Mr. Kris Imsang
Director / President and Chief Executive Officer / Member of the Risk Management Committee
Education/Training
Current Position
Board member/Management in Listed Company – The Stock Exchange of Thailand
Oct. 2022 – Present Director / President and Chief Executive Officer, IRPC Public Company Limited
Oct. 2022 – Present Chief Operating Officer reporting to Chief Operating Officer, Downstream Petroleum Business Group,
PTT, working on a secondment as Chief Executive Officer and President, IRPC Public Company Limited
Board member/Management in Non-Listed Company – The Stock Exchange of Thailand
May 2023 – Present Managing Director, Chulalongkorn University Alumni Association
Jan. 2023 – Present Member of the Council of Honorable Institutions, Vidyasirimedhi Institute of Science and Technology (VISTEC)
Oct. 2022 – Present Director, IRPC Polyol Company Limited
Oct. 2022 – Present Council of Trustees, Petroleum Institute of Thailand
Oct. 2022 – Present Council Member, Thailand Business Council for Sustainable Development
Apr. 2022 – Present Secretary, The Federation of Thai Industries
Feb. 2021 – Present Board of Directors, Sirindhorn International Institute of Technology, Thammasat University (SIIT)
Jun. 2020 – Present Executive Director, Thailand Energy Academy
Aug. 2019 – Present Qualified Member of the Committee
Work experience within the past 5 years
Oct. 2022 – Mar. 2023 Director, UBE Chemicals (Asia) Public Company Limited
Oct. 2022 – Dec 2022 Director, IRPC A&L Company Limited
Oct. 2022 – Dec 2022 Chairman, PTT Energy Solutions Company Limited
Apr. 2022 – Sep. 2022 Chairman of the Nomination and Remuneration Committee, IRPC Public Company Limited
Jan. 2021 – Apr. 2022 Chairman, IRPC Public Company Limited
Jan. 2021 – Sep. 2022 Director / Board of the Nomination and Remuneration Committee, PTT Oil and Retail Business Public Company Limited
Sep. 2020 – Sep. 2022 Chairman, PTT Tank Terminal Company Limited
Jun. 2020 – Sep. 2022 Chief Operating Officer, Downstream Petroleum Business Group, PTT Public Company Limited
Aug 2020 – Apr 2022 Vice Chairman – FTI Academy Committee, The Federation of Thai Industries
Mar. 2019 – Jan. 2020 Member of the Nomination and Remuneration Committee, IRPC Public Company Limited
Nov. 2019 – May. 2020 Senior Executive Vice President, Down Stream Business Group Alignment, PTT Public Company Limited
Oct. 2018 – Oct. 2019 Senior Executive Vice President, Corporate Governance and Regulatory Affairs, PTT Public Company Limited
Jan. 2018 – Sep. 2018 Senior Executive Vice President, Organization Management and Sustainability, PTT Public Company Limited
Dec. 2017 – Sep. 2022 Director, IRPC Public Company Limited
Dec. 2017 – Feb. 2019 Member of the Corporate Governance Committee, IRPC Public Company Limited
Sep. 2017 – Oct. 2019 Chairman, Sarn Palung Social Enterprise Company Limited
Mar. 2016 – Aug. 2019 Committee, Kamnoetvidya Science Academy (KVIS)
Feb. 2016 – Dec. 2017 Senior Executive Vice President, Human Resources & Organization Excellence, PTT Public Company Limited
Feb. 2015 – Nov. 2019 Chairman, Energy Complex Company Limited
Aug. 2015 – Jan. 2016 Executive Vice President, Retail Marketing, PTT Public Company Limited
Mr. Phichin Aphiwantanaporn
Senior Executive Vice President, Corporate Accounting & Finance
Education/Training
Current Position
Board member/Management in Listed Company – The Stock Exchange of Thailand
Oct. 2022 – Present Senior Executive Vice President, Corporate Accounting & Finance, IRPC Public Company Limited
Oct. 2018 – Present Executive Vice President, Corporate Finance & Accounting, PTT Public company Limited
Board member/Management in Non-Listed Company – The Stock Exchange of Thailand
Oct. 2022 – Present Director, IRPC A&L Company Limited
Oct. 2022 – Present Director, Innopolymed Company Limited
Oct. 2022 – Present Director, UBE Chemicals (Asia) Public Company Limited
Oct. 2022 – Present Director, WHA Industrial Estate Rayong Company Limited
Oct. 2022 – Present Director, Mytex Polymers (Thailand) Company
Oct. 2022 – Present Director, IRPC Clean Power Company
Oct. 2022 – Present Director, IRPC Polyol Company Limited
Work experience within the past 5 years
Jan. 2022 – Sep. 2022 Chairman, PTT Retail Business Management Company Limited
Jan. 2022 – Sep. 2022 Director, Pertroasia (Thailand) Company Limited
2018 – Sep. 2022 Senior Executive Vice President, Finance,
PTT Oil and Retail Business Public Company Limited
2018 Vice President- Group Financial Planning (acting),
PTT Public Company Limited
2013 – 2018 Vice President – Investor Relations Department,
PTT Public Company Limited
Miss Wanida Utaisomnapa
Senior Executive Vice President, Corporate Commercial and Marketing
Education/Training
Current Position
Board member/Management in Listed Company – The Stock Exchange of Thailand
Jan. 2019 – Present Senior Executive Vice President, Corporate Commercial and Marketing, IRPC Public Company Limited
Board member/Management in Non-Listed Company – The Stock Exchange of Thailand
Feb. 2022 – Present Chairman, Ipolymer Company Limited
Jan. 2023 – Present Director, WHA Industrial Estate Rayong Company Limited
Jan. 2023 – Present Chairman, IRPC A&L Company Limited
Dec. 2022 – Present Director, Ipolymer Company Limited
Jul. 2020 – Present Director, Mytex Polymers (Thailand) Company
Jul. 2019 – Present Director, Guangzhou Saiju Performance Polymer Company Limited
Mar. 2019 – Present Director, IRPC A&L Company Limited
Jan. 2019 – Present Director, UBE Chemicals (Asia) Public Company Limited
Work experience within the past 5 years
Apr. 2019 – Dec. 2021 Director, IRPC Polyol Company Limited
Nov. 2018 – Mar. 2023 Director, IRPC OIL Company Limited
Nov. 2018 – Mar. 2019 Director, IRPC Clean Power Company Limited
Oct. 2018 – Dec. 2018 Executive Vice President, Strategic Transformation and Result Delivery Office, IRPC Public Company Limited
Feb. 2015 – Dec. 2018 Secretary of the Risk Management Committee,
IRPC Public Company Limited
Jan. 2015 – Dec. 2018 Executive Vice President, Corporate Business Planning,
IRPC Public Company Limited
Mr. Woravuth Sivapetranart
Senior Executive Vice President, Operation
Education/Training
Current Position
Board member/Management in Listed Company – The Stock Exchange of Thailand
Jan. 2023 – Present Senior Executive Vice President, Operation, IRPC Public Company Limited
Board member/Management in Non-Listed Company – The Stock Exchange of Thailand
May. 2021- Present Director, IRPC OIL Company Limited
Mar. 2021- Present Director, Rayong Acetylene Company Limited
Mar. 2019 – Present Director, WHA Industrial Estate Rayong Company Limited
Mar. 2019 – Present Director, IRPC Clean Power Company Limited
Mar. 2017 – Present Director, IRPC Polyol Company Limited
Apr. 2017- Present Director, IRPC A&L Company Limited
Work experience within the past 5 years
May. 2021 – Dec. 2022 Acting Senior Executive Vice President, Innovation and Operation Excellence, IRPC Public Company Limited
Mar. 2019 – Dec. 2022 Senior Executive Vice President, Petrochemical and Refinery Operation, IRPC Public Company Limited
Jan. 2019-Feb. 2019 Senior Executive Vice President, Petrochemical & Refinery Business Unit, IRPC Public Company Limited
Jan. 2017-Dec. 2018 Executive Vice President, Refinery and Petrochemical Operation, IRPC Public Company Limited
2014-2016 Executive Vice President, Technology & Operational Excellence, IRPC Public Company Limited
Mr. Porames Chullawichit
Senior Executive Vice President, Corporate Organization Effectiveness and Digital
Education/Training
Current Position
Board member/Management in Listed Company – The Stock Exchange of Thailand
Jan. 2022 – Present Senior Executive Vice President, Corporate Organization Effectiveness and Digital, IRPC Public Company Limited
Board member/Management in Non-Listed Company – The Stock Exchange of Thailand
Nov. 2022 – Present Chariman, IRPC Technology Company Limited
Jan. 2022 – Present Director, IRPC Technology Company Limited
Work experience within the past 5 years
Jan. 2023 Acting Senior Vice President, Office of Corporate Internal Audit
Aug. 2020 – Dec. 2021 Executive Vice President, Engineering & Maintenance
Feb. 2020 Acting Executive Vice President, Engineering & Maintenance
Jan. 2018 Vice President,Maintenance Service 2 Department
Oct. 2014 Vice President,Inspection and Reliability Department
Jun. 2010 Vice President,Engineering Department
Mr. Pranarch Kosayanont
Senior Executive Vice President, Corporate Strategy Planning and Business Development
Education/Training
Current Position
Board member/Management in Listed Company – The Stock Exchange of Thailand
Jul. 2023 – Present Senior Executive Vice President, Corporate Strategy Planning and Business Development, IRPC Public Company Limited
Board member/Management in Non-Listed Company – The Stock Exchange of Thailand
Jan. 2023 – Present Director, IRPC Clean Power Company Limited
Jan. 2023 – Present Chariman, Mytex Polymers (Thailand) Company
Jan. 2023 – Present Director, IRPC A&L Company Limited
Work experience within the past 5 years
Jan. 2023 – Jun. 2023 Acting Senior Executive Vice President, Corporate Strategy Planning and Business Development, IRPC Public Company Limited
Jan. 2022 – Dec. 2022 Ultra Clean Fuel (UCF) Project Director, IRPC Public Company Limited
Mar. 2020 – Dec. 2021 Executive Vice President, Refinery and Petrochemical Operation, IRPC Public Company Limited
Aug. 2019 – Feb. 2020 Executive Vice President, Production & Operation, IRPC Public Company
Jan. 2017 – Jul. 2019 Acting Executive Vice President, Production & Operation, IRPC Public Company Limited
Miss Arisara Suthasut
Executive Vice President, Corporate Affairs and Company Secretary
Education/Training
Current Position
Board member/Management in Listed Company – The Stock Exchange of Thailand
Oct. 2019 – Present Executive Vice President, Corporate Affairs and Company Secretary, IRPC Public Company Limited
2019 – Present Department Manager, Chief Operation Office Downstream Petroleum Business, PTT Public Company Limited
Board member/Management in Non-Listed Company – The Stock Exchange of Thailand
Oct. 2019 – Present Director, IRPC Technology Company Limited
Oct. 2019 – Present Director, Sarn Palung Social Enterprise Company Limited
Work Experience within the past 5 years
Jan. 2020 – Dec. 2020 Acting Executive Vice President, Corporate Sustainability Management, IRPC Public Company Limited
2018 – Sep. 2019 Director, Corporate Management Department, PTT Tank Terminal Company Limited
2013 – 2019 Division Manager, Downstream Business, PTT Public company Limited
2013 – 2017 Division Manager, Business Development Department, IRPC Public Company Limited
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