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 39 years' experience with US based major 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 in Geophysics at Harvard University majoring in Geophysics. He is a member of the American Association of Petroleum Geologists (AAPG), Southeast Asia Petroleum Exploration Society (SEAPEX), and Indonesian Petroleum Association (IPA).
MR SAMUEL CHEONG is Vice President for Commercial. Prior to joining the Company, he was Commercial Director of Orchard Energy Pte Ltd, which was owned by Temasek Holdings before it was acquired by the Company. Mr Cheong started his career with Singapore Petroleum Company Limited and has worked in both its upstream and downstream divisions for over 17 years, serving in various capacities ranging from business development and new venture, upstream commercial, risk management and crude operation. He also led the company's asset team in managing its entire portfolio of upstream exploration and production assets spread across Australia, China, Indonesia and Vietnam.
Mr Cheong has over 25 years of experience in the oil and gas industry and holds a Bachelor of Business Administration degree from the National University of Singapore.
MR EDWIN TAN is Vice President for Legal. Mr Tan has a number of years of legal knowledge and experience, including in the areas of corporate law, compliance, company secretarial and oil & gas. Before joining the Company, he was legal counsel at Singapore Petroleum Company Limited ("SPC") for over 8 years, where he also managed the group's company secretarial function. Prior to SPC, he was in legal practice in Singapore, at law firms including Shook Lin & Bok and Khattar Wong & Partners where he also headed their corporate secretarial practices.
Mr Tan graduated with a Bachelor of Arts with Honours (Law) degree from the University of Kent at Canterbury, England and was admitted as an Advocate and Solicitor in Singapore.
MR THEN GUANG YAW is Vice President for Finance. He joined the Company in 2006 as Internal Audit Manager and was appointed as the Group Financial Controller in 2007 before assuming his current position in 2013. Mr Then has extensive experience in the areas of management, finance, accounting and audit. Prior to joining the Group, he spent 6 years in South America as the Financial Controller and later as General Manager with a company of the Rimbunan Hijau Group. Mr Then is a Fellow of the Association of Chartered Certified Accountants.