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Mr.Sarath Ratanavadi
Chairman of Executive Committee
Position
  • Vice Chairman of the Board
  • Member of Nomination and Compensation Committee
  • Chairman of Executive Committee
Share Ratio (%) * None
Relationship with Management None
Highest Education
  • Master of Science (Engineering Management), University of Southern California, USA
Director training
  • DAP: Director Accreditation Program Class 138/2017
  • Capital Market Leadership Program (Class 7), Capital Market Academy
  • The Program of Senior Executives on Justice Administration (Class 23), Judicial Training Institute
  • Executive Development Training Program, Royal Thai Police
  • Executive Management with Business Development and Investment (Class 1), Institute of Business and Industrial Development
  • Rule of Law for Democracy (Class 6), College of the Constitutional Court
  • The Executive Program in Energy Literacy for a Sustainable Future (Class 1), Thailand Energy Academy
  • Administrative Justice for Executives Program (Class 1), Administrative Justice Institute, Office of the Administrative Courts
  • The Director General Public Prosecutors (Class 6), Public Prosecutor Office Training Institute, Office of the Attorney General
No.of other listed company to serve as director
  • 2 companies
Working Experiences
2021 - Present
Director
Intouch Holdings Plc
Director
GULF1 Co.,Ltd.
Director
Gulf Renewable Energy Co., Ltd.
2020 - Present
Vice Chairman of the Board
Gulf Energy Development Plc
2018 - Present
Board of Councilors
University of Southern, California Annenberg School for Communication and Journalism, USA
2017 - Present
Director and Chief Executive Officer
Gulf Energy Development Plc
Board Chairman
NIST International School Foundation
Director
Gulf Investment and Trading Pte. Ltd.
2016 - Present
Director
Gulf Holdings (Thailand) Co., Ltd.
2018 - 2020
Director
Gulf Energy International Co.,Ltd.
2008 - 2020
Director
Gulf JP Co., Ltd.
2011 - 2017
Director and Chief Executive Officer
Gulf Energy Development Co.,Ltd.
2008 - 2017
President
Gulf JP Co., Ltd.
Board Vice Chairman
NIST International School Foundation
2011 - 2016
Representative of Licensee
NIST International School
2008 - 2016
Executive Board Chairman
NIST International School
1994 - 2016
Director and President
Gulf Electric Plc
Illegal Record in past 10 years None
Mr. Somchai Lertsutiwong
Director
Position
  • Executive Director
  • Member of Sustainable Development Committee
  • Member of Executive Committee
  • Chief Executive Officer
Share Ratio (%) * 0.0004
Relationship with Management None
Highest Education
  • Master of Business Administration, Chulalongkorn University
Director training
  • Director Certification Program (DCP 107/2009)
No.of other listed company to serve as director
  • -
Working Experiences
April 2024 - Present
Independent Director
PTT Oil and Retail Business PCL
April 2024 - Present
Member of the Corporate Governance and Sustainability Committee
PTT Oil and Retail Business PCL
2020 - Present
Acting Chief Corporate Officer
Advanced Info Service Plc.
2014 - Present
Executive Director, Member of Sustainable Development Committee Member of Executive Committee, Chief Executive Officer, and Authorized Director
Advanced Info Service Plc.
2012 - 2014
Director, Chief Marketing Officer
Advanced Info Service Plc.
2007 - 2012
Executive Vice President - Marketing
Advanced Info Service Plc.
2004 - 2007
Senior Vice President - Wireless Communication
Advanced Info Service Plc.
Illegal Record in past 10 years None
Mr.Smith Banomyong
Director
Position
  • Non-executive director
  • Member of Executive Committee
Share Ratio (%) * None
Relationship with Management None
Highest Education
  • Master of Science (Economics), the London School of Economics and Political Science (LSE), UK
Director training
  • DCP: Director Certification Program Class 76/2008
  • Corporate Governance for Capital Market Intermediaries (CGI), Class 0/2014
  • Advanced Executive Program, Kellogg School of Management, Northwestern University
  • Capital Market Leadership Program (Class 20), Capital Market Academy
  • The Executive Program in Energy Literacy for a Sustainable Future (Class 15), Thailand Energy Academy
  • Thailand Insurance Leadership Program (Class 2), OIC Advanced Insurance Institute
No.of other listed company to serve as director
  • 2 companies
Working Experiences
2021 - Present
Director
Intouch Holdings Plc
Director
Gulf Renewable Energy Co., Ltd.
Director
Gulf JP NS Co., Ltd.
Director
Gulf JP UT Co., Ltd.
Director
Gulf JP KP1 Co., Ltd.
Director
Gulf JP KP2 Co., Ltd.
Director
Gulf JP TLC Co., Ltd.
Director
Gulf JP NNK Co., Ltd.
Director
Gulf JP NLL Co., Ltd.
Director
Gulf JP CRN Co., Ltd.
Director
Gulf JP NK2 Co., Ltd.
Director
Gulf VTP Co., Ltd.
Director
Gulf TS1 Co., Ltd.
Director
Gulf TS2 Co., Ltd.
Director
Gulf TS3 Co., Ltd.
Director
Gulf TS4 Co., Ltd.
Director
Gulf NLL2 Co., Ltd.
Director
Gulf BL Co., Ltd.
Director
Gulf BP Co., Ltd.
Director
Gulf NC Co., Ltd.
Director
Gulf NPM Co., Ltd.
Director
Gulf NRV1 Co., Ltd.
Director
Gulf NRV2 Co., Ltd.
Director
Gulf Chana Green Co., Ltd.
Director
Gulf Pattani Green Co.,Ltd.
Director
Independent Power Development Co.,Ltd.
Director
Gulf SRC Co.,Ltd.
Director
Gulf PD Co.,Ltd.
Director
Gulf MP Co.,Ltd.
Director
Gulf WHA MT Natural Gas Distribution Co.,Ltd.
Director
WHA Eastern Seaboard NGD2 Co.,Ltd.
Director
WHA Eastern Seaboard NGD4 Co.,Ltd.
Director
Gulf Solar Co.,Ltd.
Director
Gulf Solar BV Co.,Ltd.
Director
Gulf Solar TS1 Co.,Ltd.
Director
Gulf Solar TS2 Co.,Ltd.
Director
Gulf Solar KKS Co.,Ltd.
Director
Gulf Energy Co.,Ltd.
Director
Gulf IPP Co.,Ltd.
Director
Gulf Power Generation Co.,Ltd.
Director
Gulf Yala Green Co.,Ltd.
Director
Gulf Cogeneration Comp,Limited
Director
Nong Khae Cogeneration Co.,Ltd.
Director
Samutprakarn Cogeneration Co.,Ltd.
Director
PTT Natural Gas Distribution Co.,Ltd.
Director
Global Mind Investment Management Pte. Ltd.
Director
Bentre Import Export Joint-Stock Corporation
2020 - Present
Chief of Asset Management and Investment
Gulf Energy Development Plc
Director
Borkum Riffgrund 2 Investor Holding GmbH
Director
Borkum Riffgrund 2 Offshore Wind Farm GmbH & Co. oHG
Director
Gulf LNG Co.,Ltd.
Director
Gulf O&M Services Co.,Ltd.
Director
Gulf Energy (Vietnam) Limited Liability Company
Director
Gulf International Investment (Hong Kong) Ltd.
Director
Kolpos Pte. Ltd.
Director
Gulf International Holding Pte. Ltd.
2020 - 2020
Chief International Business Officer
Gulf Energy Development Public Company Limited
2018 - 2020
Chief Financial Officer
Gulf Energy Development Public Company Limited
Senior Executive Vice President - Finance
Gulf JP Company Limited
2018 - 2018
Chairman
Association of Investment Management Companies
Director
The Federation of Thai Capital Market Organizations
Director
Thai Financial Markets Committee, the Bank of Thailand
2014 - 2018
Chief Executive Officer
SCB Asset Management Company Limited
Illegal Record in past 10 years None
Mr.Arthur Lang Tao Yih
Director
Position
  • Non-executive director
  • Member of Sustainable Development Committee
  • Member of Executive Committee
Share Ratio (%) * None
Relationship with Management None
Highest Education
  • Master of Business Administration, Harvard Business School
Director training None
No.of other listed company to serve as director 1 Company
Working Experiences
2021 - Present
Group Chief Financial Officer
Singapore Telecommunications Limited
2017 - 2021
Chief Executive Officer, International
Singapore Telecommunications Limited
2011 - 2016
Group Chief Financial Officer
CapitaLand Limited
Illegal Record in past 10 years None
Ms.Yupapin Wangviwat
Director
Position
  • Non-executive director
  • Member of Sustainable Development Committee
  • Member of Executive Committee
Share Ratio (%) * None
Relationship with Management None
Highest Education
  • Master of Business Administration, University of Florida, USA
Director training
  • DCP: Director Certification Program Class 164/2012
  • Capital Market Leadership Program (Class 16), Capital Market Academy
  • Top Executive Program in Commerce and Trade (Class 13), Commerce Academy, University of the Thai Chamber of Commerce
  • Executive Management with Business Development and Investment (Class 4), Institute of Business and Industrial Development
  • Digital Transformation for CEO (Class 1), Nation Multimedia Group Plc.
  • ABC Course, Class 5, Academy of Business Creativity, Sripatum University
No.of other listed company to serve as director
  • 2 companies
Working Experiences
2021 - Present
Director
GULF1 Co.,Ltd.
Director
Intouch Holdings Plc
2020 - Present
Member of the Sustainability, Governance and Risk Management Committee
Gulf Energy Development Plc
2019 - Present
Director
Rachakarn Asset Management Co.,Ltd.
2018 - Present
Director and Executive Director
Gulf Energy Development Plc
Director
Gulf Renewable Energy Co., Ltd.
2008 - Present
Senior Executive Vice President
Gulf JP Co.,Ltd.
1997 - Present
Chief Financial Officer
Gulf Electric Plc.
2020 - 2021
Director
Gulf JP Company Limited
Director
Gulf SRC Company Limited
Director
Gulf PD Company Limited
Director
Gulf Energy Mauritius Company Limited
2019 - 2021
Director
Independent Power Development Company Limited
2015 - 2021
Director
Gulf JP KP1 Company Limited
Director
Gulf JP KP2 Company Limited
Director
Gulf JP TLC Company Limited
Director
Gulf JP NNK Company Limited
Director
Gulf JP NLL Company Limited
Director
Gulf JP CRN Company Limited
Director
Gulf JP NK2 Company Limited
2014 - 2021
Director
Gulf Solar BV Company Limited
Director
Gulf Solar TS1 Company Limited
Director
Gulf Solar TS2 Company Limited
Director
Gulf Solar KKS Company Limited
Director
Gulf International Investment (Hong Kong) Limited
2013 - 2021
Director
Gulf MP Company Limited
Director
Gulf Solar Company Limited
Director
Gulf JP NS Company Limited
Director
Gulf JP UT Company Limited
2012 - 2021
Director
Gulf VTP Company Limited
Director
Gulf TS1 Company Limited
Director
Gulf TS2 Company Limited
Director
Gulf TS3 Company Limited
Director
Gulf TS4 Company Limited
Director
Gulf NC Company Limited
Director
Gulf BL Company Limited
Director
Gulf BP Company Limited
Director
Gulf NLL2 Company Limited
Director
Gulf NPM Company Limited
Director
Gulf NRV1 Company Limited
Director
Gulf NRV2 Company Limited
2011 - 2021
Director
Kolpos Pte. Ltd.
2019 - 2020
Director
Bangkok Smart Energy Company Limited
2017 - 2020
Director
Gulf WHA MT Natural Gas Distribution Company Limited
Director
WHA Eastern Seaboard NGD2 Company Limited
Director
WHA Eastern Seaboard NGD4 Company Limited
2015 - 2020
Director
Gulf Cogeneration Company Limited
Director
Samutprakarn Cogeneration Company Limited
Director
Nong Khae Cogeneration Company Limited
Director
Gulf Yala Green Company Limited
Director
Gulf Power Generation Company Limited
Director
Gulf IPP Company Limited
Director
Gulf Energy Company Limited
2014 - 2021
Director
Gulf International Holding Pte. Ltd.
2017 - 2019
Senior Executive Vice President and Chief Corporate Officer
Gulf Energy Development Plc.
2014 - 2017
Senior Executive Vice President and Chief Financial Officer
Gulf Energy Development Company Limited
Illegal Record in past 10 years None
Ms. Jeann Low Ngiap Jong
Director
Position
  • Non-executive director
  • Member of Nomination and Compensation Committee
  • Member of Executive Committee
Share Ratio (%) * None
Relationship with Management None
Highest Education
  • Bachelor of Accountancy,National University of Singapore
Director training
  • None
No.of other listed company to serve as director
  • 1 company
Working Experiences
2013 - Present
Director, Member of Nomination and Governace Committee
Advanced Info Service Plc.
2016 - Present
Director
Intouch Holdings Plc.
2015 - 2021
Group Chief Corporate Officer
Singapore Telecommunications Ltd.
2008 - 2015
Group Chief Financial Officer
Singapore Telecommunications Ltd.
Illegal Record in past 10 years None
Mr. Mark Chong Chin Kok
Director
Position
  • Executive Director
  • Member of Executive Committee
  • Deputy Chief Executive Officer
Share Ratio (%) * None
Relationship with Management None
Highest Education
  • Master, Business Administration, National University of Singapore, Singapore
  • Postgraduate Diploma, Business Administration, National University of Singapore, Singapore
  • Master, Research in Electronics Systemc, ENSERG, INPG, Grenoble France, France
  • General Degree, Electronics, ENSERG, INPG, Grenoble France, France
Director training
  • Director Accreditation Program (DAP) Class 2006, Thai Institute of Directors Association (IOD)
Working Experiences
2022 – Present
Deputy Chief Executive Officer
Advanced Info Service Plc.
2022 – Present
Director
CS Loxinfo Public Company Limited
2022 – Present
Director
Teleinfo Media Public Company Limited
2022 – Present
Director
AIN GlobalComm Company Limited
2022 – Present
Director
Advanced Magic Card Company Limited
2022 – Present
Director
Advanced Broadband Network Company Limited
2022 – Present
Director
Advanced Contact Centre Company Limited
2022 – Present
Director
Advanced Mpay Company Limited
2022 – Present
Director
Advanced Digital Distribution Company Limited
2022 – Present
Director
Bridge Mobile Pte Ltd.
2017 – Present
Authority Member
Civil Aviation Authority of Singapore (CAAS)
2017 – 2022
Singtel Group Chief Technology Officer
Singapore Telecommunications Limited
2013 - 2017
Singtel's Chief Executive Officer (International Group)
Singapore Telecommunications Limited
Illegal Record in past 10 years None
Additional information Mr. Mark Chong Chin Kok obtained his Bachelor of Electronics Engineering and Master of Research in Electronic Systems degrees at ENSERG INPG in Grenoble, France, on a Singapore Government scholarship. He also graduated from the National University of Singapore with a Master of Business Administration. He is a Singapore Computer Society senior fellow and the Chairman of Cyber and Data Governance Committee of a Singapore Government statutory Board.