
Mr Mark Gainsborough
Chairman of the Board
Non-Executive/Independent Director
Appointed on 28 February 2023
Chairman, Nomination and Remuneration Committee
Chairman, Transformation Committee
Member, Corporate Social Responsibility Committee
Mr Mark Gainsborough spent 39 years with Shell where he held various senior appointments, based in the UK, Turkey, Netherlands and Singapore. His last role in Shell was Executive Vice-President (EVP) and head of Shell’s New Energies business. He was responsible for building positions in renewable power, energy storage, EV charging, hydrogen, biofuels and nature-based solutions. Prior to this, he was EVP of Global Commercial, leading Shell’s global Lubricants, Bitumen, Jet Fuel, Marine Fuels and Sulphur businesses.
After retiring from Shell in 2020, he founded Low Carbon Advisors, a business that helps boards and CEOs to navigate the path to net zero carbon emissions.
Mr Gainsborough is currently a board member of Greenko, one of the largest renewables developers in India and Husk Power Systems, a leading developer of mini-grids in India and Africa. He is also an independent director at Green Mantra Technologies, a Canadian plastics recycling business. He serves on a number of advisory boards including Beyond Net Zero, an Energy Transition investment fund, and is a member of the United Overseas Bank (UOB) Sustainability Advisory Panel. His past professional interests include the healthcare sector, serving for five years as a non-executive director of one of the UK’s National Health Service Trusts. He has also served as the vice president of the European Petroleum Industry Association. He currently chairs the board of a wildlife conservation charity based in South Africa.
Mr Gainsborough holds a Master’s degree in Environmental Policy and a Bachelor of Science degree in Psychology from University College, London. He is a Fellow of the UK Energy Institute.

Mr Yap Chee Keong
Deputy Chairman
Non-Executive/Independent Director
Appointed on 8 December 2021
Chairman, Audit and Risk Committee
Member, Nomination and Remuneration Committee
Member, Transformation Committee
Mr Yap Chee Keong currently sits on various boards including Shangri-La Asia Limited, Olam International Limited, Sembcorp Industries Ltd, Ensign InfoSecurity Pte. Ltd., PIL Pte Ltd and Singapore Life Holdings Pte Ltd. He was formerly the Executive Director of The Straits Trading Company and Chief Financial Officer of Singapore Power Group.
Mr Yap previously served on the boards of MediaCorp Pte Ltd and Singapore’s Accounting and Corporate Regulatory Authority (ACRA), and was a member of ACRA’s Public Accountants Oversight Committee. He was a member of the working group convened by the Monetary Authority of Singapore (MAS), Singapore Exchange (SGX) and ACRA to review the Guidebook for Audit Committees in Singapore, as well as the panel convened by MAS, SGX, ACRA and the Singapore Institute of Directors, which formulated guidelines for board risk committees.
Mr Yap holds a Bachelor of Accountancy from the National University of Singapore and is a Fellow of the Institute of Singapore Chartered Accountants, CPA Australia and Singapore Institute of Directors.

Mr Chris Ong
Chief Executive Officer
Executive/Non-Independent
Director
Appointed on 28 February 2023
Member, Corporate Social Responsibility Committee
Member, Transformation Committee
Mr Chris Ong was appointed as an executive director and the Chief Executive Officer (CEO) of the Company on 28 February 2023. He is the CEO of Keppel Offshore & Marine Ltd since 1 July 2017.
Mr Ong is a board member of the Maritime and Port Authority of Singapore and a member of the Board of Governors of the Institute of Technical Education and the Global Centre for Maritime Decarbonisation. He is the Vice Chairman of the Singapore Institute of Technology Industry Advisory Committee. He is a council member of Stiftelsen Det Norske Veritas and a member of DNV GL South East Asia and Pacific Technical Committee and American Bureau of Shipping Committee.
Mr Ong holds a Bachelor of Engineering (Electrical and Electronics) and a Master of Science (Electrical and Electronics Engineering) from the National University of Singapore and has completed Berkeley-Nanyang’s Advanced Management Programme.

Mr Nagi Hamiyeh
Non-Executive/Non-Independent Director
Appointed on 28 February 2023
Member, Audit and Risk Committee
Member, Nomination and Remuneration Committee
Member, Transformation Committee
Mr Nagi Hamiyeh is currently a Managing Director and the Head of Portfolio Development Group at Temasek. Previously, he led Temasek’s Natural Resources, Industrials, Consumer and Real Estate Investment teams and was Joint Head of Enterprise Development Group, Joint Head of the Investment Group, and Head of Africa and Middle East, Australia and New Zealand. He is also a director on the boards of Sembcorp Industries, Olam Group, Olam Food Ingredients, Kyanite Investment Holdings and Kyanite Investment Holdings (I).
Mr Hamiyeh has more than 28 years of experience in strategy, corporate finance, mergers and acquisitions, growth equity, private equity and public investing in multiple industries across the globe. Prior to joining Temasek in 2005, he was a banker with Credit Suisse First Boston’s Energy Group. He began his career at Bain & Company.
Mr Hamiyeh holds a Master of Science degree in Civil and Environmental Engineering from Massachusetts Institute of Technology, as well as a Bachelor of Science degree in Civil Engineering from University of Texas.

Mr Jan Holm
Non-Executive/Independent Director
Appointed on 28 February 2023
Chairman, Corporate Social Responsibility Committee
Member, Audit and Risk Committee
Member, Transformation Committee
Mr Jan Holm is currently EVP of Seaborg Technologies where he is responsible for its Southeast Asia business. He previously worked in the Maersk Group for 17 years in various positions including CEO of Maersk Drilling in Singapore where he was responsible for the business of Maersk Drilling in Asia. Prior to that, he worked in Danske Bank Group within finance and business development.
Mr Holm is Chairman of the board and investor of Risk Intelligence A/S, as well as the co-founder and Chairman of the board of the Singapore based think tank Centre for Strategic Energy and Resources.
Mr Holm holds a Master of Science degree in Economics & Business Administration from Aarhus Business School as well as an Executive MBA from Copenhagen Business School. He has completed the INSEAD Advanced Management Program and Asian International Executive Program. He is also a certified international director from INSEAD. He has completed the mandatory training required to sit on the board of an SGX listed company.

Mr Lai Chung Han
Non-Executive/Independent Director
Appointed 28 February 2023
Member, Corporate Social Responsibility Committee
Member, Transformation Committee
Mr Lai Chung Han has been Permanent Secretary for Education since April 2019. Prior to that, he was the Second Permanent Secretary of Education and Home Affairs from 2017. Before joining the Ministry of Education, he spent 25 years in the Singapore Armed Forces as a naval officer and was appointed as Chief of Navy in August 2014.
Mr Lai is a Member of the Board of Trustees of Nanyang Technological University and the National University of Singapore, and is the Council Chair of the National Institute of Education. He was previously Director of ST Marine, ST Electronics (Info-Comm Systems) and the Maritime and Port Authority of Singapore, as well as a former member of the Board of Trustees for the Singapore Management University and Board of Governors of Temasek Polytechnic.
Mr Lai graduated with a Bachelor of Arts (First Class Honours) and Master of Arts in Economics from Cambridge University, UK, as well as a Master in Public Administration from the Kennedy School, Harvard University, USA.

Ms Ieda Gomes Yell
Non-Executive/Independent Director
Appointed on 1 May 2023
Member, Corporate Social Responsibility Committee
Member, Transformation Committee
Ms Yell is an expert in the natural gas, energy and infrastructure industries with an international career spanning 35 years. She spent 14 years with BP plc. Before joining BP, she was CEO of Brazil’s largest gas utility, the Sal Paulo Gas Company.
Ms Yell was Brazil’s Veuve Clicquot Business Woman of the Year in 2001 and has an extensive experience as a Non-Executive Director of various listed and private companies in Brazil, France and the United States.
Ms Yell is a Visiting Fellow of the Oxford Institute for Energy Studies, and a member of the Advisory Council of the Brazilian think tank FGV Energia, the Infrastructure Council of the Sao Paulo Federation of Industries ( FIESP) and the Advisory Council of the Brazilian Chamber of Commerce in Great Britain.
Ms Yell has a BSc, Chemical Engineering (Federal University of Bahia), an MSc, Energy (University of Sao Paulo), and a Master, Environmental Engineering (Polytechnic School of Lausanne). She has also obtained designation and formation in ESG by Competent Boards.

Mr Sarjit Singh Gill
Non-Executive/Independent Director
Appointed 01 June 2023
Member, Audit and Risk Committee
Mr Gill is a Senior Partner with Shook Lin & Bok. He is a Senior Counsel, Supreme Court of Singapore since 1998. He has extensive experience in a broad range of litigation and arbitration matters, with a special focus on corporate and commercial disputes, banking-related disputes, shareholders’ disputes, professional negligence and fraud. He also has an active international arbitration practice, having been involved in a significant number of complex arbitrations in Singapore and abroad.
Mr Gill is a member of the Life Imprisonment Review Board, The President’s Pleasure Review Board and Long Imprisonment Review Board. He has also been appointed to serve as a member of the Singapore international Arbitration Centre (SIAC) Panel of Arbitrators and has served as a member of the Singapore International Mediation Centre Specialist Mediator Panel (Singapore) from 2020 to 2022. He is a board member of the Inland Revenue Authority of Singapore, as well as the Urban Redevelopment Authority. He is also a non-executive director of Heliconia Capital Management Pte Ltd and served on the Board of the Central Provident Fund from 2012 to 2018.
Mr Gill holds a Bachelor of Laws (Honours) from the National University of Singapore. He is an Advocate and Solicitor, Singapore (1977) as well as a Solicitor, England and Wales (2003).

Ms Astrid Skarheim Onsum
Non-Executive/Independent Director
Appointed 01 September 2023
Member, Transformation Committee
Ms Onsum has close to 30 years of experience in the energy sector. She has held a range of technical and leadership roles, at onshore as well as offshore sites. Her experience includes offshore oil and gas, renewable energy, mining, circular economy, digital solutions and software.
Ms Onsum holds a Master of Science in Mechanical Engineering from The Norwegian Institute of Science and Technology. She was the former Chief Executive Officer of The NG (Norsk Gjenvinning) Group. Prior to that, she had spent the majority of her career with various Aker companies and was the Chief Executive Officer of Aker Offshore Wind AS. She currently serves as a Non-Executive Director of Epiroc AB, a Non-Executive Director of Spoor AS, and the Chair and Member of the Board of Nordic Unmanned AS.

Ms Mariel von Schumann
Non-Executive/Independent Director
Appointed 01 October 2023
Member, Corporate Social Responsibility
Member, Transformation Committee
Ms von Schumann has over 20 years of experience in leading management roles with deep knowledge of renewables, including manufacturing and servicing on-and-offshore wind turbines. She was the former Chief of Staff at Siemens AG, instrumental in design and execution of the strategic transformation of the Siemens Group and responsible for a diverse portfolio of corporate functions and initiatives (including investor relations and government affairs). She currently is a member of the Supervisory Board of Agora Strategy Group and Chairwoman of the Supervisory Board of Verti Versicherung AG.
Ms von Schumann holds a Bachelor of Arts in Economics and Management from ICHEC Brussels Management School and a Masters in Economics and International Management from ESCP Business School.

Mr Chris Ong
Chief Executive Officer
Mr Chris Ong was appointed as an executive director and the Chief Executive Officer of the Company on 28 February 2023. He was previously the CEO of Keppel Offshore & Marine Ltd from 1 July 2017.
Mr Ong is a board member of the Maritime and Port Authority of Singapore, the Global Centre for Maritime Decarbonisation, the Institute of Technical Education Board of Governors, and the Deputy Chairman of the Singapore Institute of Technology Industry Advisory Panel for Marine, Naval Architecture and Offshore course. He is a council member of Stiftelsen Det Norske Veritas and a committee member of American Bureau of Shipping.
Mr Ong holds a Bachelor of Engineering (Electrical and Electronics) and Master of Science (Electrical and Electronics Engineering) from the National University of Singapore and has completed Berkeley-Nanyang’s Advanced Management Programme.

Mr Paul Tan
Acting Group Finance Director
Reporting to the Chief Executive Officer, Mr Tan heads the Group’s overall finance function, which covers corporate finance, treasury, accounting, reporting, and taxation. Mr Tan has over 40 years’ of extensive experience in finance and accounting.
Prior to his current appointment, Mr Tan was the Chief Financial Officer of Keppel Offshore & Marine Ltd and the Group Controller of Keppel Corporation Limited. Mr Tan’s previous directorships include Dyna-Mac Holdings Limited, Penguin International Limited, K1 Ventures Limited and Keppel Philippines Holding Limited.
Mr Tan is a Fellow of Association of Chartered and Certified Accountants and a Member of Institute of Singapore Chartered Accountants.

Mr Chor How Jat
Chief Operating Officer
Reporting to the Chief Executive Officer, Mr Chor manages an operating system across the EPCI value chain to design and deliver complex, and commercially viable solutions to meet unique customer needs. He creates an integrated approach to lead and mobilise large, complex, and diverse technical and engineering workforce and operations across multiple sites, businesses, and geographies. Mr Chor has vast experience in leading Commercial, Engineering, Operations, HSE, Quality, Supply Chain, and Project Management departments to deliver projects on-time and on-budget.
Prior to his current appointment, Mr Chor was the Chief Operating Officer and Managing Director (Conversions & Repairs) at Keppel Offshore & Marine. He sat on the boards of numerous subsidiaries of Keppel Offshore and Marine. In addition, Mr Chor is a member of the American Bureau of Shipping (ABS), The Marine Technical Committee (TMTC) of ABS, Singapore Technical Committee of Nippon Kaiji Kyokai, Lloyd’s Register Southeast Asia Technical Committee (SEATC) and Singapore Maritime Foundation (SMF) Advisory Panel.
He holds a Bachelor of Engineering (Honours) in Naval Architect & Shipbuilding and Master of Science in Marine Technology from University of Newcastle Upon Tyne. He had also attended the General Management Program at Harvard Business School.

Dr Lee Chay Hoon
Chief People Officer
Reporting to the Chief Executive Officer, Dr Lee is responsible for the formulation and implementation of people strategy to achieve organisation goals. She leads the assessment and design of organisation development system, global people management processes, and leadership and capabilities-building to promote business excellence and competitive advantage.
Dr Lee has held various leadership and board appointments at Keppel Offshore and Marine, steered and worked with teams from more than 10 countries. She has extensive experience working with customers, unions, government agencies, classified societies, research institutes and tertiary education institutions. Prior to joining this industry, Dr Lee was Associate Professor and Director of the Nanyang Fellows EMBA Programme at Nanyang Technological University.
Dr Lee holds a Bachelor of Arts, Economics (Honours) from California State University, Northridge. She also holds a Master of Business Administration, Master of Science in Quantitative Analysis, and Doctor of Philosophy in Management from University of Cincinnati. Dr Lee also completed post-doctoral programmes from Harvard Business School, Center of Creative Leadership and University of Denver.

Madam Looi Lee Hwa
General Counsel
As General Counsel of Seatrium Group, Madam Looi is responsible for ensuring legal compliance, corporate governance matters, and providing strategic legal guidance to the organisation.
Madam Looi brings a wealth of experience in corporate law, regulatory matters, mergers and acquisitions, capital market fundraising, and resolving commercial disputes. She is a highly accomplished professional with over three decades of experience spanning multiple industries, including energy and renewables, liner shipping, manufacturing, and oil and gas. Prior to joining Seatrium, she held senior positions as Group General Counsel in several major companies, including Sembcorp Industries Ltd, Neptune Orient Lines Ltd, and Chartered Semiconductor Manufacturing. Her legal expertise and extensive experience make her a valuable asset in ensuring the legal and regulatory aspects of Seatrium's operations are well-managed and in compliance with relevant laws and standards.
Madam Looi holds a Bachelor of Laws (Honours) degree from the National University of Singapore and is admitted to the Bar as an advocate and solicitor of the Supreme Court of Singapore.

Mr Lim Howe Run
Chief Risk Officer
Reporting to the Chief Executive Officer, Mr Lim manages the Group’s overall risk function which includes risk management, compliance, internal audit and security. Mr Lim has over 30 years’ of professional experience in merger & acquisition, investments stewardship, corporate governance, risk management, control and compliance in the power industry.
Prior to his current appointment, Mr Lim held various leadership positions with Singapore Power Limited in the field of general management, risk management, asset management and business development. His previous senior appointments with Singapore Power Limited include Head of Compliance and Operational Audit, Head of Strategic Investments, Head of Regulatory Management and Deputy CEO of SPI Australia Assets Pte Ltd.
Mr Lim holds a Bachelor of Engineering (Mechanical) from National University of Singapore. He had also attended the Global Leadership Program at Harvard Business School and Enhancing Board Stewardship Program from Temasek Holdings Stewardship and Corporate Governance Centre.

Mr Lim Shih Hsien
Executive Vice President, Cyber IT & OT
Reporting to the Chief Executive Officer, Mr Lim is responsible for ensuring the security, efficiency, and innovation of Seatrium's digital ecosystem, bridging the gap between Cybersecurity, IT (Information Technology), and OT (Operational Technology) to support the organisation's growth and success. He will lead comprehensive cybersecurity efforts, shape IT strategy, guide OT integration, and provide strategic advisory to the executive team.
Mr Lim is a seasoned professional with close to 30 years of experience in cybersecurity, IT, and OT. Prior to his current appointment, he has excelled in leadership positions across public and private sectors, demonstrating expertise in enhancing cybersecurity, driving digital transformation, and innovating in operational technology. His career achievements in Certis Group, SP Group, The Hong Kong Jockey Club and MOH Holdings Pte Ltd include developing robust cybersecurity strategies, overseeing IT systems, optimizing OT initiatives, and managing cyber risk effectively. Mr Lim has been invited by World Economic Forum Centre for Cybersecurity & Electricity Industry Community, Hong Kong Health Authority, Gartner Research Board, Temasek Team8, and other leading global organisations to contribute thought leadership to their respective programmes.
Mr Lim holds a Bachelor of Commerce in Information Systems (1st Class Honours) from Curtin University of Technology, Perth, Western Australia. Additionally, he holds a Master of Science in Communications and Network Systems from Nanyang Technological University, Singapore where he received a scholarship from the Singapore National Computer Board. Mr Lim further enhanced his leadership skills by completing the Leadership-in-Action Programme at Harvard University.

Mr Aziz Merchant
Executive Vice President, Technology & New Product Development
Mr Aziz Merchant reports to the Chief Executive Officer and he manages technology development for new product development for offshore renewables, new energy, green oil & gas, autonomous ship solutions, amongst others. He has over 25 years’ extensive design & engineering experience in offshore oil & gas development projects and offshore/marine vessel designs. He has more than 100 international scientific patents granted or filed under his name. He is also an Adjunct Professor at the National University of Singapore since 2014.
Prior to his current appointment, he was the Director of Engineering at Keppel Offshore & Marine and Executive Director at Keppel Marine & Deepwater Technology.
He has received a Bachelor of Engineering (First Class) in Naval Architecture & Ocean Engineering from University of Glasgow and a Master for Science (MSc) in Naval Architecture from University College London. He had also attended the General Management Program (GMP) at Harvard Business School.

Mr William Gu
Executive Vice President, Oil & Gas (International)
Mr Gu reports to the Chief Executive Officer. He manages the Rigs & Floaters business, which includes product areas such as construction and conversion of FPSO, FDPSO, FSO, FPU, FLNG and MOPU; as well as drillships, semi-submersibles rigs, jack-up rigs, TLPs, SPARs, Sevan cylindrical floaters and Gravifloat units.
Mr Gu plays a key role in establishing long-term partnerships with offshore vessel and rig owners. He is instrumental in strengthening the Sembcorp Marine brand among oil majors.
Mr Gu holds a Bachelor of Engineering (Naval Architecture and Ocean Engineering) from Shanghai Jiao Tong University, China, and a Master of Science in Industrial and Systems Engineering from the National University of Singapore.

Mr Marlin Khiew
Executive Vice President, Oil & Gas (Americas)
Mr Marlin Khiew reports to the Chief Executive Officer. He manages the business lines for the America units which includes FPSO, FSO, FPU, TLWP, FLNG, FSRU, drilling semi-submersibles, amongst others. He also heads the Brazil business units with his vast experience in the Brazil offshore market. Over the years, Mr Khiew has been instrumental in establishing strong partnerships with clienteles in the Americas.
Prior to his current appointment, Mr Khiew has held various management positions in engineering, projects, operations, and a commercial director role in Keppel Offshore and Marine and its subsidiaries in Singapore, as well as in Brazil. He has also held the chairmanship in the board of Floatel International Ltd.
Mr Khiew holds a Bachelor of Applied Science (Mechanical Engineering and specialised in Naval Architecture) from University of British Columbia, Canada. He had also attended the Advanced Management Program at National University of Singapore Business School.

Mr Samuel Wong
Executive Vice President, Fixed Platforms
Reporting to the Chief Executive Officer, Mr Wong manages the Fixed Platforms business, which covers International Renewables Offshore Substations, Oil and Gas Offshore Platforms.
Mr Wong has been with Sembcorp Marine for 30 years. He was Vice President of Offshore Platforms since 2017, focusing on products such as process, drilling, wellhead, power generation and accommodation platforms, offshore sub-stations and LNG modules.
Mr Wong holds a Bachelor of Engineering (Honours) in Marine Engineering from the University of Newcastle Upon Tyne, UK.

Mr Alvin Gan
Executive Vice President, Ship Repairs & Upgrades
Mr Gan reports to the Chief Executive Officer. He manages the Repairs & Upgrades business, which includes product areas such as repair, refurbishment, retrofitting, life extension and upgrading of vessels, offshore and marine structures and MODUs; as well as ship type upgrades and conversions.
Mr Gan joined Sembcorp Marine in 1995 and has held various production and project management positions in the Group’s ship repairs and upgrades business. He was most recently Assistant General Manager at Sembcorp Marine Integrated Yard, with responsibility for LNG business development and project management.
Mr Gan has a Bachelor of Engineering (Honours) in Naval Architecture and Offshore Engineering from the University of Strathclyde, UK.