position
No Change

Current Position
President and Chief Executive Officer
Senior Managing Executive Officer

Will become an advisor to the Company.
Tetsuya Shinmura(Will retire as Senior Managing Executive
Officer at the end of March.)

Chief Technical Officer (CTO)
Purchasing Dept., Logistics Dept.,
Production & Process Technology Dept.,
Engineering Dept., Digital Strategy &Innovation Dept.

Will become the Representative Director
and President of Akros Trading Co. Ltd. inmid-June
Koki Tabuchi(Will become an advisor to the Company

Managing Executive Officer

and an advisor to Akros Trading Co. Ltd.

Elastomers & Infrastructure Solutionsin April.)(Will retire as Managing Executive
Officer at the end of March.)
Managing Executive Officer
Will become an advisor to the Company.
Shojiro Watanabe(Will retire as Managing Executive
Officer at the end of March.)

Supervisor of Environmental Measures
Promotion
Internal Control Dept., Environment andSafety Dept., Sustainability Promotion
Dept., Quality Assurance Dept.

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Name

New Position

Current Position
Managing Executive Officer

Nobuyuki Yoshino

No Change

Chief Scientific Officer (CSO)
New Business Development

Managing Executive Officer
Kazuya Tokumoto

President of Denka Performance Elastomer
LLC

Hideki Takahashi

No Change

Managing Executive Officer
Chiba Plant
Managing Executive Officer
Life Innovation

Senior Managing Executive Officer

Kazuo Takahashi(Promoted)

Managing Executive Officer

Chief Technical Officer (CTO)

Chief Compliance Officer (CCO)

Chief Compliance Officer (CCO)

Chief Human Resource Officer (CHRO)

Purchasing Dept., Logistics Dept.,

HR Dept., Corporate Planning Dept.,

Production & Process Technology Dept.,

Corporate Communications Dept., DCU,Engineering Dept., Digital Strategy &DCG

Innovation Dept.
Rimiru Hayashida

Managing Executive Officer (Promoted)

Executive Officer

Accounting Dept., Finance Dept.

Accounting Dept., Finance Dept.

Will become an advisor to the Company.
Yoshimi Ishizuka(Will retire as Executive Officer at the endof March.)

Kiyoshi Asami

Executive Officer
Omuta Plant

Will become an advisor to the Company.

Executive Officer(Will retire as Executive Officer at the end

Secretary Dept., Administrative Dept.,of March.)

Legal Dept.

Managing Executive Officer (Promoted)
Chief Human Resource Officer (CHRO)
Ikuo Ishida

Corporate Planning Dept., HR Dept.,
Corporate Communications Dept., DCU,

Executive Officer
Electronics & Innovative Products

DCG, Chinese BusinessYasuo Nakatomi
Yukio Sasagawa

No Change

Executive Officer
Gosen Site

Executive Officer

Executive Officer

Omuta Plant

Shibukawa Plant

Will become a part-time employee
Mikio Shimizu(Assistant to the Chief Technical Officer)

Executive Officerof the Company.

President of Denka Performance(Will retire as Executive Officer at the end

Elastomer LLCof March.)

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Name

New Position

Current Position
Executive Officer

Hideki Toya

Assistant to New Business Development

No Change

Innovation Center

Executive Officer
Supervisor of Environmental Measures
Masanobu Kosaka

Promotion

Executive Officer

Environment and Safety Dept.,

Omi Plant

Sustainability Promotion Dept., Quality
Assurance Dept.

Kenjiro Ishizuka

Representative Director and President of

Executive Officer

Toyo Styrene Co., Ltd.

Polymer Solutions(Will retire as Executive Officer at the end

Representative Director and President ofof March.)

Toyo Styrene Co., Ltd.
Executive Officer

Michio Kawamura

No Change

Managing Director, DCHA, DSPL,DAPL

Executive Officer (Newly Appointed)

Deputy General Manager of Omuta

Chiba Plant

Plant
April 1, 1989 Joined the Company

Masahiro Kawai

Careersummary

February 1, 2014 Engineering Dept.,
General Manager of Chiba Engineering
July 1, 2021 Engineering Dept., General Manager of Omuta Engineering
April 1, 2022 Deputy General Manager of Omuta Plant

Takeshi Hagiwara

Executive Officer (Newly Appointed)

Engineering Dept., General Manager ofOmi Plant

Omi Engineering
April 1, 1990 Joined the Company

CareerApril 1, 2014 Engineering Dept., General Manager of Omuta Engineeringsummary September 1, 2017

Engineering Dept.,
General Manager of Omi Engineering

Masahiro Omata

Executive Officer (Newly Appointed)

General Manager, Corporate Planning

Elastomers & Infrastructure Solutions

Dept.

Careersummary

April 1, 1989 Joined the Company
April 1, 2019 General Manager of the Corporate Planning Office
April 1, 2020 General Manager of the Corporate Planning Dept.

Executive Officer (Newly Appointed)
Polymer Solutions
Kei Hara

Careersummary

General Manager of the HR Dept.

April 1, 1991 Joined the Company
January 1, 2014 President of DCU
April 1, 2021 General Manager of the HR Dept.

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Name

New Position

Current Position

Executive Officer (Newly Appointed)
Administrative Dept., Legal Dept.,
Ken Watanabe

General Manager of the Legal Dept.

Internal Control Dept., Secretary Dept.
Careersummary

October 1, 2017 Joined the Company
January 1, 2018

General Manager of the Legal Office

April 1, 2020 General Manager of the Legal Dept.

Executive Officer (Newly Appointed)
Electronics & Innovative ProductsElectronics & Innovative Products
General Manager of the Special
Conductive Materials Dept.

April 1, 1990 Joined the Company

Hiroto Horiuchi
Careersummary

June 1, 2015 General Manager of the Elastomer & Functional Resin,
Special Conductive Materials Dept.
npril 1, 2018 General Manager of the Electronics & Innovative
Products, Special Conductive Materials Dept.

Executive Officer (Newly Appointed)

Deputy Division Director

Shibukawa Plant

Elastomers & Infrastructure Solutions

April 1, 1992 Joined the Company
Tetsuo Noguchi

Careersummary

October 1, 2016

General Manager of Chiba Plant, Polymer Research

April 1, 2019 General Manager of Omi Plant, Organic Materials Research
April 1, 2022 Deputy General Manager of the Elastomers & InfrastructureSolutions(Note)
DCHA: Denka Chemicals Holdings Asia Pacific Pte. Ltd.
DSPL: Denka Singapore Pte. Ltd.
DAPL: Denka Advantech Pte. Ltd.
DCU: Denka Corporation
DCG: Denka Chemicals G.m.b.H

5 / 6Annex
Career profile of Kazuo Takahashi
Place of birth: Hiroshima Prefecture, Japan
Date of birth: March 30, 1960
Career Profile
March 1983

Graduated from School of Engineering, Hokkaido University

April 1983

Joined the Company

October 2013

Deputy General Manager of Chiba Plant

April 2015

General Manager of Ofuna Plant

April 2017

Executive Officer
Omuta Plant

April 2019

Executive Officer
President of Denka Performance Elastomer LLC

April 2021

Managing Executive OfficerChief Compliance Officer (CCO)
Corporate Planning Dept., Corporate Communications Dept., Automotive
Materials & Solutions Dept., DCU, DCG
Denka Value-Up Promotion

June 2021

Director and Managing Executive Officer
Chief Compliance Officer (CCO)
Corporate Planning Dept., Corporate Communications Dept., Automotive
Materials & Solutions Dept., DCU, DCG
Denka Value-Up Promotion

April 2022

Director and Managing Executive Officer
Chief Compliance Officer (CCO)
Chief Human Resource Officer (CHRO)HR Dept., Corporate Planning Dept., Corporate Communications Dept., DCU,DCG

April 2023

Representative Director and Senior Managing Executive Officer
Chief Technical Officer (CTO)
Chief Compliance Officer (CCO)
Purchasing Dept., Logistics Dept., Production & Process Technology Dept.,
Engineering Dept., Digital Strategy & Innovation Dept.

Number of the Company’s shares held
5,000 Shares

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