DATO' SRI DR TIONG IK KING, who had been a Non-Executive Director since 7 March 1997 and
Non-Executive Chairman since 31 March 2005, was re-designated as Executive Director on 13 March 2008. On 2
March 2017, he was re-designated as a Non-Executive and Non-Independent Director and on 29 March 2018, he was
appointed as Deputy Chairman. On 26 April 2019, Dato' Sri Dr Tiong was appointed Non-Executive and
Non-Independent Chairman of the Company. He graduated with a M.B.B.S Degree from National University of
Singapore in 1975 and attained M.R.C.P. from the UK Royal College of Physicians, United Kingdom, in 1977.
Dato' Sri Dr Tiong is also a Non-Independent Non-Executive Director of Jaya Tiasa Holdings Berhad, a publicly
listed timber and oil palm plantation company in Malaysia.
Mr Chang Cheng-Hsing Francis
Group CEO and Executive Director
MR CHANG CHENG-HSING FRANCIS was appointed as Group CEO and Executive Director effective 1
January 2014. Previously, Mr Chang held the position of Vice President of Exploration & Production of the
Group. Prior to RH Petrogas, he also held management and executive positions with GNT International Group,
Texas American Resources and Kerr McGee/Anadarko Petroleum. Mr Chang's over 40 years of experience with US
based majors and independent oil companies spans many producing basins in five continents.
Mr Chang holds a Bachelor of Science degree in Geology from National Taiwan University. He also attended
graduate school at Harvard University majoring in Geophysics. He is a member of American Association of
Petroleum Geologists ("AAPG"), Southeast Asia Petroleum Exploration Society ("SEAPEX"), and Indonesian
Petroleum Association ("IPA").
Mr Tiong Ing Zun Timothy
Non-Executive and Non-Independent Director
MR TIONG ING ZUN TIMOTHY was appointed as a Non-Executive and Non-Independent Director on 1 June
2022. He is a member of the Nominating Committee.
Mr Tiong has been involved in various capacities with the Rimbunan Hijau Group, a diversified conglomerate in
Malaysia, assisting and supporting the Group's corporate affairs. He also joined Rimbunan Sawit Berhad in
2011, a publicly listed oil palm plantation company in Malaysia and has served in various management and
corporate functions such as corporate management, sustainability compliance and digital transformation. He
also holds directorships in several private and joint-venture companies and has extensive experience in the
sectors of plantation, engineering, R&D, trading and logistics. He is an Accredited Director under the
Singapore Institute of Directors (SID) Director Accreditation programme.
He graduated with a Bachelor of Science degree in Chemistry from University of California Los Angeles, holds
a Master of Science in Material Science & Engineering from the National University of Singapore and a Master's
in Business Administration from INSEAD.
Mr Khoo Kar Khoon
Non-Executive and Non-Independent Director
MR KHOO KAR KHOON was appointed as an Independent Director on 8 February 2023. He was
re-designated as a Non-Executive and Non-Independent Director on 29 August 2025. He is a member of the Audit
Committee.
Mr Khoo has extensive experience in the media and advertising industry and is an Associate Member of the
Chartered Institute of Management Accountants, United Kingdom. Mr Khoo started his career with Coopers &
Lybrand before joining Bates Advertising. He then moved on to be one of the key founders of media specialist
firm Zenith Media in Malaysia, which was established in 1995. Mr Khoo then spent 17 years at food giant Nestle
Products Sdn Bhd, where he was the company's Media Manager and Communications Director from 2009 to 2016. From
2020 to 2025, Mr Khoo has held the appointment of Senior Advisor (Branding & Marketing) to Ekuiti Nasional
Berhad (Ekuinas) - a private equity company owned by the Government of Malaysia.
Mr Khoo is currently Executive Director, CEO Malaysia of Media Chinese International Limited. Mr Khoo also
holds numerous advisory and board membership positions relating to his experience in the advertising field. He
was the President and Advisor to the Malaysian Advertisers Association (MAA), Executive Member of the Asian
Federation of Advertising Associations (AFAA), Member of the Advisory Board, Othman Yeop Abdullah Graduate
School of Business, Universiti Utara Malaysia (UUM), Board Member of Audit Bureau of Circulation (ABC), Board
Member of Communication and Multimedia Content Forum (CMCF) in Malaysia and also was the Industry advisor for
the Bachelor of Communication (Honours) PR Programme under the Faculty of Arts and Science (FAS), Universiti
Tunku Abdul Rahman.
Dr Butler Andrew John
Independent Director
DR BUTLER ANDREW JOHN was appointed as an Independent Director on 11 August 2023. He is the
Chairman of the Nominating Committee and a member of the Audit and Remuneration Committees.
Dr Butler has over 28 years of experience in the upstream oil and gas industry having worked with large and
small operators across Northwest Europe, North Africa, Latin America and Southeast Asia, in various technical,
commercial and leadership roles. He is currently Chief Executive Officer for Sunda Energy Plc, a UK-listed oil
and gas exploration and appraisal company. His previous experience has been with Mitra Energy Inc. (now
Jadestone Energy Plc), BG Group (now Shell) and Hess Corporation. Dr Butler is a Fellow of the Geological
Society of London, twice former Vice President of the South-East Asia Petroleum Exploration Society ("SEAPEX")
and a member of the Society of Petroleum Engineers ("SPE") and the Association of International Energy
Negotiators ("AIEN").
Dr Butler holds a B.A. in Geology from the University of Oxford and a Ph.D in Geology from the University of
Cambridge.
Ms Lelaina Lim Siew Li
Independent Director
MS LELAINA LIM SIEW LI was appointed as an Independent Director on 26 April 2024. She is the
Chairman of the Audit and Remuneration Committees and a member of the Nominating Committee.
Ms Lim has extensive experience in accounting and finance and has built a strong track record of leadership
and performance in progressively bigger roles and larger companies across Singapore and China, where she spent
more than 40 years. She previously held the position of Group Chief Financial Officer at Eu Yan Sang
International Limited from 2017 to 2023 and Al Futtaim Asia LLC from 2014 to 2017.
Ms Lim holds a Bachelor of Accountancy degree from the National University of Singapore. She is also a Fellow
Member of the Institute of Singapore Chartered Accountants and a Senior Accredited Member of the Singapore
Institute of Directors.
Ms Caroline Lee
Independent Director
MS CAROLINE LEE was appointed as an Independent Director on 1 October 2025. She is a member of
the Audit, Nominating and Remuneration Committees.
Ms Lee has over 35 years of experience in the public accountancy profession. She was a Partner with KPMG LLP
in Singapore, where she specialised in professional standards, ethics, audit quality and risk management. From
2015 to 2022, she served as Regional Head of Quality & Risk Management for KPMG Asia Pacific and was a member
of KPMG's Global Quality & Risk Management Steering Group. In this capacity, she worked closely with member
firms across the Asia Pacific region, providing oversight on governance, compliance, risk and quality
management systems.
Beyond her professional career, Ms. Lee has been actively involved in global and national standard setting.
She was a member of the International Ethics Standards Board for Accountants (IESBA) from 2017 to 2022,
including as Deputy Chair, contributing to international ethics and independence standards for the accountancy
profession. In Singapore, she chaired the Ethics Sub-Committee of the Public Accountants Oversight Committee
from 2021 to 2023 and continues to contribute through the ISCA Ethics Committee.
Ms Lee holds a Bachelor of Accountancy degree from the National University of Singapore. She is a Fellow
Chartered Accountant of Singapore who is a Member-in-Retirement of the Institute of Singapore Chartered
Accountants.
Mr Jean-Louis Pierre Morin
Independent Director
MR JEAN-LOUIS PIERRE MORIN was appointed as an Independent Director on 1 November 2025. He is
also a member of the Audit, Nominating and Remuneration Committees.
Mr Morin brings 30 years of global experience in the Oil & Gas, LNG, energy infrastructure, cleantech and
environmental markets. His extensive career includes senior roles in management, M&A, upstream commercial,
energy trading and risk management, strategy and portfolio management, governance, business development and
advisory across Europe, the USA and Asia working with major entities like Shell (17 years), Hess Corporation
(now Chevron) and EY. He has advised Bellus Ventures, a US investment firm specialized in the growth areas of
energy transition, carbon markets and sustainable metals. He founded Polymath Advisors, a management
consulting and business advisory firm in Singapore focused on investment, ESG risks and sustainability in the
energy, cleantech and environmental markets sectors.
Mr Morin is an Accredited Director under the Singapore Institute of Directors (SID) Director Accreditation
programme and holds a CFA certificate in Sustainable Investing.
He graduated with a Master in Engineering from ENSEE (Grenoble Institute of Technology, France) and an
International Diploma in Advanced Chemical Engineering from Imperial College, London. He also holds a Master
in Business Administration from Rotterdam School of Management, Erasmus University and a Master in Public
Administration from Harvard University.
