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Committees >
Executive Committee

Mr. Kiyoharu Mizushima
Chairman of the Committee
Mr. Kiyoharu Mizushima
Position President/ Chairman of Executive Committee/ Vice-Chairman of Risk Management and Sustainability Committee/ Executive Director / Authorized Director 
Appointment Year 2025
Shareholding Proportion None
Highest Education

Bachelor's Degree in Engineering, Yamagata University, Japan
Training

        -

Past 5-year Working Experience
2024 - Executive Officer of Inoac Corporation Co., Ltd. (Japan)
2018 - 2024 - General Manager of Inoac Corporation Co., Ltd. (Japan)

Mrs. Pimjai Leeissaranukul
Vice Chairman of Executive Committee
Mrs. Pimjai Leeissaranukul ​
Position Chairman/ Executive Chairman/ Vice-Chairman of the Executive Committee/ Authorized Signatory Director
Appointment Year 1993
Shareholding Proportion 2.90%
Highest Education

Master’s Degree in Business Administration, Drexel University, Philadelphia, USA

Training 

Thai Institute of Directors Association (IOD):

  • Director Certification Program (DCP) Class 37/2003
  • Role of the Chairman Program (RCP) Class 31/2013
  • Risk Management Committee Program (RMP) Class 1/2013
Past 5-year Working Experience ​
2013 – Present - Chairman, Executive Chairman and Vice-Chairman of the Executive Committee of Inoue Rubber (Thailand) PCL.
2023 – Present - Vice Chairman of National Defense College (NDC) Class 26 Committee
2020 – Present - Member of the Board of Regional Center for Manufacturing System Engineering (RCMSE), Faculty of Engineering, Chulalongkorn University
  - Member of the Board of government procurement and supplies management sector, the Comptroller General’s Department
2018 – Present - Vice President of the Federation of Thai Industries
2017 – Present - The Board Member of ASEAN Woman Entrepreneur Network (AWEN)
2016 – Present - Director of Suporntavit Co., Ltd.
- Member of the Board, Association of Capital Market Academy (ACMA)
2014 – Present - Consultants of the Board of Thai Women Engineers, The Engineering Institute of Thailand
2013 – Present - Honorary Chairman, Inoac Tokai (Thailand) Co., Ltd.
2010 – Present - Global Advisory Board Members, Babson College, MA, USA
2008 – Present - Member of Young Thai Entrepreneur Association (YTEA)
2006 – Present - Director, Daido Sittipol Co., Ltd.
2001 – Present - Director, Kinno Hoshi Engineering Co., Ltd.
1995 – Present - Director, Sungold Holding Co., Ltd.
- Director, IRC (Asia) Research Co., Ltd.
- President, Thai Inoac Components Co., Ltd.
1993 – Present - Director, Sopa-Kanok Internatioal Co., Ltd.
1983 – Present - Director, Thai Stanley Electric PCL.

Mr. Kanin Laochinda
Executive Director/ Managing Director
Mr. Kanin Laochinda
Position Executive Director/ Managing Director
Appointment Year 2023
Shareholding Proportion        0.68 %
Highest Education

Master of Business Administration (MBA), Sasin Graduate Institute of Business Administration of Chulalongkorn University

Training

Thai Institute of Directors Association (IOD):

  • Risk Management Program for Corporate Leaders (RCL) 29/2022

Past Working Experience
2023 – Present - Executive Director and Managing Director of Inoue Rubber (Thailand) PCL.
2022 – Present  - Member of Risk Management Committee of Inoue Rubber (Thailand) PCL.
2020 – Present - General Manager of Business Development Unit of Inoue Rubber (Thailand) PCL.
2020 – Present - Director of Wangchula Hi-Tech Co., Ltd.
2016 – Present - Director of Suporntavit Co., Ltd.

Mr. Akira Tokoro
Executive Director/ Managing Director
Mr. Akira Tokoro
Position Executive Director/ Managing Director
Appointment Year 2022
Shareholding Proportion     None
Highest Education

Bachelor of Engineering, Nagoya Institute of Technology, Japan
Training

       -

Past Working Experience
2022 – Present - Executive Director of Motorcycle Tire & Tube Business Unit, Inoue Rubber (Thailand) PCL.
2016 – 2022 - Global Tech & QA Department Manager of Inoue Rubber Co., Ltd. (Japan)

 


Ms. Witchuda Kupongsak
Executive Director
Ms. Witchuda   Kupongsak
Position Executive Director of Administrative and Control Unit
Appointment Year 2013
Shareholding Proportion -
Highest Education

Master of Business Administration, Thammasat University

Training

Thai Institute of Directors Association (IOD):

  • Director Accreditation Program Class 117/2015
  • Ethical Leadership Program Class 2/2015
  • Successful Formulation & Execution of Strategy Class 28/2013  

Other Training:

  • CEDI - Babson Entrepreneurial Leadership Program Babson College

Past Working Experience
2015 – Present - Executive Director, Administrative & Control Unit,
   Inoue Rubber (Thailand) PCL.
2016 – Present  - Director, Thai Inoac Component Co., Ltd.
2013 – Present - Member of Executive Committee, Inoue Rubber (Thailand) PCL.
2001 – Present - Director, Kinno Hoshi Engineering Co.,Ltd.
1998 – Present - Director, Inoue Rubber (Vietnam) Co., Ltd.

Mr. Tatsuo Kubota
Executive Director
Mr. Tatsuo Kubota
Position Executive Director of IED Business Unit
Appointment Year 2022
Shareholding Proportion None
Highest Education

Bachelor of Engineering, Meijo University, Japan
Training

       -

Past Working Experience
2022 – Present - Executive Director of IED Business Unit of Inoue Rubber (Thailand) PCL.
2022 – Present - Executive Director of IRC (Asia) Research Limited
2020 - 2022 - Manager of Elastomer Engineering Division of Inoac Corporation Co., Ltd.
2016 - 2020 - Manager of Automotive Design and Engineering Division of Inoac Corporation Co., Ltd.

Mr. Suchart Kootiratrakarn
Executive Director
Mr.Suchart Kootiratrakarn
Position Executive Director of Tire&Tube Business Unit / Member of Risk Management Committee
Appointment Year 2013
Shareholding Proportion 0.0005%
Highest Education

Master of Business Economics, National Institute of Development Administration (NIDA)

Training

Thai Institute of Directors Association (IOD):

  • Director Accreditation Program Class 159/2019
  • How to Develop a Risk Management Plan Class 8/2015
  • Financial Statements for Directors Class 18/2012
  • Risk Management Committee Program Class  5/2014

Other Training:

  • Babson Entrepreneurial Leadership Program  Babson College (CEDI)

Past Working Experience
2023 - Present

Executive Director of Tire-Tube Business Unit of Inoue Rubber (Thailand) PCL.

Executive Director of IRC (Asia) Research Ltd.
2013 – Present - Member of Risk Management Committtee, Inoue Rubber (Thailand) PCL.

Mr. Narongchai Rattanaekkawin
Executive Director
Mr. Narongchai Rattanaekkawin​
Position Executive Director of IED Business Unit/ Member of Risk Management Committee
Appointment Year 2014
Shareholding Proportion 0.005 %
Highest Education

Master of Science in Computer and Engineering Management (MS(CEM), Assumption University
Training

Thai Institute of Directors Association (IOD):

  • Director Accreditation Program Class 159/2019
  • Successful Formulation & Execution of Strategy Class
    28/2016
  • How to Develop a Risk Management Plan Class 8/2015
  • Financial Statements for Directors Class 18/2012
  • Risk Management Committee Program Class 5/2014

Other Training:

  • Babson Entrepreneurial Leadership Program Babson College (CEDI)
  • Thai Railway Engineer Program, NSTDA
  • ISO9001:2000         Internal Auditing, Robere & Associates
  • ISO/TS16949:2002 Internal Auditing, Robere & Associates
  • ISO14001                Internal Auditing, Robere & Associates

Past Working Experience
2023 - Present - Executive Director, IED Business Unit of Inoue Rubber (Thailand) PCL.
- Executive Director of R&D Division, IRC (Asia) Research Ltd.
2016 – Present - Director, Kinno Hoshi Engineering Co., Ltd.
2015 – Present - Member of Risk Management Committee, Inoue Rubber (Thailand) PCL.
2013 – Present - Director of IRC (Asia) Research Ltd.   

Mr. Hiroyuki Hibi
Executive Director
Mr. Hiroyuki  Hibi
Position Member of Executive Committee
Appointment Year 2016
Shareholding Proportion None
Highest Education

Bachelor Degree of Economics, Ritsumeikan University
Training from Thai Institute of Directors Association (IOD)​

       -
Past 5-year Working Experience ​
2016 – Present - Executive Director of Inoue Rubber (Thailand) PCL.
  - Director of Kinno Hoshi Engineering Co., Ltd.
2021 – Present - Commissioner of PT. Inoac Polytechno Indonesia 
2015 – Present - Director of Inoac Tokai Thailand Co., Ltd.

Mr. Kazuaki Yamada
Executive Director
Mr. Kazuaki Yamada
Position Executive Director
Appointment Year 2019
Shareholding Proportion None
Highest Education

Bachelor's degree in Accounting, Shiga University
Training

        -

Past Working Experience
2019 – Present - Executive Director of Inoue Rubber (Thailand) Public Co., Ltd.
2021 – Present - Accounting Manager of Inoac Housing & Construction Material Co., Ltd.
2015 – Present - Advisor of Inoac (Thailand) Co., Ltd.

Ms. Praewphan Songhong
Executive Director
Ms. Praewphan Songhong
Position Chief Financial Officer/ Executive Director/ Member of Risk Management Committee/ Manager of Finance Division
Appointment Date 2021
Shareholding Proportion None
Highest Education
  • Master of Business Administration, Majoring in Finance, Eastern Asia University

Training

Thai Institute of Directors Association (IOD)

  • Financial Statements for Directors (FSD)
  • Director Accrediation Program (DAP) 195/2022

Training Course from the Association of Listed Companies

  • Strategic Financial Leadership Program (SFLP)​
  • Learn to develop KAM to benefit the Thai capital market literally.​​​​​

Course from the Federation of Accounting Professions Under the Royal Patronage

  • Financial Instruments courses
  • Financial Model course
  • Thailand International Financial Reporting
  • Tax burden from oversea payment and Double Taxation Agreement
  • CFO FCCUS ON FINANCIAL REPORTING
  • Pack 5 & Fair Value

Other Training 

  • Corporate Tax Planning: Best Practices & Corporate Governance from Omega Worldclass institution. 
  • Strategic CFO in Capital Markets, SET
2021 - Present - Executive Director of Inoue Rubber (Thailand) PCL
2020 - Present - Manager of Accounting Division of Inoue Rubber (Thailand) PCL
2017 - Present  - Member of Risk Management Committee of Inoue Rubber (Thailand) PCL
2016 - Present - CFO of Inoue Rubber (Thailand) PCL